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small changes by Soren Larsen
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62 changed files with 394 additions and 406 deletions
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@ -11,14 +11,14 @@ The sampling rate or frame rate is the number of times per second the
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sound is sampled. The number of channels indicate if the audio is
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sound is sampled. The number of channels indicate if the audio is
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mono, stereo, or quadro. Each frame consists of one sample per
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mono, stereo, or quadro. Each frame consists of one sample per
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channel. The sample size is the size in bytes of each sample. Thus a
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channel. The sample size is the size in bytes of each sample. Thus a
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frame consists of nchannels*framesize bytes, and a second's worth of
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frame consists of \var{nchannels}*\var{framesize} bytes, and a second's worth of
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audio consists of nchannels*framesize*framerate bytes.
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audio consists of \var{nchannels}*\var{framesize}*\var{framerate} bytes.
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Module \code{aifc} defines the following function:
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Module \code{aifc} defines the following function:
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\renewcommand{\indexsubitem}{(in module aifc)}
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\renewcommand{\indexsubitem}{(in module aifc)}
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\begin{funcdesc}{open}{file\, mode}
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\begin{funcdesc}{open}{file\, mode}
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Opens an AIFF or AIFF-C file and returns an object instance with
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Open an AIFF or AIFF-C file and return an object instance with
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methods that are described below. The argument file is either a
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methods that are described below. The argument file is either a
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string naming a file or a file object. The mode is either the string
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string naming a file or a file object. The mode is either the string
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'r' when the file must be opened for reading, or 'w' when the file
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'r' when the file must be opened for reading, or 'w' when the file
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@ -75,7 +75,7 @@ the given id.
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\end{funcdesc}
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\end{funcdesc}
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\begin{funcdesc}{readframes}{nframes}
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\begin{funcdesc}{readframes}{nframes}
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Read and return the next nframes frames from the audio file. The
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Read and return the next \var{nframes} frames from the audio file. The
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returned data is a string containing for each frame the uncompressed
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returned data is a string containing for each frame the uncompressed
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samples of all channels.
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samples of all channels.
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\end{funcdesc}
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\end{funcdesc}
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@ -175,6 +175,6 @@ not updated.
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\begin{funcdesc}{close}{}
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\begin{funcdesc}{close}{}
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Close the AIFF file. The header of the file is updated to reflect the
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Close the AIFF file. The header of the file is updated to reflect the
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actual size of the audio data After calling this method, the object
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actual size of the audio data. After calling this method, the object
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can no longer be used.
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can no longer be used.
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\end{funcdesc}
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\end{funcdesc}
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@ -1,8 +1,8 @@
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\section{Built-in module \sectcode{audioop}}
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\section{Built-in module \sectcode{audioop}}
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\bimodindex{audioop}
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\bimodindex{audioop}
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The audioop module contains some useful operations on sound fragments.
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The \code{audioop} module contains some useful operations on sound fragments.
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It operates on sound fragments consisting of signed integer samples of
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It operates on sound fragments consisting of signed integer samples
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8, 16 or 32 bits wide, stored in Python strings. This is the same
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8, 16 or 32 bits wide, stored in Python strings. This is the same
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format as used by the \code{al} and \code{sunaudiodev} modules. All
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format as used by the \code{al} and \code{sunaudiodev} modules. All
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scalar items are integers, unless specified otherwise.
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scalar items are integers, unless specified otherwise.
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@ -19,7 +19,7 @@ per sample, etc.
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\end{excdesc}
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\end{excdesc}
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\begin{funcdesc}{add}{fragment1\, fragment2\, width}
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\begin{funcdesc}{add}{fragment1\, fragment2\, width}
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This function returns a fragment that is the addition of the two samples
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This function returns a fragment which is the addition of the two samples
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passed as parameters. \var{width} is the sample width in bytes, either
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passed as parameters. \var{width} is the sample width in bytes, either
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\code{1}, \code{2} or \code{4}. Both fragments should have the same length.
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\code{1}, \code{2} or \code{4}. Both fragments should have the same length.
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\end{funcdesc}
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\end{funcdesc}
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@ -60,8 +60,8 @@ passed as an argument.
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\begin{funcdesc}{findfactor}{fragment\, reference}
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\begin{funcdesc}{findfactor}{fragment\, reference}
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This routine (which only accepts 2-byte sample fragments) calculates a
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This routine (which only accepts 2-byte sample fragments) calculates a
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factor \var{F} such that \code{rms(add(fragment, mul(reference, -F)))}
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factor \var{F} such that \code{rms(add(fragment, mul(reference, -F)))}
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is minimal, i.e. it calculates the factor with which you should
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is minimal, i.e.\ it calculates the factor with which you should
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multiply \var{reference} to make it match as good as possible to
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multiply \var{reference} to make it match as well as possible to
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\var{fragment}. The fragments should be the same size.
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\var{fragment}. The fragments should be the same size.
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The time taken by this routine is proportional to \code{len(fragment)}.
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The time taken by this routine is proportional to \code{len(fragment)}.
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@ -69,7 +69,7 @@ The time taken by this routine is proportional to \code{len(fragment)}.
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\begin{funcdesc}{findfit}{fragment\, reference}
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\begin{funcdesc}{findfit}{fragment\, reference}
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This routine (which only accepts 2-byte sample fragments) tries to
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This routine (which only accepts 2-byte sample fragments) tries to
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match \var{reference} as good as possible to a portion of
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match \var{reference} as well as possible to a portion of
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\var{fragment} (which should be the longer fragment). It
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\var{fragment} (which should be the longer fragment). It
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(conceptually) does this by taking slices out of \var{fragment}, using
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(conceptually) does this by taking slices out of \var{fragment}, using
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\code{findfactor} to compute the best match, and minimizing the
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\code{findfactor} to compute the best match, and minimizing the
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@ -81,8 +81,8 @@ and \var{factor} the floating-point factor as per \code{findfactor}.
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\begin{funcdesc}{findmax}{fragment\, length}
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\begin{funcdesc}{findmax}{fragment\, length}
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This routine (which only accepts 2-byte sample fragments) searches
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This routine (which only accepts 2-byte sample fragments) searches
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\var{fragment} for a slice of length \var{length} samples (not bytes!)
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\var{fragment} for a slice of length \var{length} samples (not bytes!)\
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with maximum energy, i.e. it returns \var{i} for which
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with maximum energy, i.e.\ it returns \var{i} for which
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\code{rms(fragment[i*2:(i+length)*2])} is maximal.
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\code{rms(fragment[i*2:(i+length)*2])} is maximal.
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The routine takes time proportional to \code{len(fragment)}.
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The routine takes time proportional to \code{len(fragment)}.
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@ -140,7 +140,7 @@ This function returns the maximum peak-peak value in the sound fragment.
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\end{funcdesc}
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\end{funcdesc}
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\begin{funcdesc}{mul}{fragment\, width\, factor}
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\begin{funcdesc}{mul}{fragment\, width\, factor}
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Mul returns a fragment that has all samples in the original framgent
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Return a fragment that has all samples in the original framgent
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multiplied by the floating-point value \var{factor}. Overflow is
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multiplied by the floating-point value \var{factor}. Overflow is
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silently ignored.
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silently ignored.
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\end{funcdesc}
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\end{funcdesc}
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@ -150,25 +150,6 @@ This function reverses the samples in a fragment and returns the
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modified fragment.
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modified fragment.
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\end{funcdesc}
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\end{funcdesc}
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\begin{funcdesc}{tomono}{fragment\, width\, lfactor\, rfactor}
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This function converts a stereo fragment to a mono fragment. The left
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channel is multiplied by \var{lfactor} and the right channel by
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\var{rfactor} before adding the two channels to give a mono signal.
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\end{funcdesc}
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\begin{funcdesc}{tostereo}{fragment\, width\, lfactor\, rfactor}
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This function generates a stereo fragment from a mono fragment. Each
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pair of samples in the stereo fragment are computed from the mono
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sample, whereby left channel samples are multiplied by \var{lfactor}
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and right channel samples by \var{rfactor}.
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\end{funcdesc}
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\begin{funcdesc}{mul}{fragment\, width\, factor}
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Mul returns a fragment that has all samples in the original framgent
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multiplied by the floating-point value \var{factor}. Overflow is
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silently ignored.
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\end{funcdesc}
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\begin{funcdesc}{rms}{fragment\, width\, factor}
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\begin{funcdesc}{rms}{fragment\, width\, factor}
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Returns the root-mean-square of the fragment, i.e.
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Returns the root-mean-square of the fragment, i.e.
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\iftexi
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\iftexi
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@ -184,6 +165,19 @@ divided by the sumber of samples.
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This is a measure of the power in an audio signal.
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This is a measure of the power in an audio signal.
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\end{funcdesc}
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\end{funcdesc}
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\begin{funcdesc}{tomono}{fragment\, width\, lfactor\, rfactor}
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This function converts a stereo fragment to a mono fragment. The left
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channel is multiplied by \var{lfactor} and the right channel by
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\var{rfactor} before adding the two channels to give a mono signal.
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\end{funcdesc}
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\begin{funcdesc}{tostereo}{fragment\, width\, lfactor\, rfactor}
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This function generates a stereo fragment from a mono fragment. Each
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pair of samples in the stereo fragment are computed from the mono
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sample, whereby left channel samples are multiplied by \var{lfactor}
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and right channel samples by \var{rfactor}.
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\end{funcdesc}
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\begin{funcdesc}{ulaw2lin}{fragment\, width}
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\begin{funcdesc}{ulaw2lin}{fragment\, width}
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This function converts sound fragments in ULAW encoding to linearly
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This function converts sound fragments in ULAW encoding to linearly
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encoded sound fragments. ULAW encoding always uses 8 bits samples, so
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encoded sound fragments. ULAW encoding always uses 8 bits samples, so
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@ -191,7 +185,7 @@ encoded sound fragments. ULAW encoding always uses 8 bits samples, so
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\end{funcdesc}
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\end{funcdesc}
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Note that operations such as \code{mul} or \code{max} make no
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Note that operations such as \code{mul} or \code{max} make no
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distinction between mono and stereo fragments, i.e. all samples are
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distinction between mono and stereo fragments, i.e.\ all samples are
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treated equal. If this is a problem the stereo fragment should be split
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treated equal. If this is a problem the stereo fragment should be split
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into two mono fragments first and recombined later. Here is an example
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into two mono fragments first and recombined later. Here is an example
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of how to do that:
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of how to do that:
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@ -207,10 +201,10 @@ def mul_stereo(sample, width, lfactor, rfactor):
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\end{verbatim}\ecode
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\end{verbatim}\ecode
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If you use the ADPCM coder to build network packets and you want your
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If you use the ADPCM coder to build network packets and you want your
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protocol to be stateless (i.e. to be able to tolerate packet loss)
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protocol to be stateless (i.e.\ to be able to tolerate packet loss)
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you should not only transmit the data but also the state. Note that
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you should not only transmit the data but also the state. Note that
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you should send the \var{initial} state (the one you passed to
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you should send the \var{initial} state (the one you passed to
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lin2adpcm) along to the decoder, not the final state (as returned by
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\code{lin2adpcm}) along to the decoder, not the final state (as returned by
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the coder). If you want to use \code{struct} to store the state in
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the coder). If you want to use \code{struct} to store the state in
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binary you can code the first element (the predicted value) in 16 bits
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binary you can code the first element (the predicted value) in 16 bits
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and the second (the delta index) in 8.
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and the second (the delta index) in 8.
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@ -44,7 +44,7 @@ Recursive objects (compound objects that, directly or indirectly,
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contain a reference to themselves) may cause a recursive loop.
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contain a reference to themselves) may cause a recursive loop.
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\item
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\item
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Because deep copy copies {\em everything} it may copy too much, e.g.
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Because deep copy copies {\em everything} it may copy too much, e.g.\
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administrative data structures that should be shared even between
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administrative data structures that should be shared even between
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copies.
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copies.
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@ -19,6 +19,6 @@ raised for general mapping errors like specifying an incorrect key.
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Open a dbm database and return a mapping object. \var{filename} is
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Open a dbm database and return a mapping object. \var{filename} is
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the name of the database file (without the \file{.dir} or \file{.pag}
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the name of the database file (without the \file{.dir} or \file{.pag}
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extensions), \var{rwmode} is \code{'r'}, \code{'w'} or \code{'rw'} as for
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extensions), \var{rwmode} is \code{'r'}, \code{'w'} or \code{'rw'} as for
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\code{open}, and \var{filemode} is the unix mode of the file, used only
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\code{open}, and \var{filemode} is the \UNIX{} mode of the file, used only
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when the database has to be created.
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when the database has to be created.
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\end{funcdesc}
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\end{funcdesc}
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@ -1,11 +1,11 @@
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% Manual text by Jaap Vermeulen
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% Manual text by Jaap Vermeulen
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\section{Built-in module \sectcode{fcntl}}
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\section{Built-in module \sectcode{fcntl}}
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\bimodindex{fcntl}
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\bimodindex{fcntl}
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\indexii{UNIX}{file control}
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\indexii{\UNIX{}}{file control}
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\indexii{UNIX}{IO control}
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\indexii{\UNIX{}}{I/O control}
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This module performs file control and IO control on file descriptors.
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This module performs file control and I/O control on file descriptors.
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It is an interface to the \dfn{fcntl()} and \dfn{ioctl()} \UNIX routines.
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It is an interface to the \dfn{fcntl()} and \dfn{ioctl()} \UNIX{} routines.
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File descriptors can be obtained with the \dfn{fileno()} method of a
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File descriptors can be obtained with the \dfn{fileno()} method of a
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file or socket object.
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file or socket object.
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@ -23,10 +23,10 @@ The module defines the following functions:
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the argument missing or an integer value, the return value of this
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the argument missing or an integer value, the return value of this
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function is the integer return value of the real \code{fcntl()}
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function is the integer return value of the real \code{fcntl()}
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call. When the argument is a string it represents a binary
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call. When the argument is a string it represents a binary
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structure, e.g. created by \code{struct.pack()}. The binary data is
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structure, e.g.\ created by \code{struct.pack()}. The binary data is
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copied to a buffer whose address is passed to the real \code{fcntl()}
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copied to a buffer whose address is passed to the real \code{fcntl()}
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call. The return value after a successful call is the contents of
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call. The return value after a successful call is the contents of
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the buffer, converted to a string object. In the case the
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the buffer, converted to a string object. In case the
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\code{fcntl()} fails, an \code{IOError} will be raised.
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\code{fcntl()} fails, an \code{IOError} will be raised.
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\end{funcdesc}
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\end{funcdesc}
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@ -405,7 +405,7 @@ returns \code{('a', 'b', 'c')} and \code{tuple([1, 2, 3])} returns
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\end{verbatim}\ecode
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\end{verbatim}\ecode
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\end{funcdesc}
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\end{funcdesc}
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\begin{funcdesc}{vars}{}
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\begin{funcdesc}{vars}{\optional{object}}
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Without arguments, return a dictionary corresponding to the current
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Without arguments, return a dictionary corresponding to the current
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local symbol table. With a module, class or class instance object as
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local symbol table. With a module, class or class instance object as
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argument (or anything else that has a \code{__dict__} attribute),
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argument (or anything else that has a \code{__dict__} attribute),
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@ -21,10 +21,10 @@ raised for general mapping errors like specifying an incorrect key.
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Open a gdbm database and return a mapping object. \var{filename} is
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Open a gdbm database and return a mapping object. \var{filename} is
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the name of the database file, \var{rwmode} is \code{'r'}, \code{'w'},
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the name of the database file, \var{rwmode} is \code{'r'}, \code{'w'},
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\code{'c'}, or \code{'n'} for reader, writer (this also gives read
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\code{'c'}, or \code{'n'} for reader, writer (this also gives read
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access), create (writer, but create the database if it doesnt already
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access), create (writer, but create the database if it doesn't already
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exist) and newdb (which will always create a new database). Only one
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exist) and newdb (which will always create a new database). Only one
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writer may open a gdbm file and many readers may open the file. Readers
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writer may open a gdbm file and many readers may open the file. Readers
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and writers can not open the gdbm file at the same time. Note that the
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and writers cannot open the gdbm file at the same time. Note that the
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\code{GDBM_FAST} mode of opening the database is not supported. \var{filemode}
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\code{GDBM_FAST} mode of opening the database is not supported. \var{filemode}
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is the unix mode of the file, used only when a database is created.
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is the \UNIX\ mode of the file, used only when a database is created.
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\end{funcdesc}
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\end{funcdesc}
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@ -28,5 +28,5 @@ Return the group database entry for the given group name.
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\end{funcdesc}
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\end{funcdesc}
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\begin{funcdesc}{getgrall}{}
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\begin{funcdesc}{getgrall}{}
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Return a list of all available group entries entries, in arbitrary order.
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Return a list of all available group entries, in arbitrary order.
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\end{funcdesc}
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\end{funcdesc}
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@ -1,9 +1,9 @@
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\section{Built-in module \sectcode{imageop}}
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\section{Built-in module \sectcode{imageop}}
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\bimodindex{imageop}
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\bimodindex{imageop}
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The imageop module contains some useful operations on images.
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The \code{imageop} module contains some useful operations on images.
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It operates on images consisting of 8 or 32 bit pixels
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It operates on images consisting of 8 or 32 bit pixels
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stored in python strings. This is the same format as used
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stored in Python strings. This is the same format as used
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by \code{gl.lrectwrite} and the \code{imgfile} module.
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by \code{gl.lrectwrite} and the \code{imgfile} module.
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The module defines the following variables and functions:
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The module defines the following variables and functions:
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@ -17,20 +17,20 @@ per pixel, etc.
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\begin{funcdesc}{crop}{image\, psize\, width\, height\, x0\, y0\, x1\, y1}
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\begin{funcdesc}{crop}{image\, psize\, width\, height\, x0\, y0\, x1\, y1}
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This function takes the image in \code{image}, which should by
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This function takes the image in \var{image}, which should by
|
||||||
\code{width} by \code{height} in size and consist of pixels of
|
\var{width} by \var{height} in size and consist of pixels of
|
||||||
\code{psize} bytes, and returns the selected part of that image. \code{x0},
|
\var{psize} bytes, and returns the selected part of that image. \var{x0},
|
||||||
\code{y0}, \code{x1} and \code{y1} are like the \code{lrectread}
|
\var{y0}, \var{x1} and \var{y1} are like the \code{lrectread}
|
||||||
parameters, i.e. the boundary is included in the new image.
|
parameters, i.e. the boundary is included in the new image.
|
||||||
The new boundaries need not be inside the picture. Pixels that fall
|
The new boundaries need not be inside the picture. Pixels that fall
|
||||||
outside the old image will have their value set to zero.
|
outside the old image will have their value set to zero.
|
||||||
If \code{x0} is bigger than \code{x1} the new image is mirrored. The
|
If \var{x0} is bigger than \var{x1} the new image is mirrored. The
|
||||||
same holds for the y coordinates.
|
same holds for the y coordinates.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{scale}{image\, psize\, width\, height\, newwidth\, newheight}
|
\begin{funcdesc}{scale}{image\, psize\, width\, height\, newwidth\, newheight}
|
||||||
This function returns a \code{image} scaled to size \code{newwidth} by
|
This function returns an \var{image} scaled to size \var{newwidth} by
|
||||||
\code{newheight}. No interpolation is done, scaling is done by
|
\var{newheight}. No interpolation is done, scaling is done by
|
||||||
simple-minded pixel duplication or removal. Therefore, computer-generated
|
simple-minded pixel duplication or removal. Therefore, computer-generated
|
||||||
images or dithered images will not look nice after scaling.
|
images or dithered images will not look nice after scaling.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -57,7 +57,7 @@ monochrome image but it uses a (simple-minded) dithering algorithm.
|
||||||
\begin{funcdesc}{mono2grey}{image\, width\, height\, p0\, p1}
|
\begin{funcdesc}{mono2grey}{image\, width\, height\, p0\, p1}
|
||||||
This function converts a 1-bit monochrome image to an 8 bit greyscale
|
This function converts a 1-bit monochrome image to an 8 bit greyscale
|
||||||
or color image. All pixels that are zero-valued on input get value
|
or color image. All pixels that are zero-valued on input get value
|
||||||
\code{p0} on output and all one-value input pixels get value \code{p1}
|
\var{p0} on output and all one-value input pixels get value \var{p1}
|
||||||
on output. To convert a monochrome black-and-white image to greyscale
|
on output. To convert a monochrome black-and-white image to greyscale
|
||||||
pass the values \code{0} and \code{255} respectively.
|
pass the values \code{0} and \code{255} respectively.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -39,7 +39,8 @@ returned by \code{get_suffixes} describing the kind of file found.
|
||||||
Initialize the built-in module called \var{name} and return its module
|
Initialize the built-in module called \var{name} and return its module
|
||||||
object. If the module was already initialized, it will be initialized
|
object. If the module was already initialized, it will be initialized
|
||||||
{\em again}. A few modules cannot be initialized twice --- attempting
|
{\em again}. A few modules cannot be initialized twice --- attempting
|
||||||
to initialize these again will raise an exception. If there is no
|
to initialize these again will raise an \code{ImportError} exception.
|
||||||
|
If there is no
|
||||||
built-in module called \var{name}, \code{None} is returned.
|
built-in module called \var{name}, \code{None} is returned.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,19 +1,19 @@
|
||||||
\section{Built-in Module \sectcode{jpeg}}
|
\section{Built-in Module \sectcode{jpeg}}
|
||||||
\bimodindex{jpeg}
|
\bimodindex{jpeg}
|
||||||
|
|
||||||
The module jpeg provides access to the jpeg compressor and
|
The module \code{jpeg} provides access to the jpeg compressor and
|
||||||
decompressor written by the Independent JPEG Group. JPEG is a (draft?)
|
decompressor written by the Independent JPEG Group. JPEG is a (draft?)\
|
||||||
standard for compressing pictures. For details on jpeg or the
|
standard for compressing pictures. For details on jpeg or the
|
||||||
Independent JPEG Group software refer to the JPEG standard or the
|
Independent JPEG Group software refer to the JPEG standard or the
|
||||||
documentation provided with the software.
|
documentation provided with the software.
|
||||||
|
|
||||||
The jpeg module defines these functions:
|
The \code{jpeg} module defines these functions:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module jpeg)}
|
\renewcommand{\indexsubitem}{(in module jpeg)}
|
||||||
\begin{funcdesc}{compress}{data\, w\, h\, b}
|
\begin{funcdesc}{compress}{data\, w\, h\, b}
|
||||||
Treat data as a pixmap of width w and height h, with b bytes per
|
Treat data as a pixmap of width \var{w} and height \var{h}, with \var{b} bytes per
|
||||||
pixel. The data is in SGI GL order, so the first pixel is in the
|
pixel. The data is in SGI GL order, so the first pixel is in the
|
||||||
lower-left corner. This means that lrectread return data can
|
lower-left corner. This means that \code{lrectread} return data can
|
||||||
immedeately be passed to compress. Currently only 1 byte and 4 byte
|
immedeately be passed to compress. Currently only 1 byte and 4 byte
|
||||||
pixels are allowed, the former being treated as greyscale and the
|
pixels are allowed, the former being treated as greyscale and the
|
||||||
latter as RGB color. Compress returns a string that contains the
|
latter as RGB color. Compress returns a string that contains the
|
||||||
|
|
@ -24,28 +24,28 @@ compressed picture, in JFIF format.
|
||||||
Data is a string containing a picture in JFIF format. It returns a
|
Data is a string containing a picture in JFIF format. It returns a
|
||||||
tuple
|
tuple
|
||||||
\code{(\var{data}, \var{width}, \var{height}, \var{bytesperpixel})}.
|
\code{(\var{data}, \var{width}, \var{height}, \var{bytesperpixel})}.
|
||||||
Again, the data is suitable to pass to lrectwrite.
|
Again, the data is suitable to pass to \code{lrectwrite}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{setoption}{name\, value}
|
\begin{funcdesc}{setoption}{name\, value}
|
||||||
Set various options. Subsequent compress and decompress calls
|
Set various options. Subsequent compress and decompress calls
|
||||||
will use these options. The following options are available:
|
will use these options. The following options are available:
|
||||||
\begin{description}
|
\begin{description}
|
||||||
\item[\code{'forcegray'}]
|
\item[\code{'forcegray' }]
|
||||||
Force output to be grayscale, even if input is RGB.
|
Force output to be grayscale, even if input is RGB.
|
||||||
|
|
||||||
\item[\code{'quality'}]
|
\item[\code{'quality' }]
|
||||||
Set the quality of the compressed image to a
|
Set the quality of the compressed image to a
|
||||||
value between \code{0} and \code{100} (default is \code{75}). Compress only.
|
value between \code{0} and \code{100} (default is \code{75}). Compress only.
|
||||||
|
|
||||||
\item[\code{'optimize'}]
|
\item[\code{'optimize' }]
|
||||||
Perform Huffman table optimization. Takes longer, but results in
|
Perform Huffman table optimization. Takes longer, but results in
|
||||||
smaller compressed image. Compress only.
|
smaller compressed image. Compress only.
|
||||||
|
|
||||||
\item[\code{'smooth'}]
|
\item[\code{'smooth' }]
|
||||||
Perform inter-block smoothing on uncompressed image. Only useful for
|
Perform inter-block smoothing on uncompressed image. Only useful for
|
||||||
low-quality images. Decompress only.
|
low-quality images. Decompress only.
|
||||||
\end{description}
|
\end{description}
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
Compress and uncompress raise the error jpeg.error in case of errors.
|
Compress and uncompress raise the error \code{jpeg.error} in case of errors.
|
||||||
|
|
|
||||||
|
|
@ -3,7 +3,7 @@
|
||||||
|
|
||||||
This module implements the interface to RSA's MD5 message digest
|
This module implements the interface to RSA's MD5 message digest
|
||||||
algorithm (see also the file \file{md5.doc}). Its use is quite
|
algorithm (see also the file \file{md5.doc}). Its use is quite
|
||||||
straightforward: use the function \code{md5} to create an
|
straightforward:\ use the function \code{new} to create an
|
||||||
\dfn{md5}-object. You can now ``feed'' this object with arbitrary
|
\dfn{md5}-object. You can now ``feed'' this object with arbitrary
|
||||||
strings.
|
strings.
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -8,15 +8,15 @@ arithmetic routines. Only the interfaces to the \emph{integer}
|
||||||
otherwise, the description in the GNU MP documentation can be applied.
|
otherwise, the description in the GNU MP documentation can be applied.
|
||||||
|
|
||||||
In general, \dfn{mpz}-numbers can be used just like other standard
|
In general, \dfn{mpz}-numbers can be used just like other standard
|
||||||
Python numbers, e.g. you can use the built-in operators like \code{+},
|
Python numbers, e.g.\ you can use the built-in operators like \code{+},
|
||||||
\code{*}, etc., as well as the standard built-in functions like
|
\code{*}, etc., as well as the standard built-in functions like
|
||||||
\code{abs}, \code{int}, \ldots, \code{divmod}, \code{pow}.
|
\code{abs}, \code{int}, \ldots, \code{divmod}, \code{pow}.
|
||||||
\strong{Please note:} the {\it bitwise-xor} operation has been implemented as
|
\strong{Please note:} the {\it bitwise-xor} operation has been implemented as
|
||||||
a bunch of {\it and}s, {\it invert}s and {\it or}s, because the library
|
a bunch of {\it and}s, {\it invert}s and {\it or}s, because the library
|
||||||
lacks an \code{mpz_xor} function, and I didn't need one.
|
lacks an \code{mpz_xor} function, and I didn't need one.
|
||||||
|
|
||||||
You create an mpz-number, by calling the function called \code{mpz} (see
|
You create an mpz-number by calling the function called \code{mpz} (see
|
||||||
below for an excact description). An mpz-number is printed like this:
|
below for an exact description). An mpz-number is printed like this:
|
||||||
\code{mpz(\var{value})}.
|
\code{mpz(\var{value})}.
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module mpz)}
|
\renewcommand{\indexsubitem}{(in module mpz)}
|
||||||
|
|
@ -59,7 +59,7 @@ return mpz-numbers.
|
||||||
\begin{funcdesc}{divm}{numerator\, denominator\, modulus}
|
\begin{funcdesc}{divm}{numerator\, denominator\, modulus}
|
||||||
Returns a number \var{q}. such that
|
Returns a number \var{q}. such that
|
||||||
\code{\var{q} * \var{denominator} \%{} \var{modulus} == \var{numerator}}.
|
\code{\var{q} * \var{denominator} \%{} \var{modulus} == \var{numerator}}.
|
||||||
One could also implement this function in python, using \code{gcdext}.
|
One could also implement this function in Python, using \code{gcdext}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
An mpz-number has one method:
|
An mpz-number has one method:
|
||||||
|
|
@ -69,6 +69,6 @@ An mpz-number has one method:
|
||||||
Convert this mpz-number to a binary string, where the number has been
|
Convert this mpz-number to a binary string, where the number has been
|
||||||
stored as an array of radix-256 digits, least significant digit first.
|
stored as an array of radix-256 digits, least significant digit first.
|
||||||
|
|
||||||
The mpz-number must have a value greater than- or equal to zero,
|
The mpz-number must have a value greater than or equal to zero,
|
||||||
otherwise a \code{ValueError}-exception will be raised.
|
otherwise a \code{ValueError}-exception will be raised.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -9,7 +9,7 @@ When the optional built-in module \code{posix} is available, this
|
||||||
module exports the same functions and data as \code{posix}; otherwise,
|
module exports the same functions and data as \code{posix}; otherwise,
|
||||||
it searches for an OS dependent built-in module like \code{mac} and
|
it searches for an OS dependent built-in module like \code{mac} and
|
||||||
exports the same functions and data as found there. The design of all
|
exports the same functions and data as found there. The design of all
|
||||||
Python's built-in OS dependen modules is such that as long as the same
|
Python's built-in OS dependent modules is such that as long as the same
|
||||||
functionality is available, it uses the same interface; e.g., the
|
functionality is available, it uses the same interface; e.g., the
|
||||||
function \code{os.stat(\var{file})} returns stat info about a \var{file} in a
|
function \code{os.stat(\var{file})} returns stat info about a \var{file} in a
|
||||||
format compatible with the POSIX interface.
|
format compatible with the POSIX interface.
|
||||||
|
|
|
||||||
|
|
@ -8,7 +8,7 @@
|
||||||
\indexii{pickling}{objects}
|
\indexii{pickling}{objects}
|
||||||
|
|
||||||
The \code{pickle} module implements a basic but powerful algorithm for
|
The \code{pickle} module implements a basic but powerful algorithm for
|
||||||
``pickling'' (a.k.a. serializing, marshalling or flattening) nearly
|
``pickling'' (a.k.a.\ serializing, marshalling or flattening) nearly
|
||||||
arbitrary Python objects. This is a more primitive notion than
|
arbitrary Python objects. This is a more primitive notion than
|
||||||
persistency --- although \code{pickle} reads and writes file objects,
|
persistency --- although \code{pickle} reads and writes file objects,
|
||||||
it does not handle the issue of naming persistent objects, nor the
|
it does not handle the issue of naming persistent objects, nor the
|
||||||
|
|
@ -32,7 +32,7 @@ following correctly:
|
||||||
|
|
||||||
\item pointer sharing
|
\item pointer sharing
|
||||||
|
|
||||||
\item instances uf user-defined classes
|
\item instances of user-defined classes
|
||||||
|
|
||||||
\end{itemize}
|
\end{itemize}
|
||||||
|
|
||||||
|
|
@ -105,11 +105,11 @@ module.
|
||||||
\ttindex{__dict__}
|
\ttindex{__dict__}
|
||||||
|
|
||||||
Note that when class instances are pickled, their class's code and
|
Note that when class instances are pickled, their class's code and
|
||||||
data is not pickled along with them. Only the instance data is
|
data are not pickled along with them. Only the instance data are
|
||||||
pickled. This is done on purpose, so you can fix bugs in a class or
|
pickled. This is done on purpose, so you can fix bugs in a class or
|
||||||
add methods and still load objects that were created with an earlier
|
add methods and still load objects that were created with an earlier
|
||||||
version of the class. If you plan to have long-lived objects that
|
version of the class. If you plan to have long-lived objects that
|
||||||
will see many versions of a class, it may be worth to put a version
|
will see many versions of a class, it may be worthwhile to put a version
|
||||||
number in the objects so that suitable conversions can be made by the
|
number in the objects so that suitable conversions can be made by the
|
||||||
class's \code{__setstate__()} method.
|
class's \code{__setstate__()} method.
|
||||||
|
|
||||||
|
|
@ -157,7 +157,7 @@ the file argument.
|
||||||
|
|
||||||
It is possible to make multiple calls to \code{Pickler.dump()} or to
|
It is possible to make multiple calls to \code{Pickler.dump()} or to
|
||||||
\code{Unpickler.load()}, as long as there is a one-to-one
|
\code{Unpickler.load()}, as long as there is a one-to-one
|
||||||
correspondence between pickler and \code{Unpickler} objects and
|
correspondence between \code{Pickler} and \code{Unpickler} objects and
|
||||||
between \code{dump} and \code{load} calls for any pair of
|
between \code{dump} and \code{load} calls for any pair of
|
||||||
corresponding \code{Pickler} and \code{Unpicklers}. {\em Warning}:
|
corresponding \code{Pickler} and \code{Unpicklers}. {\em Warning}:
|
||||||
this is intended for pickling multiple objects without intervening
|
this is intended for pickling multiple objects without intervening
|
||||||
|
|
|
||||||
|
|
@ -3,7 +3,7 @@
|
||||||
\bimodindex{posix}
|
\bimodindex{posix}
|
||||||
|
|
||||||
This module provides access to operating system functionality that is
|
This module provides access to operating system functionality that is
|
||||||
standardized by the C Standard and the POSIX standard (a thinly diguised
|
standardized by the C Standard and the POSIX standard (a thinly disguised
|
||||||
\UNIX{} interface).
|
\UNIX{} interface).
|
||||||
It is available in all Python versions except on the Macintosh;
|
It is available in all Python versions except on the Macintosh;
|
||||||
the MS-DOS version does not support certain functions.
|
the MS-DOS version does not support certain functions.
|
||||||
|
|
@ -31,7 +31,7 @@ in C.
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(exception in module posix)}
|
\renewcommand{\indexsubitem}{(exception in module posix)}
|
||||||
\begin{excdesc}{error}
|
\begin{excdesc}{error}
|
||||||
This exception is raised when an POSIX function returns a
|
This exception is raised when a POSIX function returns a
|
||||||
POSIX-related error (e.g., not for illegal argument types). Its
|
POSIX-related error (e.g., not for illegal argument types). Its
|
||||||
string value is \code{'posix.error'}. The accompanying value is a
|
string value is \code{'posix.error'}. The accompanying value is a
|
||||||
pair containing the numeric error code from \code{errno} and the
|
pair containing the numeric error code from \code{errno} and the
|
||||||
|
|
@ -279,7 +279,7 @@ systems without symbolic links, this always raises
|
||||||
\begin{funcdesc}{system}{command}
|
\begin{funcdesc}{system}{command}
|
||||||
Execute the command (a string) in a subshell. This is implemented by
|
Execute the command (a string) in a subshell. This is implemented by
|
||||||
calling the Standard C function \code{system()}, and has the same
|
calling the Standard C function \code{system()}, and has the same
|
||||||
limitations. Changes to \code{posix.environ}, \code{sys.stdin} etc. are
|
limitations. Changes to \code{posix.environ}, \code{sys.stdin} etc.\ are
|
||||||
not reflected in the environment of the executed command. The return
|
not reflected in the environment of the executed command. The return
|
||||||
value is the exit status of the process as returned by Standard C
|
value is the exit status of the process as returned by Standard C
|
||||||
\code{system()}.
|
\code{system()}.
|
||||||
|
|
@ -302,7 +302,7 @@ Return a 5-tuple containing information identifying the current
|
||||||
operating system. The tuple contains 5 strings:
|
operating system. The tuple contains 5 strings:
|
||||||
\code{(\var{sysname}, \var{nodename}, \var{release}, \var{version}, \var{machine})}.
|
\code{(\var{sysname}, \var{nodename}, \var{release}, \var{version}, \var{machine})}.
|
||||||
Some systems truncate the nodename to 8
|
Some systems truncate the nodename to 8
|
||||||
characters or to the leading component; an better way to get the
|
characters or to the leading component; a better way to get the
|
||||||
hostname is \code{socket.gethostname()}. (Not on MS-DOS, nor on older
|
hostname is \code{socket.gethostname()}. (Not on MS-DOS, nor on older
|
||||||
\UNIX{} systems.)
|
\UNIX{} systems.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -48,13 +48,13 @@ Return true if \var{p} is an absolute pathname (begins with a slash).
|
||||||
|
|
||||||
\begin{funcdesc}{isfile}{p}
|
\begin{funcdesc}{isfile}{p}
|
||||||
Return true if \var{p} is an existing regular file. This follows
|
Return true if \var{p} is an existing regular file. This follows
|
||||||
symbolic links, so both islink() and isfile() can be true for the same
|
symbolic links, so both \code{islink()} and \code{isfile()} can be true for the same
|
||||||
path.
|
path.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{isdir}{p}
|
\begin{funcdesc}{isdir}{p}
|
||||||
Return true if \var{p} is an existing directory. This follows
|
Return true if \var{p} is an existing directory. This follows
|
||||||
symbolic links, so both islink() and isdir() can be true for the same
|
symbolic links, so both \code{islink()} and \code{isdir()} can be true for the same
|
||||||
path.
|
path.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -109,7 +109,7 @@ everything leading up to that. If \var{p} ends in a slash (except if
|
||||||
it is the root), the trailing slash is removed and the operation
|
it is the root), the trailing slash is removed and the operation
|
||||||
applied to the result; otherwise, \code{join(\var{head}, \var{tail})} equals
|
applied to the result; otherwise, \code{join(\var{head}, \var{tail})} equals
|
||||||
\var{p}. The \var{tail} part never contains a slash. Some boundary
|
\var{p}. The \var{tail} part never contains a slash. Some boundary
|
||||||
cases: if \var{p} is the root, \var{head} equals \var{p} and
|
cases:\ if \var{p} is the root, \var{head} equals \var{p} and
|
||||||
\var{tail} is empty; if \var{p} is empty, both \var{head} and
|
\var{tail} is empty; if \var{p} is empty, both \var{head} and
|
||||||
\var{tail} are empty; if \var{p} contains no slash, \var{head} is
|
\var{tail} are empty; if \var{p} contains no slash, \var{head} is
|
||||||
empty and \var{tail} equals \var{p}.
|
empty and \var{tail} equals \var{p}.
|
||||||
|
|
|
||||||
|
|
@ -1,7 +1,7 @@
|
||||||
\section{Standard Module \sectcode{rand}}
|
\section{Standard Module \sectcode{rand}}
|
||||||
|
|
||||||
\stmodindex{rand} This module implements a pseudo-random number
|
\stmodindex{rand} This module implements a pseudo-random number
|
||||||
generator with an interface similar to \code{rand()} in C. It defines
|
generator with an interface similar to \code{rand()} in C\@. It defines
|
||||||
the following functions:
|
the following functions:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module rand)}
|
\renewcommand{\indexsubitem}{(in module rand)}
|
||||||
|
|
|
||||||
|
|
@ -22,7 +22,7 @@ are currently supported.
|
||||||
|
|
||||||
\begin{funcdesc}{longimagedata}{file}
|
\begin{funcdesc}{longimagedata}{file}
|
||||||
This function reads and decodes the image on the specified file, and
|
This function reads and decodes the image on the specified file, and
|
||||||
returns it as a python string. The string has 4 byte RGBA pixels.
|
returns it as a Python string. The string has 4 byte RGBA pixels.
|
||||||
The bottom left pixel is the first in
|
The bottom left pixel is the first in
|
||||||
the string. This format is suitable to pass to \code{gl.lrectwrite},
|
the string. This format is suitable to pass to \code{gl.lrectwrite},
|
||||||
for instance.
|
for instance.
|
||||||
|
|
@ -41,5 +41,5 @@ These are the formats returned by \code{gl.lrectread}.
|
||||||
This function sets a global flag which defines whether the scan lines
|
This function sets a global flag which defines whether the scan lines
|
||||||
of the image are read or written from bottom to top (flag is zero,
|
of the image are read or written from bottom to top (flag is zero,
|
||||||
compatible with SGI GL) or from top to bottom(flag is one,
|
compatible with SGI GL) or from top to bottom(flag is one,
|
||||||
compatible with X). The default is zero.
|
compatible with X)\@. The default is zero.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -25,7 +25,7 @@ The available functions in this module are:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module rotor)}
|
\renewcommand{\indexsubitem}{(in module rotor)}
|
||||||
\begin{funcdesc}{newrotor}{key\optional{\, numrotors}}
|
\begin{funcdesc}{newrotor}{key\optional{\, numrotors}}
|
||||||
Returns a rotor object. \var{key} is a string containing the encryption key
|
Return a rotor object. \var{key} is a string containing the encryption key
|
||||||
for the object; it can contain arbitrary binary data. The key will be used
|
for the object; it can contain arbitrary binary data. The key will be used
|
||||||
to randomly generate the rotor permutations and their initial positions.
|
to randomly generate the rotor permutations and their initial positions.
|
||||||
\var{numrotors} is the number of rotor permutations in the returned object;
|
\var{numrotors} is the number of rotor permutations in the returned object;
|
||||||
|
|
@ -36,28 +36,28 @@ Rotor objects have the following methods:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(rotor method)}
|
\renewcommand{\indexsubitem}{(rotor method)}
|
||||||
\begin{funcdesc}{setkey}{}
|
\begin{funcdesc}{setkey}{}
|
||||||
Resets the rotor to its initial state.
|
Reset the rotor to its initial state.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{encrypt}{plaintext}
|
\begin{funcdesc}{encrypt}{plaintext}
|
||||||
Resets the rotor object to its initial state and encrypts \var{plaintext},
|
Reset the rotor object to its initial state and encrypt \var{plaintext},
|
||||||
returning a string containing the ciphertext. The ciphertext is always the
|
returning a string containing the ciphertext. The ciphertext is always the
|
||||||
same length as the original plaintext.
|
same length as the original plaintext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{encryptmore}{plaintext}
|
\begin{funcdesc}{encryptmore}{plaintext}
|
||||||
Encrypts \var{plaintext} without resetting the rotor object, and returns a
|
Encrypt \var{plaintext} without resetting the rotor object, and return a
|
||||||
string containing the ciphertext.
|
string containing the ciphertext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{decrypt}{ciphertext}
|
\begin{funcdesc}{decrypt}{ciphertext}
|
||||||
Resets the rotor object to its initial state and decrypts \var{ciphertext},
|
Reset the rotor object to its initial state and decrypt \var{ciphertext},
|
||||||
returning a string containing the ciphertext. The plaintext string will
|
returning a string containing the ciphertext. The plaintext string will
|
||||||
always be the same length as the ciphertext.
|
always be the same length as the ciphertext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{decryptmore}{ciphertext}
|
\begin{funcdesc}{decryptmore}{ciphertext}
|
||||||
Decrypts \var{ciphertext} without resetting the rotor object, and returns a
|
Decrypt \var{ciphertext} without resetting the rotor object, and return a
|
||||||
string containing the ciphertext.
|
string containing the ciphertext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -12,20 +12,20 @@ it is explicitly reset (i.e. Python uses the BSD style interface).
|
||||||
|
|
||||||
\item
|
\item
|
||||||
There is no way to ``block'' signals temporarily from critical
|
There is no way to ``block'' signals temporarily from critical
|
||||||
sections (since this is not supported by all Unix flavors).
|
sections (since this is not supported by all \UNIX{} flavors).
|
||||||
|
|
||||||
\item
|
\item
|
||||||
Although Python signal handlers are called asynchronously as far as
|
Although Python signal handlers are called asynchronously as far as
|
||||||
the Python user is concerned, they can only occur between the
|
the Python user is concerned, they can only occur between the
|
||||||
``atomic'' instructions of the Python interpreter. This means that
|
``atomic'' instructions of the Python interpreter. This means that
|
||||||
signals arriving during long calculations implemented purely in C
|
signals arriving during long calculations implemented purely in C
|
||||||
(e.g. regular expression matches on large bodies of text) may be
|
(e.g.\ regular expression matches on large bodies of text) may be
|
||||||
delayed for an arbitrary time.
|
delayed for an arbitrary time.
|
||||||
|
|
||||||
\item
|
\item
|
||||||
When a signal arrives during an I/O operation, it is possible that the
|
When a signal arrives during an I/O operation, it is possible that the
|
||||||
I/O operation raises an exception after the signal handler returns.
|
I/O operation raises an exception after the signal handler returns.
|
||||||
This is dependent on the underlying Unix system's semantics regarding
|
This is dependent on the underlying \UNIX{} system's semantics regarding
|
||||||
interrupted system calls.
|
interrupted system calls.
|
||||||
|
|
||||||
\item
|
\item
|
||||||
|
|
@ -44,8 +44,8 @@ overridden.
|
||||||
\item
|
\item
|
||||||
Some care must be taken if both signals and threads are used in the
|
Some care must be taken if both signals and threads are used in the
|
||||||
same program. The fundamental thing to remember in using signals and
|
same program. The fundamental thing to remember in using signals and
|
||||||
threads simultaneously is: always perform \code{signal()} operations
|
threads simultaneously is:\ always perform \code{signal()} operations
|
||||||
in the main thread of execution. Any thread can perform a
|
in the main thread of execution. Any thread can perform an
|
||||||
\code{alarm()}, \code{getsignal()}, or \code{pause()}; only the main
|
\code{alarm()}, \code{getsignal()}, or \code{pause()}; only the main
|
||||||
thread can set a new signal handler, and the main thread will be the
|
thread can set a new signal handler, and the main thread will be the
|
||||||
only one to receive signals. This means that signals can't be used as
|
only one to receive signals. This means that signals can't be used as
|
||||||
|
|
@ -73,7 +73,7 @@ The variables defined in the signal module are:
|
||||||
hangup signal is defined as \code{signal.SIGHUP}; the variable names
|
hangup signal is defined as \code{signal.SIGHUP}; the variable names
|
||||||
are identical to the names used in C programs, as found in
|
are identical to the names used in C programs, as found in
|
||||||
\file{signal.h}.
|
\file{signal.h}.
|
||||||
The UNIX man page for \file{signal} lists the existing signals (on
|
The \UNIX{} man page for \file{signal} lists the existing signals (on
|
||||||
some systems this is \file{signal(2)}, on others the list is in
|
some systems this is \file{signal(2)}, on others the list is in
|
||||||
\file{signal(7)}).
|
\file{signal(7)}).
|
||||||
Note that not all systems define the same set of signal names; only
|
Note that not all systems define the same set of signal names; only
|
||||||
|
|
@ -89,18 +89,18 @@ The signal module defines the following functions:
|
||||||
\begin{funcdesc}{alarm}{time}
|
\begin{funcdesc}{alarm}{time}
|
||||||
If \var{time} is non-zero, this function requests that a
|
If \var{time} is non-zero, this function requests that a
|
||||||
\code{SIGALRM} signal be sent to the process in \var{time} seconds.
|
\code{SIGALRM} signal be sent to the process in \var{time} seconds.
|
||||||
Any previously scheduled alarm is canceled (i.e. only one alarm can
|
Any previously scheduled alarm is canceled (i.e.\ only one alarm can
|
||||||
be scheduled at any time). The returned value is then the number of
|
be scheduled at any time). The returned value is then the number of
|
||||||
seconds before any previously set alarm was to have been delivered.
|
seconds before any previously set alarm was to have been delivered.
|
||||||
If \var{time} is zero, no alarm id scheduled, and any scheduled
|
If \var{time} is zero, no alarm id scheduled, and any scheduled
|
||||||
alarm is canceled. The return value is the number of seconds
|
alarm is canceled. The return value is the number of seconds
|
||||||
remaining before a previously scheduled alarm. If the return value
|
remaining before a previously scheduled alarm. If the return value
|
||||||
is zero, no alarm is currently scheduled. (See the UNIX man page
|
is zero, no alarm is currently scheduled. (See the \UNIX{} man page
|
||||||
\code{alarm(2)}.)
|
\code{alarm(2)}.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{getsignal}{signalnum}
|
\begin{funcdesc}{getsignal}{signalnum}
|
||||||
Returns the current signal handler for the signal \var{signalnum}.
|
Return the current signal handler for the signal \var{signalnum}.
|
||||||
The returned value may be a callable Python object, or one of the
|
The returned value may be a callable Python object, or one of the
|
||||||
special values \code{signal.SIG_IGN}, \code{signal.SIG_DFL} or
|
special values \code{signal.SIG_IGN}, \code{signal.SIG_DFL} or
|
||||||
\code{None}. Here, \code{signal.SIG_IGN} means that the signal was
|
\code{None}. Here, \code{signal.SIG_IGN} means that the signal was
|
||||||
|
|
@ -110,20 +110,20 @@ The signal module defines the following functions:
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{pause}{}
|
\begin{funcdesc}{pause}{}
|
||||||
Causes the process to sleep until a signal is received; the
|
Cause the process to sleep until a signal is received; the
|
||||||
appropriate handler will then be called. Returns nothing. (See the
|
appropriate handler will then be called. Returns nothing. (See the
|
||||||
UNIX man page \code{signal(2)}.)
|
\UNIX{} man page \code{signal(2)}.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{signal}{signalnum\, handler}
|
\begin{funcdesc}{signal}{signalnum\, handler}
|
||||||
Sets the handler for signal \var{signalnum} to the function
|
Set the handler for signal \var{signalnum} to the function
|
||||||
\var{handler}. \var{handler} can be any callable Python object, or
|
\var{handler}. \var{handler} can be any callable Python object, or
|
||||||
one of the special values \code{signal.SIG_IGN} or
|
one of the special values \code{signal.SIG_IGN} or
|
||||||
\code{signal.SIG_DFL}. The previous signal handler will be returned
|
\code{signal.SIG_DFL}. The previous signal handler will be returned
|
||||||
(see the description of \code{getsignal()} above). (See the UNIX
|
(see the description of \code{getsignal()} above). (See the \UNIX{}
|
||||||
man page \code{signal(2)}.)
|
man page \code{signal(2)}.)
|
||||||
|
|
||||||
When threads are enabled, this function can only be called from the
|
When threads are enabled, this function can only be called from the
|
||||||
main thread; attempting to call it from other threads will cause a
|
main thread; attempting to call it from other threads will cause a
|
||||||
\code{ValueError} exception will be raised.
|
\code{ValueError} exception to be raised.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -10,7 +10,7 @@ Tutorial}, by Stuart Sechrest and \emph{An Advanced 4.3BSD Interprocess
|
||||||
Communication Tutorial}, by Samuel J. Leffler et al, both in the
|
Communication Tutorial}, by Samuel J. Leffler et al, both in the
|
||||||
\UNIX{} Programmer's Manual, Supplementary Documents 1 (sections PS1:7
|
\UNIX{} Programmer's Manual, Supplementary Documents 1 (sections PS1:7
|
||||||
and PS1:8). The \UNIX{} manual pages for the various socket-related
|
and PS1:8). The \UNIX{} manual pages for the various socket-related
|
||||||
system calls also a valuable source of information on the details of
|
system calls are also a valuable source of information on the details of
|
||||||
socket semantics.
|
socket semantics.
|
||||||
|
|
||||||
The Python interface is a straightforward transliteration of the
|
The Python interface is a straightforward transliteration of the
|
||||||
|
|
@ -77,11 +77,11 @@ used for the second argument to \code{socket()}.
|
||||||
\dataline{IPPORT_*}
|
\dataline{IPPORT_*}
|
||||||
\dataline{INADDR_*}
|
\dataline{INADDR_*}
|
||||||
\dataline{IP_*}
|
\dataline{IP_*}
|
||||||
Many constants of these forms, documented in the Unix documentation on
|
Many constants of these forms, documented in the \UNIX{} documentation on
|
||||||
sockets and/or the IP protocol, are also defined in the socket module.
|
sockets and/or the IP protocol, are also defined in the socket module.
|
||||||
They are generally used in arguments to the \code{setsockopt} and
|
They are generally used in arguments to the \code{setsockopt} and
|
||||||
\code{getsockopt} methods of socket objects. In most cases, only
|
\code{getsockopt} methods of socket objects. In most cases, only
|
||||||
those symbols that are defined in the Unix header files are defined;
|
those symbols that are defined in the \UNIX{} header files are defined;
|
||||||
for a few symbols, default values are provided.
|
for a few symbols, default values are provided.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -113,7 +113,7 @@ for that service. The protocol name should be \code{'tcp'} or
|
||||||
\code{'udp'}.
|
\code{'udp'}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{socket}{family\, type\, proto}
|
\begin{funcdesc}{socket}{family\, type\optional{\, proto}}
|
||||||
Create a new socket using the given address family, socket type and
|
Create a new socket using the given address family, socket type and
|
||||||
protocol number. The address family should be \code{AF_INET} or
|
protocol number. The address family should be \code{AF_INET} or
|
||||||
\code{AF_UNIX}. The socket type should be \code{SOCK_STREAM},
|
\code{AF_UNIX}. The socket type should be \code{SOCK_STREAM},
|
||||||
|
|
@ -121,7 +121,7 @@ protocol number. The address family should be \code{AF_INET} or
|
||||||
The protocol number is usually zero and may be omitted in that case.
|
The protocol number is usually zero and may be omitted in that case.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{fromfd}{fd\, family\, type\, proto}
|
\begin{funcdesc}{fromfd}{fd\, family\, type\optional{\, proto}}
|
||||||
Build a socket object from an existing file descriptor (an integer as
|
Build a socket object from an existing file descriptor (an integer as
|
||||||
returned by a file object's \code{fileno} method). Address family,
|
returned by a file object's \code{fileno} method). Address family,
|
||||||
socket type and protocol number are as for the \code{socket} function
|
socket type and protocol number are as for the \code{socket} function
|
||||||
|
|
@ -129,7 +129,7 @@ above. The file descriptor should refer to a socket, but this is not
|
||||||
checked --- subsequent operations on the object may fail if the file
|
checked --- subsequent operations on the object may fail if the file
|
||||||
descriptor is invalid. This function is rarely needed, but can be
|
descriptor is invalid. This function is rarely needed, but can be
|
||||||
used to get or set socket options on a socket passed to a program as
|
used to get or set socket options on a socket passed to a program as
|
||||||
standard input or output (e.g. a server started by the \UNIX{} inet
|
standard input or output (e.g.\ a server started by the \UNIX{} inet
|
||||||
daemon).
|
daemon).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -185,7 +185,7 @@ number of an IP socket, for instance.
|
||||||
see above.)
|
see above.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{getsockopt}{level\, optname\, buflen}
|
\begin{funcdesc}{getsockopt}{level\, optname\optional{\, buflen}}
|
||||||
Return the value of the given socket option (see the \UNIX{} man page
|
Return the value of the given socket option (see the \UNIX{} man page
|
||||||
{\it getsockopt}(2)). The needed symbolic constants are defined in
|
{\it getsockopt}(2)). The needed symbolic constants are defined in
|
||||||
the \code{socket} module (\code{SO_*} etc.). If the optional third
|
the \code{socket} module (\code{SO_*} etc.). If the optional third
|
||||||
|
|
@ -211,7 +211,7 @@ descriptor, so the file object and socket object may be closed or
|
||||||
garbage-collected independently.
|
garbage-collected independently.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{recv}{bufsize\, flags}
|
\begin{funcdesc}{recv}{bufsize\optional{\, flags}}
|
||||||
Receive data from the socket. The return value is a string representing
|
Receive data from the socket. The return value is a string representing
|
||||||
the data received. The maximum amount of data to be received
|
the data received. The maximum amount of data to be received
|
||||||
at once is specified by \var{bufsize}. See the \UNIX{} manual page
|
at once is specified by \var{bufsize}. See the \UNIX{} manual page
|
||||||
|
|
@ -271,7 +271,7 @@ Note that there are no methods \code{read()} or \code{write()}; use
|
||||||
\subsection{Example}
|
\subsection{Example}
|
||||||
\nodename{Socket Example}
|
\nodename{Socket Example}
|
||||||
|
|
||||||
Here are two minimal example programs using the TCP/IP protocol: a
|
Here are two minimal example programs using the TCP/IP protocol:\ a
|
||||||
server that echoes all data that it receives back (servicing only one
|
server that echoes all data that it receives back (servicing only one
|
||||||
client), and a client using it. Note that a server must perform the
|
client), and a client using it. Note that a server must perform the
|
||||||
sequence \code{socket}, \code{bind}, \code{listen}, \code{accept}
|
sequence \code{socket}, \code{bind}, \code{listen}, \code{accept}
|
||||||
|
|
|
||||||
|
|
@ -72,7 +72,7 @@ or more digits, optionally preceded by a sign (\samp{+} or \samp{-}).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{expandtabs}{s\, tabsize}
|
\begin{funcdesc}{expandtabs}{s\, tabsize}
|
||||||
Expand tabs in a string, i.e. replace them by one or more spaces,
|
Expand tabs in a string, i.e.\ replace them by one or more spaces,
|
||||||
depending on the current column and the given tab size. The column
|
depending on the current column and the given tab size. The column
|
||||||
number is reset to zero after each newline occurring in the string.
|
number is reset to zero after each newline occurring in the string.
|
||||||
This doesn't understand other non-printing characters or escape
|
This doesn't understand other non-printing characters or escape
|
||||||
|
|
@ -88,7 +88,7 @@ negative, \code{len(\var{s})} is added.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{rfind}{s\, sub\optional{\, start}}
|
\begin{funcdesc}{rfind}{s\, sub\optional{\, start}}
|
||||||
Like \code{find} but finds the highest index.
|
Like \code{find} but find the highest index.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{index}{s\, sub\optional{\, start}}
|
\begin{funcdesc}{index}{s\, sub\optional{\, start}}
|
||||||
|
|
@ -101,7 +101,7 @@ Like \code{rfind} but raise \code{ValueError} when the substring is
|
||||||
not found.
|
not found.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{count}{s\, sub\, i}
|
\begin{funcdesc}{count}{s\, sub\optional{\, i}}
|
||||||
Return the number of (non-overlapping) occurrences of substring
|
Return the number of (non-overlapping) occurrences of substring
|
||||||
\var{sub} in string \var{s} with index at least \var{i}.
|
\var{sub} in string \var{s} with index at least \var{i}.
|
||||||
If \var{i} is omitted, it defaults to \code{0}.
|
If \var{i} is omitted, it defaults to \code{0}.
|
||||||
|
|
@ -112,12 +112,12 @@ Convert letters to lower case.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{split}{s}
|
\begin{funcdesc}{split}{s}
|
||||||
Returns a list of the whitespace-delimited words of the string
|
Return a list of the whitespace-delimited words of the string
|
||||||
\var{s}.
|
\var{s}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{splitfields}{s\, sep}
|
\begin{funcdesc}{splitfields}{s\, sep}
|
||||||
Returns a list containing the fields of the string \var{s}, using
|
Return a list containing the fields of the string \var{s}, using
|
||||||
the string \var{sep} as a separator. The list will have one more
|
the string \var{sep} as a separator. The list will have one more
|
||||||
items than the number of non-overlapping occurrences of the
|
items than the number of non-overlapping occurrences of the
|
||||||
separator in the string. Thus, \code{string.splitfields(\var{s}, '
|
separator in the string. Thus, \code{string.splitfields(\var{s}, '
|
||||||
|
|
@ -139,12 +139,12 @@ equals \var{t}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{strip}{s}
|
\begin{funcdesc}{strip}{s}
|
||||||
Removes leading and trailing whitespace from the string
|
Remove leading and trailing whitespace from the string
|
||||||
\var{s}.
|
\var{s}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{swapcase}{s}
|
\begin{funcdesc}{swapcase}{s}
|
||||||
Converts lower case letters to upper case and vice versa.
|
Convert lower case letters to upper case and vice versa.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{upper}{s}
|
\begin{funcdesc}{upper}{s}
|
||||||
|
|
|
||||||
|
|
@ -5,8 +5,8 @@
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module tempfile)}
|
\renewcommand{\indexsubitem}{(in module tempfile)}
|
||||||
|
|
||||||
This module generates temporary file names. It is not UNIX specific,
|
This module generates temporary file names. It is not \UNIX{} specific,
|
||||||
but it may require some help on non-UNIX systems.
|
but it may require some help on non-\UNIX{} systems.
|
||||||
|
|
||||||
Note: the modules does not create temporary files, nor does it
|
Note: the modules does not create temporary files, nor does it
|
||||||
automatically remove them when the current process exits or dies.
|
automatically remove them when the current process exits or dies.
|
||||||
|
|
@ -27,7 +27,7 @@ are initialized at the first call to \code{mktemp()}.
|
||||||
When set to a value other than \code{None}, this variable defines the
|
When set to a value other than \code{None}, this variable defines the
|
||||||
directory in which filenames returned by \code{mktemp()} reside. The
|
directory in which filenames returned by \code{mktemp()} reside. The
|
||||||
default is taken from the environment variable \code{TMPDIR}; if this
|
default is taken from the environment variable \code{TMPDIR}; if this
|
||||||
is not set, either \code{/usr/tmp} is used (on UNIX), or the current
|
is not set, either \code{/usr/tmp} is used (on \UNIX{}), or the current
|
||||||
working directory (all other systems). No check is made to see
|
working directory (all other systems). No check is made to see
|
||||||
whether its value is valid.
|
whether its value is valid.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
@ -38,11 +38,11 @@ When set to a value other than \code{None}, this variable defines the
|
||||||
prefix of the final component of the filenames returned by
|
prefix of the final component of the filenames returned by
|
||||||
\code{mktemp()}. A string of decimal digits is added to generate
|
\code{mktemp()}. A string of decimal digits is added to generate
|
||||||
unique filenames. The default is either ``\code{@\var{pid}.}'' where
|
unique filenames. The default is either ``\code{@\var{pid}.}'' where
|
||||||
\var{pid} is the current process ID (on UNIX), or ``\code{tmp}'' (all
|
\var{pid} is the current process ID (on \UNIX{}), or ``\code{tmp}'' (all
|
||||||
other systems).
|
other systems).
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
Warning: if a UNIX process uses \code{mktemp()}, then calls
|
Warning: if a \UNIX{} process uses \code{mktemp()}, then calls
|
||||||
\code{fork()} and both parent and child continue to use
|
\code{fork()} and both parent and child continue to use
|
||||||
\code{mktemp()}, the processes will generate conflicting temporary
|
\code{mktemp()}, the processes will generate conflicting temporary
|
||||||
names. To resolve this, the child process should assign \code{None}
|
names. To resolve this, the child process should assign \code{None}
|
||||||
|
|
|
||||||
|
|
@ -2,14 +2,14 @@
|
||||||
\bimodindex{thread}
|
\bimodindex{thread}
|
||||||
|
|
||||||
This module provides low-level primitives for working with multiple
|
This module provides low-level primitives for working with multiple
|
||||||
threads (a.k.a. \dfn{light-weight processes} or \dfn{tasks}) --- multiple
|
threads (a.k.a.\ \dfn{light-weight processes} or \dfn{tasks}) --- multiple
|
||||||
threads of control sharing their global data space. For
|
threads of control sharing their global data space. For
|
||||||
synchronization, simple locks (a.k.a. \dfn{mutexes} or \dfn{binary
|
synchronization, simple locks (a.k.a.\ \dfn{mutexes} or \dfn{binary
|
||||||
semaphores}) are provided.
|
semaphores}) are provided.
|
||||||
|
|
||||||
The module is optional and supported on SGI IRIX 4.x and 5.x and Sun
|
The module is optional and supported on SGI IRIX 4.x and 5.x and Sun
|
||||||
Solaris 2.x systems, as well as on systems that have a PTHREAD
|
Solaris 2.x systems, as well as on systems that have a PTHREAD
|
||||||
implementation (e.g. KSR).
|
implementation (e.g.\ KSR).
|
||||||
|
|
||||||
It defines the following constant and functions:
|
It defines the following constant and functions:
|
||||||
|
|
||||||
|
|
@ -21,7 +21,7 @@ Raised on thread-specific errors.
|
||||||
\begin{funcdesc}{start_new_thread}{func\, arg}
|
\begin{funcdesc}{start_new_thread}{func\, arg}
|
||||||
Start a new thread. The thread executes the function \var{func}
|
Start a new thread. The thread executes the function \var{func}
|
||||||
with the argument list \var{arg} (which must be a tuple). When the
|
with the argument list \var{arg} (which must be a tuple). When the
|
||||||
function returns, the thread silently exits. When the function raises
|
function returns, the thread silently exits. When the function
|
||||||
terminates with an unhandled exception, a stack trace is printed and
|
terminates with an unhandled exception, a stack trace is printed and
|
||||||
then the thread exits (but other threads continue to run).
|
then the thread exits (but other threads continue to run).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -59,7 +59,7 @@ Without the optional argument, this method acquires the lock
|
||||||
unconditionally, if necessary waiting until it is released by another
|
unconditionally, if necessary waiting until it is released by another
|
||||||
thread (only one thread at a time can acquire a lock --- that's their
|
thread (only one thread at a time can acquire a lock --- that's their
|
||||||
reason for existence), and returns \code{None}. If the integer
|
reason for existence), and returns \code{None}. If the integer
|
||||||
\var{waitflag} argument is present, the action depends on its value:
|
\var{waitflag} argument is present, the action depends on its value:\
|
||||||
if it is zero, the lock is only acquired if it can be acquired
|
if it is zero, the lock is only acquired if it can be acquired
|
||||||
immediately without waiting, while if it is nonzero, the lock is
|
immediately without waiting, while if it is nonzero, the lock is
|
||||||
acquired unconditionally as before. If an argument is present, the
|
acquired unconditionally as before. If an argument is present, the
|
||||||
|
|
@ -72,7 +72,7 @@ necessarily by the same thread.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{locked}{}
|
\begin{funcdesc}{locked}{}
|
||||||
Return the status of the lock: 1 if it has been acquired by some
|
Return the status of the lock:\ 1 if it has been acquired by some
|
||||||
thread, 0 if not.
|
thread, 0 if not.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,5 +1,5 @@
|
||||||
\chapter{UNIX ONLY}
|
\chapter{UNIX ONLY}
|
||||||
|
|
||||||
The modules described in this chapter provide interfaces to features
|
The modules described in this chapter provide interfaces to features
|
||||||
that are unique to the UNIX operating system, or in some cases to
|
that are unique to the \UNIX{} operating system, or in some cases to
|
||||||
some or many variants of it.
|
some or many variants of it.
|
||||||
|
|
|
||||||
|
|
@ -11,14 +11,14 @@ The sampling rate or frame rate is the number of times per second the
|
||||||
sound is sampled. The number of channels indicate if the audio is
|
sound is sampled. The number of channels indicate if the audio is
|
||||||
mono, stereo, or quadro. Each frame consists of one sample per
|
mono, stereo, or quadro. Each frame consists of one sample per
|
||||||
channel. The sample size is the size in bytes of each sample. Thus a
|
channel. The sample size is the size in bytes of each sample. Thus a
|
||||||
frame consists of nchannels*framesize bytes, and a second's worth of
|
frame consists of \var{nchannels}*\var{framesize} bytes, and a second's worth of
|
||||||
audio consists of nchannels*framesize*framerate bytes.
|
audio consists of \var{nchannels}*\var{framesize}*\var{framerate} bytes.
|
||||||
|
|
||||||
Module \code{aifc} defines the following function:
|
Module \code{aifc} defines the following function:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module aifc)}
|
\renewcommand{\indexsubitem}{(in module aifc)}
|
||||||
\begin{funcdesc}{open}{file\, mode}
|
\begin{funcdesc}{open}{file\, mode}
|
||||||
Opens an AIFF or AIFF-C file and returns an object instance with
|
Open an AIFF or AIFF-C file and return an object instance with
|
||||||
methods that are described below. The argument file is either a
|
methods that are described below. The argument file is either a
|
||||||
string naming a file or a file object. The mode is either the string
|
string naming a file or a file object. The mode is either the string
|
||||||
'r' when the file must be opened for reading, or 'w' when the file
|
'r' when the file must be opened for reading, or 'w' when the file
|
||||||
|
|
@ -75,7 +75,7 @@ the given id.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{readframes}{nframes}
|
\begin{funcdesc}{readframes}{nframes}
|
||||||
Read and return the next nframes frames from the audio file. The
|
Read and return the next \var{nframes} frames from the audio file. The
|
||||||
returned data is a string containing for each frame the uncompressed
|
returned data is a string containing for each frame the uncompressed
|
||||||
samples of all channels.
|
samples of all channels.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -175,6 +175,6 @@ not updated.
|
||||||
|
|
||||||
\begin{funcdesc}{close}{}
|
\begin{funcdesc}{close}{}
|
||||||
Close the AIFF file. The header of the file is updated to reflect the
|
Close the AIFF file. The header of the file is updated to reflect the
|
||||||
actual size of the audio data After calling this method, the object
|
actual size of the audio data. After calling this method, the object
|
||||||
can no longer be used.
|
can no longer be used.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -1,8 +1,8 @@
|
||||||
\section{Built-in module \sectcode{audioop}}
|
\section{Built-in module \sectcode{audioop}}
|
||||||
\bimodindex{audioop}
|
\bimodindex{audioop}
|
||||||
|
|
||||||
The audioop module contains some useful operations on sound fragments.
|
The \code{audioop} module contains some useful operations on sound fragments.
|
||||||
It operates on sound fragments consisting of signed integer samples of
|
It operates on sound fragments consisting of signed integer samples
|
||||||
8, 16 or 32 bits wide, stored in Python strings. This is the same
|
8, 16 or 32 bits wide, stored in Python strings. This is the same
|
||||||
format as used by the \code{al} and \code{sunaudiodev} modules. All
|
format as used by the \code{al} and \code{sunaudiodev} modules. All
|
||||||
scalar items are integers, unless specified otherwise.
|
scalar items are integers, unless specified otherwise.
|
||||||
|
|
@ -19,7 +19,7 @@ per sample, etc.
|
||||||
\end{excdesc}
|
\end{excdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{add}{fragment1\, fragment2\, width}
|
\begin{funcdesc}{add}{fragment1\, fragment2\, width}
|
||||||
This function returns a fragment that is the addition of the two samples
|
This function returns a fragment which is the addition of the two samples
|
||||||
passed as parameters. \var{width} is the sample width in bytes, either
|
passed as parameters. \var{width} is the sample width in bytes, either
|
||||||
\code{1}, \code{2} or \code{4}. Both fragments should have the same length.
|
\code{1}, \code{2} or \code{4}. Both fragments should have the same length.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -60,8 +60,8 @@ passed as an argument.
|
||||||
\begin{funcdesc}{findfactor}{fragment\, reference}
|
\begin{funcdesc}{findfactor}{fragment\, reference}
|
||||||
This routine (which only accepts 2-byte sample fragments) calculates a
|
This routine (which only accepts 2-byte sample fragments) calculates a
|
||||||
factor \var{F} such that \code{rms(add(fragment, mul(reference, -F)))}
|
factor \var{F} such that \code{rms(add(fragment, mul(reference, -F)))}
|
||||||
is minimal, i.e. it calculates the factor with which you should
|
is minimal, i.e.\ it calculates the factor with which you should
|
||||||
multiply \var{reference} to make it match as good as possible to
|
multiply \var{reference} to make it match as well as possible to
|
||||||
\var{fragment}. The fragments should be the same size.
|
\var{fragment}. The fragments should be the same size.
|
||||||
|
|
||||||
The time taken by this routine is proportional to \code{len(fragment)}.
|
The time taken by this routine is proportional to \code{len(fragment)}.
|
||||||
|
|
@ -69,7 +69,7 @@ The time taken by this routine is proportional to \code{len(fragment)}.
|
||||||
|
|
||||||
\begin{funcdesc}{findfit}{fragment\, reference}
|
\begin{funcdesc}{findfit}{fragment\, reference}
|
||||||
This routine (which only accepts 2-byte sample fragments) tries to
|
This routine (which only accepts 2-byte sample fragments) tries to
|
||||||
match \var{reference} as good as possible to a portion of
|
match \var{reference} as well as possible to a portion of
|
||||||
\var{fragment} (which should be the longer fragment). It
|
\var{fragment} (which should be the longer fragment). It
|
||||||
(conceptually) does this by taking slices out of \var{fragment}, using
|
(conceptually) does this by taking slices out of \var{fragment}, using
|
||||||
\code{findfactor} to compute the best match, and minimizing the
|
\code{findfactor} to compute the best match, and minimizing the
|
||||||
|
|
@ -81,8 +81,8 @@ and \var{factor} the floating-point factor as per \code{findfactor}.
|
||||||
|
|
||||||
\begin{funcdesc}{findmax}{fragment\, length}
|
\begin{funcdesc}{findmax}{fragment\, length}
|
||||||
This routine (which only accepts 2-byte sample fragments) searches
|
This routine (which only accepts 2-byte sample fragments) searches
|
||||||
\var{fragment} for a slice of length \var{length} samples (not bytes!)
|
\var{fragment} for a slice of length \var{length} samples (not bytes!)\
|
||||||
with maximum energy, i.e. it returns \var{i} for which
|
with maximum energy, i.e.\ it returns \var{i} for which
|
||||||
\code{rms(fragment[i*2:(i+length)*2])} is maximal.
|
\code{rms(fragment[i*2:(i+length)*2])} is maximal.
|
||||||
|
|
||||||
The routine takes time proportional to \code{len(fragment)}.
|
The routine takes time proportional to \code{len(fragment)}.
|
||||||
|
|
@ -140,7 +140,7 @@ This function returns the maximum peak-peak value in the sound fragment.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{mul}{fragment\, width\, factor}
|
\begin{funcdesc}{mul}{fragment\, width\, factor}
|
||||||
Mul returns a fragment that has all samples in the original framgent
|
Return a fragment that has all samples in the original framgent
|
||||||
multiplied by the floating-point value \var{factor}. Overflow is
|
multiplied by the floating-point value \var{factor}. Overflow is
|
||||||
silently ignored.
|
silently ignored.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -150,25 +150,6 @@ This function reverses the samples in a fragment and returns the
|
||||||
modified fragment.
|
modified fragment.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{tomono}{fragment\, width\, lfactor\, rfactor}
|
|
||||||
This function converts a stereo fragment to a mono fragment. The left
|
|
||||||
channel is multiplied by \var{lfactor} and the right channel by
|
|
||||||
\var{rfactor} before adding the two channels to give a mono signal.
|
|
||||||
\end{funcdesc}
|
|
||||||
|
|
||||||
\begin{funcdesc}{tostereo}{fragment\, width\, lfactor\, rfactor}
|
|
||||||
This function generates a stereo fragment from a mono fragment. Each
|
|
||||||
pair of samples in the stereo fragment are computed from the mono
|
|
||||||
sample, whereby left channel samples are multiplied by \var{lfactor}
|
|
||||||
and right channel samples by \var{rfactor}.
|
|
||||||
\end{funcdesc}
|
|
||||||
|
|
||||||
\begin{funcdesc}{mul}{fragment\, width\, factor}
|
|
||||||
Mul returns a fragment that has all samples in the original framgent
|
|
||||||
multiplied by the floating-point value \var{factor}. Overflow is
|
|
||||||
silently ignored.
|
|
||||||
\end{funcdesc}
|
|
||||||
|
|
||||||
\begin{funcdesc}{rms}{fragment\, width\, factor}
|
\begin{funcdesc}{rms}{fragment\, width\, factor}
|
||||||
Returns the root-mean-square of the fragment, i.e.
|
Returns the root-mean-square of the fragment, i.e.
|
||||||
\iftexi
|
\iftexi
|
||||||
|
|
@ -184,6 +165,19 @@ divided by the sumber of samples.
|
||||||
This is a measure of the power in an audio signal.
|
This is a measure of the power in an audio signal.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
\begin{funcdesc}{tomono}{fragment\, width\, lfactor\, rfactor}
|
||||||
|
This function converts a stereo fragment to a mono fragment. The left
|
||||||
|
channel is multiplied by \var{lfactor} and the right channel by
|
||||||
|
\var{rfactor} before adding the two channels to give a mono signal.
|
||||||
|
\end{funcdesc}
|
||||||
|
|
||||||
|
\begin{funcdesc}{tostereo}{fragment\, width\, lfactor\, rfactor}
|
||||||
|
This function generates a stereo fragment from a mono fragment. Each
|
||||||
|
pair of samples in the stereo fragment are computed from the mono
|
||||||
|
sample, whereby left channel samples are multiplied by \var{lfactor}
|
||||||
|
and right channel samples by \var{rfactor}.
|
||||||
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{ulaw2lin}{fragment\, width}
|
\begin{funcdesc}{ulaw2lin}{fragment\, width}
|
||||||
This function converts sound fragments in ULAW encoding to linearly
|
This function converts sound fragments in ULAW encoding to linearly
|
||||||
encoded sound fragments. ULAW encoding always uses 8 bits samples, so
|
encoded sound fragments. ULAW encoding always uses 8 bits samples, so
|
||||||
|
|
@ -191,7 +185,7 @@ encoded sound fragments. ULAW encoding always uses 8 bits samples, so
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
Note that operations such as \code{mul} or \code{max} make no
|
Note that operations such as \code{mul} or \code{max} make no
|
||||||
distinction between mono and stereo fragments, i.e. all samples are
|
distinction between mono and stereo fragments, i.e.\ all samples are
|
||||||
treated equal. If this is a problem the stereo fragment should be split
|
treated equal. If this is a problem the stereo fragment should be split
|
||||||
into two mono fragments first and recombined later. Here is an example
|
into two mono fragments first and recombined later. Here is an example
|
||||||
of how to do that:
|
of how to do that:
|
||||||
|
|
@ -207,10 +201,10 @@ def mul_stereo(sample, width, lfactor, rfactor):
|
||||||
\end{verbatim}\ecode
|
\end{verbatim}\ecode
|
||||||
|
|
||||||
If you use the ADPCM coder to build network packets and you want your
|
If you use the ADPCM coder to build network packets and you want your
|
||||||
protocol to be stateless (i.e. to be able to tolerate packet loss)
|
protocol to be stateless (i.e.\ to be able to tolerate packet loss)
|
||||||
you should not only transmit the data but also the state. Note that
|
you should not only transmit the data but also the state. Note that
|
||||||
you should send the \var{initial} state (the one you passed to
|
you should send the \var{initial} state (the one you passed to
|
||||||
lin2adpcm) along to the decoder, not the final state (as returned by
|
\code{lin2adpcm}) along to the decoder, not the final state (as returned by
|
||||||
the coder). If you want to use \code{struct} to store the state in
|
the coder). If you want to use \code{struct} to store the state in
|
||||||
binary you can code the first element (the predicted value) in 16 bits
|
binary you can code the first element (the predicted value) in 16 bits
|
||||||
and the second (the delta index) in 8.
|
and the second (the delta index) in 8.
|
||||||
|
|
|
||||||
|
|
@ -44,7 +44,7 @@ Recursive objects (compound objects that, directly or indirectly,
|
||||||
contain a reference to themselves) may cause a recursive loop.
|
contain a reference to themselves) may cause a recursive loop.
|
||||||
|
|
||||||
\item
|
\item
|
||||||
Because deep copy copies {\em everything} it may copy too much, e.g.
|
Because deep copy copies {\em everything} it may copy too much, e.g.\
|
||||||
administrative data structures that should be shared even between
|
administrative data structures that should be shared even between
|
||||||
copies.
|
copies.
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -30,14 +30,14 @@ Bits in the status as returned by \var{Status}.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{available}{}
|
\begin{funcdesc}{available}{}
|
||||||
Returns 1 if the communication toolbox is available, zero otherwise.
|
Return 1 if the communication toolbox is available, zero otherwise.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{CMNew}{name\, sizes}
|
\begin{funcdesc}{CMNew}{name\, sizes}
|
||||||
Create a connection object using the connection tool named
|
Create a connection object using the connection tool named
|
||||||
\var{name}. \var{sizes} is a 6-tuple given buffer sizes for data in,
|
\var{name}. \var{sizes} is a 6-tuple given buffer sizes for data in,
|
||||||
data out, control in, control out, attention in and attention out.
|
data out, control in, control out, attention in and attention out.
|
||||||
Alternatively, passing \var{None} will result in default buffer sizes.
|
Alternatively, passing \code{None} will result in default buffer sizes.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\subsection{connection object}
|
\subsection{connection object}
|
||||||
|
|
@ -47,14 +47,14 @@ of \code{-1} is indefinite, meaning that the command runs to completion.
|
||||||
\renewcommand{\indexsubitem}{(connection object method)}
|
\renewcommand{\indexsubitem}{(connection object method)}
|
||||||
|
|
||||||
\begin{datadesc}{callback}
|
\begin{datadesc}{callback}
|
||||||
If this member is set to a value other than \var{None} it should point
|
If this member is set to a value other than \code{None} it should point
|
||||||
to a function accepting a single argument (the connection
|
to a function accepting a single argument (the connection
|
||||||
object). This will make all connection object methods work
|
object). This will make all connection object methods work
|
||||||
asynchronously, with the callback routine being called upon
|
asynchronously, with the callback routine being called upon
|
||||||
completion.
|
completion.
|
||||||
|
|
||||||
{\em Note:} for reasons beyond my understanding the callback routine
|
{\em Note:} for reasons beyond my understanding the callback routine
|
||||||
is never called currently. You are advised against using asynchronous
|
is currently never called. You are advised against using asynchronous
|
||||||
calls for the time being.
|
calls for the time being.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -76,15 +76,15 @@ Accept (when \var{yesno} is non-zero) or reject an incoming call after
|
||||||
|
|
||||||
\begin{funcdesc}{Close}{timeout\, now}
|
\begin{funcdesc}{Close}{timeout\, now}
|
||||||
Close a connection. When \var{now} is zero, the close is orderly
|
Close a connection. When \var{now} is zero, the close is orderly
|
||||||
(i.e. outstanding output is flushed, etc) with a timeout of
|
(i.e.\ outstanding output is flushed, etc.)\ with a timeout of
|
||||||
\var{timeout} seconds. When \var{now} is non-zero the close is
|
\var{timeout} seconds. When \var{now} is non-zero the close is
|
||||||
immedeate, discarding output.
|
immediate, discarding output.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Read}{len\, chan\, timeout}
|
\begin{funcdesc}{Read}{len\, chan\, timeout}
|
||||||
Read \var{len} bytes or until \var{timeout} seconds have passed from
|
Read \var{len} bytes, or until \var{timeout} seconds have passed, from
|
||||||
the channel \var{chan} (which is one of \var{cmData}, \var{cmCntl} or
|
the channel \var{chan} (which is one of \var{cmData}, \var{cmCntl} or
|
||||||
\var{cmAttn}). Returns a 2-tuple: the data read and the end-of-message
|
\var{cmAttn}). Return a 2-tuple:\ the data read and the end-of-message
|
||||||
flag.
|
flag.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -97,8 +97,8 @@ the number of bytes written.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Status}{}
|
\begin{funcdesc}{Status}{}
|
||||||
Return connection status as the 2-tuple \code{(sizes,
|
Return connection status as the 2-tuple \code{(\var{sizes},
|
||||||
flags)}. \var{Sizes} is a 6-tuple giving the actual buffer sizes used
|
\var{flags})}. \var{sizes} is a 6-tuple giving the actual buffer sizes used
|
||||||
(see \var{CMNew}), \var{flags} is a set of bits describing the state
|
(see \var{CMNew}), \var{flags} is a set of bits describing the state
|
||||||
of the connection.
|
of the connection.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -19,6 +19,6 @@ raised for general mapping errors like specifying an incorrect key.
|
||||||
Open a dbm database and return a mapping object. \var{filename} is
|
Open a dbm database and return a mapping object. \var{filename} is
|
||||||
the name of the database file (without the \file{.dir} or \file{.pag}
|
the name of the database file (without the \file{.dir} or \file{.pag}
|
||||||
extensions), \var{rwmode} is \code{'r'}, \code{'w'} or \code{'rw'} as for
|
extensions), \var{rwmode} is \code{'r'}, \code{'w'} or \code{'rw'} as for
|
||||||
\code{open}, and \var{filemode} is the unix mode of the file, used only
|
\code{open}, and \var{filemode} is the \UNIX{} mode of the file, used only
|
||||||
when the database has to be created.
|
when the database has to be created.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -1,11 +1,11 @@
|
||||||
% Manual text by Jaap Vermeulen
|
% Manual text by Jaap Vermeulen
|
||||||
\section{Built-in module \sectcode{fcntl}}
|
\section{Built-in module \sectcode{fcntl}}
|
||||||
\bimodindex{fcntl}
|
\bimodindex{fcntl}
|
||||||
\indexii{UNIX}{file control}
|
\indexii{\UNIX{}}{file control}
|
||||||
\indexii{UNIX}{IO control}
|
\indexii{\UNIX{}}{I/O control}
|
||||||
|
|
||||||
This module performs file control and IO control on file descriptors.
|
This module performs file control and I/O control on file descriptors.
|
||||||
It is an interface to the \dfn{fcntl()} and \dfn{ioctl()} \UNIX routines.
|
It is an interface to the \dfn{fcntl()} and \dfn{ioctl()} \UNIX{} routines.
|
||||||
File descriptors can be obtained with the \dfn{fileno()} method of a
|
File descriptors can be obtained with the \dfn{fileno()} method of a
|
||||||
file or socket object.
|
file or socket object.
|
||||||
|
|
||||||
|
|
@ -23,10 +23,10 @@ The module defines the following functions:
|
||||||
the argument missing or an integer value, the return value of this
|
the argument missing or an integer value, the return value of this
|
||||||
function is the integer return value of the real \code{fcntl()}
|
function is the integer return value of the real \code{fcntl()}
|
||||||
call. When the argument is a string it represents a binary
|
call. When the argument is a string it represents a binary
|
||||||
structure, e.g. created by \code{struct.pack()}. The binary data is
|
structure, e.g.\ created by \code{struct.pack()}. The binary data is
|
||||||
copied to a buffer whose address is passed to the real \code{fcntl()}
|
copied to a buffer whose address is passed to the real \code{fcntl()}
|
||||||
call. The return value after a successful call is the contents of
|
call. The return value after a successful call is the contents of
|
||||||
the buffer, converted to a string object. In the case the
|
the buffer, converted to a string object. In case the
|
||||||
\code{fcntl()} fails, an \code{IOError} will be raised.
|
\code{fcntl()} fails, an \code{IOError} will be raised.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -405,7 +405,7 @@ returns \code{('a', 'b', 'c')} and \code{tuple([1, 2, 3])} returns
|
||||||
\end{verbatim}\ecode
|
\end{verbatim}\ecode
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{vars}{}
|
\begin{funcdesc}{vars}{\optional{object}}
|
||||||
Without arguments, return a dictionary corresponding to the current
|
Without arguments, return a dictionary corresponding to the current
|
||||||
local symbol table. With a module, class or class instance object as
|
local symbol table. With a module, class or class instance object as
|
||||||
argument (or anything else that has a \code{__dict__} attribute),
|
argument (or anything else that has a \code{__dict__} attribute),
|
||||||
|
|
|
||||||
|
|
@ -21,10 +21,10 @@ raised for general mapping errors like specifying an incorrect key.
|
||||||
Open a gdbm database and return a mapping object. \var{filename} is
|
Open a gdbm database and return a mapping object. \var{filename} is
|
||||||
the name of the database file, \var{rwmode} is \code{'r'}, \code{'w'},
|
the name of the database file, \var{rwmode} is \code{'r'}, \code{'w'},
|
||||||
\code{'c'}, or \code{'n'} for reader, writer (this also gives read
|
\code{'c'}, or \code{'n'} for reader, writer (this also gives read
|
||||||
access), create (writer, but create the database if it doesnt already
|
access), create (writer, but create the database if it doesn't already
|
||||||
exist) and newdb (which will always create a new database). Only one
|
exist) and newdb (which will always create a new database). Only one
|
||||||
writer may open a gdbm file and many readers may open the file. Readers
|
writer may open a gdbm file and many readers may open the file. Readers
|
||||||
and writers can not open the gdbm file at the same time. Note that the
|
and writers cannot open the gdbm file at the same time. Note that the
|
||||||
\code{GDBM_FAST} mode of opening the database is not supported. \var{filemode}
|
\code{GDBM_FAST} mode of opening the database is not supported. \var{filemode}
|
||||||
is the unix mode of the file, used only when a database is created.
|
is the \UNIX\ mode of the file, used only when a database is created.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -28,5 +28,5 @@ Return the group database entry for the given group name.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{getgrall}{}
|
\begin{funcdesc}{getgrall}{}
|
||||||
Return a list of all available group entries entries, in arbitrary order.
|
Return a list of all available group entries, in arbitrary order.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -1,9 +1,9 @@
|
||||||
\section{Built-in module \sectcode{imageop}}
|
\section{Built-in module \sectcode{imageop}}
|
||||||
\bimodindex{imageop}
|
\bimodindex{imageop}
|
||||||
|
|
||||||
The imageop module contains some useful operations on images.
|
The \code{imageop} module contains some useful operations on images.
|
||||||
It operates on images consisting of 8 or 32 bit pixels
|
It operates on images consisting of 8 or 32 bit pixels
|
||||||
stored in python strings. This is the same format as used
|
stored in Python strings. This is the same format as used
|
||||||
by \code{gl.lrectwrite} and the \code{imgfile} module.
|
by \code{gl.lrectwrite} and the \code{imgfile} module.
|
||||||
|
|
||||||
The module defines the following variables and functions:
|
The module defines the following variables and functions:
|
||||||
|
|
@ -17,20 +17,20 @@ per pixel, etc.
|
||||||
|
|
||||||
|
|
||||||
\begin{funcdesc}{crop}{image\, psize\, width\, height\, x0\, y0\, x1\, y1}
|
\begin{funcdesc}{crop}{image\, psize\, width\, height\, x0\, y0\, x1\, y1}
|
||||||
This function takes the image in \code{image}, which should by
|
This function takes the image in \var{image}, which should by
|
||||||
\code{width} by \code{height} in size and consist of pixels of
|
\var{width} by \var{height} in size and consist of pixels of
|
||||||
\code{psize} bytes, and returns the selected part of that image. \code{x0},
|
\var{psize} bytes, and returns the selected part of that image. \var{x0},
|
||||||
\code{y0}, \code{x1} and \code{y1} are like the \code{lrectread}
|
\var{y0}, \var{x1} and \var{y1} are like the \code{lrectread}
|
||||||
parameters, i.e. the boundary is included in the new image.
|
parameters, i.e. the boundary is included in the new image.
|
||||||
The new boundaries need not be inside the picture. Pixels that fall
|
The new boundaries need not be inside the picture. Pixels that fall
|
||||||
outside the old image will have their value set to zero.
|
outside the old image will have their value set to zero.
|
||||||
If \code{x0} is bigger than \code{x1} the new image is mirrored. The
|
If \var{x0} is bigger than \var{x1} the new image is mirrored. The
|
||||||
same holds for the y coordinates.
|
same holds for the y coordinates.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{scale}{image\, psize\, width\, height\, newwidth\, newheight}
|
\begin{funcdesc}{scale}{image\, psize\, width\, height\, newwidth\, newheight}
|
||||||
This function returns a \code{image} scaled to size \code{newwidth} by
|
This function returns an \var{image} scaled to size \var{newwidth} by
|
||||||
\code{newheight}. No interpolation is done, scaling is done by
|
\var{newheight}. No interpolation is done, scaling is done by
|
||||||
simple-minded pixel duplication or removal. Therefore, computer-generated
|
simple-minded pixel duplication or removal. Therefore, computer-generated
|
||||||
images or dithered images will not look nice after scaling.
|
images or dithered images will not look nice after scaling.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -57,7 +57,7 @@ monochrome image but it uses a (simple-minded) dithering algorithm.
|
||||||
\begin{funcdesc}{mono2grey}{image\, width\, height\, p0\, p1}
|
\begin{funcdesc}{mono2grey}{image\, width\, height\, p0\, p1}
|
||||||
This function converts a 1-bit monochrome image to an 8 bit greyscale
|
This function converts a 1-bit monochrome image to an 8 bit greyscale
|
||||||
or color image. All pixels that are zero-valued on input get value
|
or color image. All pixels that are zero-valued on input get value
|
||||||
\code{p0} on output and all one-value input pixels get value \code{p1}
|
\var{p0} on output and all one-value input pixels get value \var{p1}
|
||||||
on output. To convert a monochrome black-and-white image to greyscale
|
on output. To convert a monochrome black-and-white image to greyscale
|
||||||
pass the values \code{0} and \code{255} respectively.
|
pass the values \code{0} and \code{255} respectively.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -39,7 +39,8 @@ returned by \code{get_suffixes} describing the kind of file found.
|
||||||
Initialize the built-in module called \var{name} and return its module
|
Initialize the built-in module called \var{name} and return its module
|
||||||
object. If the module was already initialized, it will be initialized
|
object. If the module was already initialized, it will be initialized
|
||||||
{\em again}. A few modules cannot be initialized twice --- attempting
|
{\em again}. A few modules cannot be initialized twice --- attempting
|
||||||
to initialize these again will raise an exception. If there is no
|
to initialize these again will raise an \code{ImportError} exception.
|
||||||
|
If there is no
|
||||||
built-in module called \var{name}, \code{None} is returned.
|
built-in module called \var{name}, \code{None} is returned.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,19 +1,19 @@
|
||||||
\section{Built-in Module \sectcode{jpeg}}
|
\section{Built-in Module \sectcode{jpeg}}
|
||||||
\bimodindex{jpeg}
|
\bimodindex{jpeg}
|
||||||
|
|
||||||
The module jpeg provides access to the jpeg compressor and
|
The module \code{jpeg} provides access to the jpeg compressor and
|
||||||
decompressor written by the Independent JPEG Group. JPEG is a (draft?)
|
decompressor written by the Independent JPEG Group. JPEG is a (draft?)\
|
||||||
standard for compressing pictures. For details on jpeg or the
|
standard for compressing pictures. For details on jpeg or the
|
||||||
Independent JPEG Group software refer to the JPEG standard or the
|
Independent JPEG Group software refer to the JPEG standard or the
|
||||||
documentation provided with the software.
|
documentation provided with the software.
|
||||||
|
|
||||||
The jpeg module defines these functions:
|
The \code{jpeg} module defines these functions:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module jpeg)}
|
\renewcommand{\indexsubitem}{(in module jpeg)}
|
||||||
\begin{funcdesc}{compress}{data\, w\, h\, b}
|
\begin{funcdesc}{compress}{data\, w\, h\, b}
|
||||||
Treat data as a pixmap of width w and height h, with b bytes per
|
Treat data as a pixmap of width \var{w} and height \var{h}, with \var{b} bytes per
|
||||||
pixel. The data is in SGI GL order, so the first pixel is in the
|
pixel. The data is in SGI GL order, so the first pixel is in the
|
||||||
lower-left corner. This means that lrectread return data can
|
lower-left corner. This means that \code{lrectread} return data can
|
||||||
immedeately be passed to compress. Currently only 1 byte and 4 byte
|
immedeately be passed to compress. Currently only 1 byte and 4 byte
|
||||||
pixels are allowed, the former being treated as greyscale and the
|
pixels are allowed, the former being treated as greyscale and the
|
||||||
latter as RGB color. Compress returns a string that contains the
|
latter as RGB color. Compress returns a string that contains the
|
||||||
|
|
@ -24,28 +24,28 @@ compressed picture, in JFIF format.
|
||||||
Data is a string containing a picture in JFIF format. It returns a
|
Data is a string containing a picture in JFIF format. It returns a
|
||||||
tuple
|
tuple
|
||||||
\code{(\var{data}, \var{width}, \var{height}, \var{bytesperpixel})}.
|
\code{(\var{data}, \var{width}, \var{height}, \var{bytesperpixel})}.
|
||||||
Again, the data is suitable to pass to lrectwrite.
|
Again, the data is suitable to pass to \code{lrectwrite}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{setoption}{name\, value}
|
\begin{funcdesc}{setoption}{name\, value}
|
||||||
Set various options. Subsequent compress and decompress calls
|
Set various options. Subsequent compress and decompress calls
|
||||||
will use these options. The following options are available:
|
will use these options. The following options are available:
|
||||||
\begin{description}
|
\begin{description}
|
||||||
\item[\code{'forcegray'}]
|
\item[\code{'forcegray' }]
|
||||||
Force output to be grayscale, even if input is RGB.
|
Force output to be grayscale, even if input is RGB.
|
||||||
|
|
||||||
\item[\code{'quality'}]
|
\item[\code{'quality' }]
|
||||||
Set the quality of the compressed image to a
|
Set the quality of the compressed image to a
|
||||||
value between \code{0} and \code{100} (default is \code{75}). Compress only.
|
value between \code{0} and \code{100} (default is \code{75}). Compress only.
|
||||||
|
|
||||||
\item[\code{'optimize'}]
|
\item[\code{'optimize' }]
|
||||||
Perform Huffman table optimization. Takes longer, but results in
|
Perform Huffman table optimization. Takes longer, but results in
|
||||||
smaller compressed image. Compress only.
|
smaller compressed image. Compress only.
|
||||||
|
|
||||||
\item[\code{'smooth'}]
|
\item[\code{'smooth' }]
|
||||||
Perform inter-block smoothing on uncompressed image. Only useful for
|
Perform inter-block smoothing on uncompressed image. Only useful for
|
||||||
low-quality images. Decompress only.
|
low-quality images. Decompress only.
|
||||||
\end{description}
|
\end{description}
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
Compress and uncompress raise the error jpeg.error in case of errors.
|
Compress and uncompress raise the error \code{jpeg.error} in case of errors.
|
||||||
|
|
|
||||||
|
|
@ -23,13 +23,13 @@ etc).
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{copen}{}
|
\begin{funcdesc}{copen}{}
|
||||||
Open a new console window. Returns a console window object.
|
Open a new console window. Return a console window object.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{fopen}{fp}
|
\begin{funcdesc}{fopen}{fp}
|
||||||
Return the console window object corresponding with the given file
|
Return the console window object corresponding with the given file
|
||||||
object. \var{Fp} should be one of \var{sys.stdin}, \var{sys.stdout} or
|
object. \var{fp} should be one of \code{sys.stdin}, \code{sys.stdout} or
|
||||||
\var{sys.stderr}.
|
\code{sys.stderr}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\subsection{macconsole options object}
|
\subsection{macconsole options object}
|
||||||
|
|
@ -57,8 +57,7 @@ The title of the window.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{datadesc}{pause_atexit}
|
\begin{datadesc}{pause_atexit}
|
||||||
If set non-zero, the window will wait for user action before closing
|
If set non-zero, the window will wait for user action before closing.
|
||||||
the window.
|
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\subsection{console window object}
|
\subsection{console window object}
|
||||||
|
|
@ -88,13 +87,13 @@ Clear to end-of-line.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{inverse}{onoff}
|
\begin{funcdesc}{inverse}{onoff}
|
||||||
Enable inverse-video mode: characters with the high bit set are
|
Enable inverse-video mode:\ characters with the high bit set are
|
||||||
displayed in inverse video (this disables the upper half of a
|
displayed in inverse video (this disables the upper half of a
|
||||||
non-ascii character set).
|
non-\ASCII{} character set).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{gotoxy}{x\, y}
|
\begin{funcdesc}{gotoxy}{x\, y}
|
||||||
Set the cursor to position \code{(x, y)}.
|
Set the cursor to position \code{(\var{x}, \var{y})}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{hide}{}
|
\begin{funcdesc}{hide}{}
|
||||||
|
|
|
||||||
|
|
@ -7,9 +7,9 @@ This module provides access to macintosh FSSpec handling, the Alias
|
||||||
Manager, finder aliases and the Standard File package.
|
Manager, finder aliases and the Standard File package.
|
||||||
|
|
||||||
Whenever a function or method expects a \var{file} argument, this
|
Whenever a function or method expects a \var{file} argument, this
|
||||||
argument can be one of three things: (1) a full or partial macintosh
|
argument can be one of three things:\ (1) a full or partial Macintosh
|
||||||
pathname, (2) an FSSpec object or (3) a 3-tuple \code{(wdRefNum,
|
pathname, (2) an FSSpec object or (3) a 3-tuple \code{(wdRefNum,
|
||||||
parID, name)} as described in Inside Mac VI. A description of aliases
|
parID, name)} as described in Inside Mac VI\@. A description of aliases
|
||||||
and the standard file package can also be found there.
|
and the standard file package can also be found there.
|
||||||
|
|
||||||
\begin{funcdesc}{FSSpec}{file}
|
\begin{funcdesc}{FSSpec}{file}
|
||||||
|
|
@ -26,15 +26,15 @@ Create an Alias object given the raw data for the alias.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{ResolveAliasFile}{file}
|
\begin{funcdesc}{ResolveAliasFile}{file}
|
||||||
Resolve an alias file. Returns a 3-tuple \code{(fsspec, isfolder,
|
Resolve an alias file. Returns a 3-tuple \code{(\var{fsspec}, \var{isfolder},
|
||||||
aliased)} where \var{fsspec} is the resulting FSSpec object,
|
\var{aliased})} where \var{fsspec} is the resulting FSSpec object,
|
||||||
\var{isfolder} is true if \var{fsspec} points to a folder and
|
\var{isfolder} is true if \var{fsspec} points to a folder and
|
||||||
\var{aliased} is true if the file was an alias in the first place
|
\var{aliased} is true if the file was an alias in the first place
|
||||||
(otherwise the FSSpec object for the file itself is returned).
|
(otherwise the FSSpec object for the file itself is returned).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{StandardGetFile}{\optional{type\, ...}}
|
\begin{funcdesc}{StandardGetFile}{\optional{type\, ...}}
|
||||||
Present the user with a standard ``open onput file''
|
Present the user with a standard ``open input file''
|
||||||
dialog. Optionally, you can pass up to four 4-char file types to limit
|
dialog. Optionally, you can pass up to four 4-char file types to limit
|
||||||
the files the user can choose from. The function returns an FSSpec
|
the files the user can choose from. The function returns an FSSpec
|
||||||
object and a flag indicating that the user completed the dialog
|
object and a flag indicating that the user completed the dialog
|
||||||
|
|
@ -44,14 +44,14 @@ without cancelling.
|
||||||
\begin{funcdesc}{StandardPutFile}{prompt\, \optional{default}}
|
\begin{funcdesc}{StandardPutFile}{prompt\, \optional{default}}
|
||||||
Present the user with a standard ``open output file''
|
Present the user with a standard ``open output file''
|
||||||
dialog. \var{prompt} is the prompt string, and the optional
|
dialog. \var{prompt} is the prompt string, and the optional
|
||||||
\var{default} argument initialized the output file name. The function
|
\var{default} argument initializes the output file name. The function
|
||||||
returns an FSSpec object and a flag indicating that the user completed
|
returns an FSSpec object and a flag indicating that the user completed
|
||||||
the dialog without cancelling.
|
the dialog without cancelling.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{GetDirectory}{}
|
\begin{funcdesc}{GetDirectory}{}
|
||||||
Present the user with a non-standard ``select a directory''
|
Present the user with a non-standard ``select a directory''
|
||||||
dialog. Returns an FSSpec object and a success-indicator.
|
dialog. Return an FSSpec object and a success-indicator.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\subsection{FSSpec objects}
|
\subsection{FSSpec objects}
|
||||||
|
|
@ -67,13 +67,13 @@ Return the full pathname of the file described by the FSSpec object.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{as_tuple}{}
|
\begin{funcdesc}{as_tuple}{}
|
||||||
Return the \code{(wdRefNum, parID, name)} tuple of the file described
|
Return the \code{(\var{wdRefNum}, \var{parID}, \var{name})} tuple of the file described
|
||||||
by the FSSpec object.
|
by the FSSpec object.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{NewAlias}{\optional{file}}
|
\begin{funcdesc}{NewAlias}{\optional{file}}
|
||||||
Create an Alias object pointing to the file described by this
|
Create an Alias object pointing to the file described by this
|
||||||
FSSpec. If the optional \code{file} parameter is present the alias
|
FSSpec. If the optional \var{file} parameter is present the alias
|
||||||
will be relative to that file, otherwise it will be absolute.
|
will be relative to that file, otherwise it will be absolute.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -99,7 +99,7 @@ or transmitting to other programs.
|
||||||
|
|
||||||
\begin{funcdesc}{Resolve}{\optional{file}}
|
\begin{funcdesc}{Resolve}{\optional{file}}
|
||||||
Resolve the alias. If the alias was created as a relative alias you
|
Resolve the alias. If the alias was created as a relative alias you
|
||||||
should pass the file relative to which it is. Returns the FSSpec for
|
should pass the file relative to which it is. Return the FSSpec for
|
||||||
the file pointed to and a flag indicating whether the alias object
|
the file pointed to and a flag indicating whether the alias object
|
||||||
itself was modified during the search process.
|
itself was modified during the search process.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -113,9 +113,9 @@ Update the alias to point to the \var{file} given. If \var{file2} is
|
||||||
present a relative alias will be created.
|
present a relative alias will be created.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
Note that is currently not possible to directly manipulate a resource
|
Note that it is currently not possible to directly manipulate a resource
|
||||||
as an alias object. Hence, after calling \var{Update} or after
|
as an alias object. Hence, after calling \var{Update} or after
|
||||||
\var{Resolve} indicates that the alias has changed the python program
|
\var{Resolve} indicates that the alias has changed the Python program
|
||||||
is responsible for getting the \var{data} from the alias object and
|
is responsible for getting the \var{data} from the alias object and
|
||||||
modifying the resource.
|
modifying the resource.
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -4,18 +4,18 @@
|
||||||
\renewcommand{\indexsubitem}{(in module macspeech)}
|
\renewcommand{\indexsubitem}{(in module macspeech)}
|
||||||
|
|
||||||
This module provides an interface to the Macintosh Speech Manager,
|
This module provides an interface to the Macintosh Speech Manager,
|
||||||
allowing you to let the macintosh utter phrases. You need a version of
|
allowing you to let the Macintosh utter phrases. You need a version of
|
||||||
the speech manager extension (version 1 and 2 have been tested) in
|
the speech manager extension (version 1 and 2 have been tested) in
|
||||||
your \code{Extensions} folder for this to work. The module does not
|
your \code{Extensions} folder for this to work. The module does not
|
||||||
provide full access to all features of the Speech Manager yet.
|
provide full access to all features of the Speech Manager yet.
|
||||||
|
|
||||||
\begin{funcdesc}{Available}{}
|
\begin{funcdesc}{Available}{}
|
||||||
Test availability of the Speech Manager extension (and, on the
|
Test availability of the Speech Manager extension (and, on the
|
||||||
PowerPC, the Speech Manager shared library). Returns 0 or 1.
|
PowerPC, the Speech Manager shared library). Return 0 or 1.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Version}{}
|
\begin{funcdesc}{Version}{}
|
||||||
Return the (integer) version of the Speech Manager.
|
Return the (integer) version number of the Speech Manager.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{SpeakString}{str}
|
\begin{funcdesc}{SpeakString}{str}
|
||||||
|
|
@ -43,7 +43,7 @@ yet possible to access the parameters of a voice.
|
||||||
\renewcommand{\indexsubitem}{(voice object method)}
|
\renewcommand{\indexsubitem}{(voice object method)}
|
||||||
|
|
||||||
\begin{funcdesc}{GetGender}{}
|
\begin{funcdesc}{GetGender}{}
|
||||||
Return the gender of the voice: 0 for male, 1 for female and -1 for neuter.
|
Return the gender of the voice:\ 0 for male, 1 for female and $-1$ for neuter.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{NewChannel}{}
|
\begin{funcdesc}{NewChannel}{}
|
||||||
|
|
@ -54,7 +54,7 @@ Return a new speech channel object using this voice.
|
||||||
A speech channel object allows you to speak strings with slightly more
|
A speech channel object allows you to speak strings with slightly more
|
||||||
control than \code{SpeakString()}, and allows you to use multiple
|
control than \code{SpeakString()}, and allows you to use multiple
|
||||||
speakers at the same time. Please note that channel pitch and rate are
|
speakers at the same time. Please note that channel pitch and rate are
|
||||||
interrelated in some way, so that to make your macintosh sing you will
|
interrelated in some way, so that to make your Macintosh sing you will
|
||||||
have to adjust both.
|
have to adjust both.
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(speech channel object method)}
|
\renewcommand{\indexsubitem}{(speech channel object method)}
|
||||||
|
|
@ -67,7 +67,7 @@ Stop babbling.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{GetPitch}{}
|
\begin{funcdesc}{GetPitch}{}
|
||||||
Returns the current pitch of the channel, as a floating-point number.
|
Return the current pitch of the channel, as a floating-point number.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{SetPitch}{pitch}
|
\begin{funcdesc}{SetPitch}{pitch}
|
||||||
|
|
|
||||||
|
|
@ -3,11 +3,11 @@
|
||||||
\renewcommand{\indexsubitem}{(in module mactcp)}
|
\renewcommand{\indexsubitem}{(in module mactcp)}
|
||||||
|
|
||||||
This module provides an interface to the Macintosh TCP/IP driver
|
This module provides an interface to the Macintosh TCP/IP driver
|
||||||
MacTCP. There is an accompanying module \var{macdnr} which provides an
|
MacTCP\@. There is an accompanying module \code{macdnr} which provides an
|
||||||
interface to the name-server (allowing you to translate hostnames to
|
interface to the name-server (allowing you to translate hostnames to
|
||||||
ip-addresses), a module \var{MACTCP} which has symbolic names for
|
ip-addresses), a module \code{MACTCP} which has symbolic names for
|
||||||
constants constants used by MacTCP and a wrapper module \var{socket}
|
constants constants used by MacTCP and a wrapper module \code{socket}
|
||||||
which mimics the unix socket interface (as far as possible).
|
which mimics the \UNIX{} socket interface (as far as possible).
|
||||||
|
|
||||||
A complete description of the MacTCP interface can be found in the
|
A complete description of the MacTCP interface can be found in the
|
||||||
Apple MacTCP API documentation.
|
Apple MacTCP API documentation.
|
||||||
|
|
@ -26,14 +26,14 @@ Return the 32-bit integer network mask of the interface.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{TCPCreate}{size}
|
\begin{funcdesc}{TCPCreate}{size}
|
||||||
Create a TCP Stream object. \var{Size} is the size of the receive
|
Create a TCP Stream object. \var{size} is the size of the receive
|
||||||
buffer, \code{4096} is suggested by various sources.
|
buffer, \code{4096} is suggested by various sources.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{UDPCreate}{size, port}
|
\begin{funcdesc}{UDPCreate}{size, port}
|
||||||
Create a UDP stream object. \var{Size} is the size of the receive
|
Create a UDP stream object. \var{size} is the size of the receive
|
||||||
buffer (and, hence, the size of the biggest datagram you can receive
|
buffer (and, hence, the size of the biggest datagram you can receive
|
||||||
on this port). \var{Port} is the UDP port number you want to receive
|
on this port). \var{port} is the UDP port number you want to receive
|
||||||
datagrams on, a value of zero will make MacTCP select a free port.
|
datagrams on, a value of zero will make MacTCP select a free port.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -41,30 +41,30 @@ datagrams on, a value of zero will make MacTCP select a free port.
|
||||||
\renewcommand{\indexsubitem}{(TCP stream method)}
|
\renewcommand{\indexsubitem}{(TCP stream method)}
|
||||||
|
|
||||||
\begin{datadesc}{asr}
|
\begin{datadesc}{asr}
|
||||||
When set to a value different than \var{None} this should point to a
|
When set to a value different than \code{None} this should point to a
|
||||||
function with two integer parameters: an event code and a detail. This
|
function with two integer parameters:\ an event code and a detail. This
|
||||||
function will be called upon network-generated events such as urgent
|
function will be called upon network-generated events such as urgent
|
||||||
data arrival. In addition, it is called with eventcode
|
data arrival. In addition, it is called with eventcode
|
||||||
\var{MACTCP.PassiveOpenDone} when a \var{PassiveOpen} completes. This
|
\code{MACTCP.PassiveOpenDone} when a \code{PassiveOpen} completes. This
|
||||||
is a python addition to the MacTCP semantics.
|
is a Python addition to the MacTCP semantics.
|
||||||
It is safe to do further calls from the asr.
|
It is safe to do further calls from the \code{asr}.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{PassiveOpen}{port}
|
\begin{funcdesc}{PassiveOpen}{port}
|
||||||
Wait for an incoming connection on TCP port \var{port} (zero makes the
|
Wait for an incoming connection on TCP port \var{port} (zero makes the
|
||||||
system pick a free port). The call returns immedeately, and you should
|
system pick a free port). The call returns immediately, and you should
|
||||||
use \var{wait} to wait for completion. You should not issue any method
|
use \var{wait} to wait for completion. You should not issue any method
|
||||||
calls other than
|
calls other than
|
||||||
\var{wait}, \var{isdone} or \var{GetSockName} before the call
|
\code{wait}, \code{isdone} or \code{GetSockName} before the call
|
||||||
completes.
|
completes.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{wait}{}
|
\begin{funcdesc}{wait}{}
|
||||||
Wait for \var{PassiveOpen} to complete.
|
Wait for \code{PassiveOpen} to complete.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{isdone}{}
|
\begin{funcdesc}{isdone}{}
|
||||||
Return 1 if a \var{PassiveOpen} is completed.
|
Return 1 if a \code{PassiveOpen} has completed.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{GetSockName}{}
|
\begin{funcdesc}{GetSockName}{}
|
||||||
|
|
@ -73,9 +73,9 @@ Return the TCP address of this side of a connection as a 2-tuple
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{ActiveOpen}{lport\, host\, rport}
|
\begin{funcdesc}{ActiveOpen}{lport\, host\, rport}
|
||||||
Open an outgoing connection to TCP address \code{(host, rport)}. Use
|
Open an outgoing connection to TCP address \code{(\var{host}, \var{rport})}. Use
|
||||||
local port \var{lport} (zero makes the system pick a free port). This
|
local port \var{lport} (zero makes the system pick a free port). This
|
||||||
call blocks until the connection is established.
|
call blocks until the connection has been established.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Send}{buf\, push\, urgent}
|
\begin{funcdesc}{Send}{buf\, push\, urgent}
|
||||||
|
|
@ -87,7 +87,7 @@ are flags as specified by the TCP standard.
|
||||||
Receive data. The call returns when \var{timeout} seconds have passed
|
Receive data. The call returns when \var{timeout} seconds have passed
|
||||||
or when (according to the MacTCP documentation) ``a reasonable amount
|
or when (according to the MacTCP documentation) ``a reasonable amount
|
||||||
of data has been received''. The return value is a 3-tuple
|
of data has been received''. The return value is a 3-tuple
|
||||||
\code{(data, urgent, mark)}. If urgent data is outstanding \var{Rcv}
|
\code{(\var{data}, \var{urgent}, \var{mark})}. If urgent data is outstanding \code{Rcv}
|
||||||
will always return that before looking at any normal data. The first
|
will always return that before looking at any normal data. The first
|
||||||
call returning urgent data will have the \var{urgent} flag set, the
|
call returning urgent data will have the \var{urgent} flag set, the
|
||||||
last will have the \var{mark} flag set.
|
last will have the \var{mark} flag set.
|
||||||
|
|
@ -95,7 +95,7 @@ last will have the \var{mark} flag set.
|
||||||
|
|
||||||
\begin{funcdesc}{Close}{}
|
\begin{funcdesc}{Close}{}
|
||||||
Tell MacTCP that no more data will be transmitted on this
|
Tell MacTCP that no more data will be transmitted on this
|
||||||
connection. The call returnes when all data has been acknowledged by
|
connection. The call returns when all data has been acknowledged by
|
||||||
the receiving side.
|
the receiving side.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -131,7 +131,7 @@ amtUnackedData} is what you can pass to \code{Send} without blocking.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{datadesc}{amtUnreadData}
|
\begin{datadesc}{amtUnreadData}
|
||||||
The number of bytes received but not yet read (what you can \var{Recv}
|
The number of bytes received but not yet read (what you can \code{Recv}
|
||||||
without blocking).
|
without blocking).
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -145,7 +145,7 @@ about UDP.
|
||||||
|
|
||||||
\begin{datadesc}{asr}
|
\begin{datadesc}{asr}
|
||||||
The asynchronous service routine to be called on events such as
|
The asynchronous service routine to be called on events such as
|
||||||
datagram arrival without outstanding \var{Read} call. The asr has a
|
datagram arrival without outstanding \code{Read} call. The \code{asr} has a
|
||||||
single argument, the event code.
|
single argument, the event code.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -154,8 +154,8 @@ A read-only member giving the port number of this UDP stream.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Read}{timeout}
|
\begin{funcdesc}{Read}{timeout}
|
||||||
Read a datagram, waiting at most \var{timeout} seconds (-1 is
|
Read a datagram, waiting at most \var{timeout} seconds ($-1$ is
|
||||||
indefinite). Returns the data.
|
indefinite). Return the data.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Write}{host\, port\, buf}
|
\begin{funcdesc}{Write}{host\, port\, buf}
|
||||||
|
|
|
||||||
|
|
@ -3,7 +3,7 @@
|
||||||
|
|
||||||
This module implements the interface to RSA's MD5 message digest
|
This module implements the interface to RSA's MD5 message digest
|
||||||
algorithm (see also the file \file{md5.doc}). Its use is quite
|
algorithm (see also the file \file{md5.doc}). Its use is quite
|
||||||
straightforward: use the function \code{md5} to create an
|
straightforward:\ use the function \code{new} to create an
|
||||||
\dfn{md5}-object. You can now ``feed'' this object with arbitrary
|
\dfn{md5}-object. You can now ``feed'' this object with arbitrary
|
||||||
strings.
|
strings.
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -8,15 +8,15 @@ arithmetic routines. Only the interfaces to the \emph{integer}
|
||||||
otherwise, the description in the GNU MP documentation can be applied.
|
otherwise, the description in the GNU MP documentation can be applied.
|
||||||
|
|
||||||
In general, \dfn{mpz}-numbers can be used just like other standard
|
In general, \dfn{mpz}-numbers can be used just like other standard
|
||||||
Python numbers, e.g. you can use the built-in operators like \code{+},
|
Python numbers, e.g.\ you can use the built-in operators like \code{+},
|
||||||
\code{*}, etc., as well as the standard built-in functions like
|
\code{*}, etc., as well as the standard built-in functions like
|
||||||
\code{abs}, \code{int}, \ldots, \code{divmod}, \code{pow}.
|
\code{abs}, \code{int}, \ldots, \code{divmod}, \code{pow}.
|
||||||
\strong{Please note:} the {\it bitwise-xor} operation has been implemented as
|
\strong{Please note:} the {\it bitwise-xor} operation has been implemented as
|
||||||
a bunch of {\it and}s, {\it invert}s and {\it or}s, because the library
|
a bunch of {\it and}s, {\it invert}s and {\it or}s, because the library
|
||||||
lacks an \code{mpz_xor} function, and I didn't need one.
|
lacks an \code{mpz_xor} function, and I didn't need one.
|
||||||
|
|
||||||
You create an mpz-number, by calling the function called \code{mpz} (see
|
You create an mpz-number by calling the function called \code{mpz} (see
|
||||||
below for an excact description). An mpz-number is printed like this:
|
below for an exact description). An mpz-number is printed like this:
|
||||||
\code{mpz(\var{value})}.
|
\code{mpz(\var{value})}.
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module mpz)}
|
\renewcommand{\indexsubitem}{(in module mpz)}
|
||||||
|
|
@ -59,7 +59,7 @@ return mpz-numbers.
|
||||||
\begin{funcdesc}{divm}{numerator\, denominator\, modulus}
|
\begin{funcdesc}{divm}{numerator\, denominator\, modulus}
|
||||||
Returns a number \var{q}. such that
|
Returns a number \var{q}. such that
|
||||||
\code{\var{q} * \var{denominator} \%{} \var{modulus} == \var{numerator}}.
|
\code{\var{q} * \var{denominator} \%{} \var{modulus} == \var{numerator}}.
|
||||||
One could also implement this function in python, using \code{gcdext}.
|
One could also implement this function in Python, using \code{gcdext}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
An mpz-number has one method:
|
An mpz-number has one method:
|
||||||
|
|
@ -69,6 +69,6 @@ An mpz-number has one method:
|
||||||
Convert this mpz-number to a binary string, where the number has been
|
Convert this mpz-number to a binary string, where the number has been
|
||||||
stored as an array of radix-256 digits, least significant digit first.
|
stored as an array of radix-256 digits, least significant digit first.
|
||||||
|
|
||||||
The mpz-number must have a value greater than- or equal to zero,
|
The mpz-number must have a value greater than or equal to zero,
|
||||||
otherwise a \code{ValueError}-exception will be raised.
|
otherwise a \code{ValueError}-exception will be raised.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -9,7 +9,7 @@ When the optional built-in module \code{posix} is available, this
|
||||||
module exports the same functions and data as \code{posix}; otherwise,
|
module exports the same functions and data as \code{posix}; otherwise,
|
||||||
it searches for an OS dependent built-in module like \code{mac} and
|
it searches for an OS dependent built-in module like \code{mac} and
|
||||||
exports the same functions and data as found there. The design of all
|
exports the same functions and data as found there. The design of all
|
||||||
Python's built-in OS dependen modules is such that as long as the same
|
Python's built-in OS dependent modules is such that as long as the same
|
||||||
functionality is available, it uses the same interface; e.g., the
|
functionality is available, it uses the same interface; e.g., the
|
||||||
function \code{os.stat(\var{file})} returns stat info about a \var{file} in a
|
function \code{os.stat(\var{file})} returns stat info about a \var{file} in a
|
||||||
format compatible with the POSIX interface.
|
format compatible with the POSIX interface.
|
||||||
|
|
|
||||||
|
|
@ -8,7 +8,7 @@
|
||||||
\indexii{pickling}{objects}
|
\indexii{pickling}{objects}
|
||||||
|
|
||||||
The \code{pickle} module implements a basic but powerful algorithm for
|
The \code{pickle} module implements a basic but powerful algorithm for
|
||||||
``pickling'' (a.k.a. serializing, marshalling or flattening) nearly
|
``pickling'' (a.k.a.\ serializing, marshalling or flattening) nearly
|
||||||
arbitrary Python objects. This is a more primitive notion than
|
arbitrary Python objects. This is a more primitive notion than
|
||||||
persistency --- although \code{pickle} reads and writes file objects,
|
persistency --- although \code{pickle} reads and writes file objects,
|
||||||
it does not handle the issue of naming persistent objects, nor the
|
it does not handle the issue of naming persistent objects, nor the
|
||||||
|
|
@ -32,7 +32,7 @@ following correctly:
|
||||||
|
|
||||||
\item pointer sharing
|
\item pointer sharing
|
||||||
|
|
||||||
\item instances uf user-defined classes
|
\item instances of user-defined classes
|
||||||
|
|
||||||
\end{itemize}
|
\end{itemize}
|
||||||
|
|
||||||
|
|
@ -105,11 +105,11 @@ module.
|
||||||
\ttindex{__dict__}
|
\ttindex{__dict__}
|
||||||
|
|
||||||
Note that when class instances are pickled, their class's code and
|
Note that when class instances are pickled, their class's code and
|
||||||
data is not pickled along with them. Only the instance data is
|
data are not pickled along with them. Only the instance data are
|
||||||
pickled. This is done on purpose, so you can fix bugs in a class or
|
pickled. This is done on purpose, so you can fix bugs in a class or
|
||||||
add methods and still load objects that were created with an earlier
|
add methods and still load objects that were created with an earlier
|
||||||
version of the class. If you plan to have long-lived objects that
|
version of the class. If you plan to have long-lived objects that
|
||||||
will see many versions of a class, it may be worth to put a version
|
will see many versions of a class, it may be worthwhile to put a version
|
||||||
number in the objects so that suitable conversions can be made by the
|
number in the objects so that suitable conversions can be made by the
|
||||||
class's \code{__setstate__()} method.
|
class's \code{__setstate__()} method.
|
||||||
|
|
||||||
|
|
@ -157,7 +157,7 @@ the file argument.
|
||||||
|
|
||||||
It is possible to make multiple calls to \code{Pickler.dump()} or to
|
It is possible to make multiple calls to \code{Pickler.dump()} or to
|
||||||
\code{Unpickler.load()}, as long as there is a one-to-one
|
\code{Unpickler.load()}, as long as there is a one-to-one
|
||||||
correspondence between pickler and \code{Unpickler} objects and
|
correspondence between \code{Pickler} and \code{Unpickler} objects and
|
||||||
between \code{dump} and \code{load} calls for any pair of
|
between \code{dump} and \code{load} calls for any pair of
|
||||||
corresponding \code{Pickler} and \code{Unpicklers}. {\em Warning}:
|
corresponding \code{Pickler} and \code{Unpicklers}. {\em Warning}:
|
||||||
this is intended for pickling multiple objects without intervening
|
this is intended for pickling multiple objects without intervening
|
||||||
|
|
|
||||||
|
|
@ -3,7 +3,7 @@
|
||||||
\bimodindex{posix}
|
\bimodindex{posix}
|
||||||
|
|
||||||
This module provides access to operating system functionality that is
|
This module provides access to operating system functionality that is
|
||||||
standardized by the C Standard and the POSIX standard (a thinly diguised
|
standardized by the C Standard and the POSIX standard (a thinly disguised
|
||||||
\UNIX{} interface).
|
\UNIX{} interface).
|
||||||
It is available in all Python versions except on the Macintosh;
|
It is available in all Python versions except on the Macintosh;
|
||||||
the MS-DOS version does not support certain functions.
|
the MS-DOS version does not support certain functions.
|
||||||
|
|
@ -31,7 +31,7 @@ in C.
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(exception in module posix)}
|
\renewcommand{\indexsubitem}{(exception in module posix)}
|
||||||
\begin{excdesc}{error}
|
\begin{excdesc}{error}
|
||||||
This exception is raised when an POSIX function returns a
|
This exception is raised when a POSIX function returns a
|
||||||
POSIX-related error (e.g., not for illegal argument types). Its
|
POSIX-related error (e.g., not for illegal argument types). Its
|
||||||
string value is \code{'posix.error'}. The accompanying value is a
|
string value is \code{'posix.error'}. The accompanying value is a
|
||||||
pair containing the numeric error code from \code{errno} and the
|
pair containing the numeric error code from \code{errno} and the
|
||||||
|
|
@ -279,7 +279,7 @@ systems without symbolic links, this always raises
|
||||||
\begin{funcdesc}{system}{command}
|
\begin{funcdesc}{system}{command}
|
||||||
Execute the command (a string) in a subshell. This is implemented by
|
Execute the command (a string) in a subshell. This is implemented by
|
||||||
calling the Standard C function \code{system()}, and has the same
|
calling the Standard C function \code{system()}, and has the same
|
||||||
limitations. Changes to \code{posix.environ}, \code{sys.stdin} etc. are
|
limitations. Changes to \code{posix.environ}, \code{sys.stdin} etc.\ are
|
||||||
not reflected in the environment of the executed command. The return
|
not reflected in the environment of the executed command. The return
|
||||||
value is the exit status of the process as returned by Standard C
|
value is the exit status of the process as returned by Standard C
|
||||||
\code{system()}.
|
\code{system()}.
|
||||||
|
|
@ -302,7 +302,7 @@ Return a 5-tuple containing information identifying the current
|
||||||
operating system. The tuple contains 5 strings:
|
operating system. The tuple contains 5 strings:
|
||||||
\code{(\var{sysname}, \var{nodename}, \var{release}, \var{version}, \var{machine})}.
|
\code{(\var{sysname}, \var{nodename}, \var{release}, \var{version}, \var{machine})}.
|
||||||
Some systems truncate the nodename to 8
|
Some systems truncate the nodename to 8
|
||||||
characters or to the leading component; an better way to get the
|
characters or to the leading component; a better way to get the
|
||||||
hostname is \code{socket.gethostname()}. (Not on MS-DOS, nor on older
|
hostname is \code{socket.gethostname()}. (Not on MS-DOS, nor on older
|
||||||
\UNIX{} systems.)
|
\UNIX{} systems.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -48,13 +48,13 @@ Return true if \var{p} is an absolute pathname (begins with a slash).
|
||||||
|
|
||||||
\begin{funcdesc}{isfile}{p}
|
\begin{funcdesc}{isfile}{p}
|
||||||
Return true if \var{p} is an existing regular file. This follows
|
Return true if \var{p} is an existing regular file. This follows
|
||||||
symbolic links, so both islink() and isfile() can be true for the same
|
symbolic links, so both \code{islink()} and \code{isfile()} can be true for the same
|
||||||
path.
|
path.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{isdir}{p}
|
\begin{funcdesc}{isdir}{p}
|
||||||
Return true if \var{p} is an existing directory. This follows
|
Return true if \var{p} is an existing directory. This follows
|
||||||
symbolic links, so both islink() and isdir() can be true for the same
|
symbolic links, so both \code{islink()} and \code{isdir()} can be true for the same
|
||||||
path.
|
path.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -109,7 +109,7 @@ everything leading up to that. If \var{p} ends in a slash (except if
|
||||||
it is the root), the trailing slash is removed and the operation
|
it is the root), the trailing slash is removed and the operation
|
||||||
applied to the result; otherwise, \code{join(\var{head}, \var{tail})} equals
|
applied to the result; otherwise, \code{join(\var{head}, \var{tail})} equals
|
||||||
\var{p}. The \var{tail} part never contains a slash. Some boundary
|
\var{p}. The \var{tail} part never contains a slash. Some boundary
|
||||||
cases: if \var{p} is the root, \var{head} equals \var{p} and
|
cases:\ if \var{p} is the root, \var{head} equals \var{p} and
|
||||||
\var{tail} is empty; if \var{p} is empty, both \var{head} and
|
\var{tail} is empty; if \var{p} is empty, both \var{head} and
|
||||||
\var{tail} are empty; if \var{p} contains no slash, \var{head} is
|
\var{tail} are empty; if \var{p} contains no slash, \var{head} is
|
||||||
empty and \var{tail} equals \var{p}.
|
empty and \var{tail} equals \var{p}.
|
||||||
|
|
|
||||||
|
|
@ -1,7 +1,7 @@
|
||||||
\section{Standard Module \sectcode{rand}}
|
\section{Standard Module \sectcode{rand}}
|
||||||
|
|
||||||
\stmodindex{rand} This module implements a pseudo-random number
|
\stmodindex{rand} This module implements a pseudo-random number
|
||||||
generator with an interface similar to \code{rand()} in C. It defines
|
generator with an interface similar to \code{rand()} in C\@. It defines
|
||||||
the following functions:
|
the following functions:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module rand)}
|
\renewcommand{\indexsubitem}{(in module rand)}
|
||||||
|
|
|
||||||
|
|
@ -22,7 +22,7 @@ are currently supported.
|
||||||
|
|
||||||
\begin{funcdesc}{longimagedata}{file}
|
\begin{funcdesc}{longimagedata}{file}
|
||||||
This function reads and decodes the image on the specified file, and
|
This function reads and decodes the image on the specified file, and
|
||||||
returns it as a python string. The string has 4 byte RGBA pixels.
|
returns it as a Python string. The string has 4 byte RGBA pixels.
|
||||||
The bottom left pixel is the first in
|
The bottom left pixel is the first in
|
||||||
the string. This format is suitable to pass to \code{gl.lrectwrite},
|
the string. This format is suitable to pass to \code{gl.lrectwrite},
|
||||||
for instance.
|
for instance.
|
||||||
|
|
@ -41,5 +41,5 @@ These are the formats returned by \code{gl.lrectread}.
|
||||||
This function sets a global flag which defines whether the scan lines
|
This function sets a global flag which defines whether the scan lines
|
||||||
of the image are read or written from bottom to top (flag is zero,
|
of the image are read or written from bottom to top (flag is zero,
|
||||||
compatible with SGI GL) or from top to bottom(flag is one,
|
compatible with SGI GL) or from top to bottom(flag is one,
|
||||||
compatible with X). The default is zero.
|
compatible with X)\@. The default is zero.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -25,7 +25,7 @@ The available functions in this module are:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module rotor)}
|
\renewcommand{\indexsubitem}{(in module rotor)}
|
||||||
\begin{funcdesc}{newrotor}{key\optional{\, numrotors}}
|
\begin{funcdesc}{newrotor}{key\optional{\, numrotors}}
|
||||||
Returns a rotor object. \var{key} is a string containing the encryption key
|
Return a rotor object. \var{key} is a string containing the encryption key
|
||||||
for the object; it can contain arbitrary binary data. The key will be used
|
for the object; it can contain arbitrary binary data. The key will be used
|
||||||
to randomly generate the rotor permutations and their initial positions.
|
to randomly generate the rotor permutations and their initial positions.
|
||||||
\var{numrotors} is the number of rotor permutations in the returned object;
|
\var{numrotors} is the number of rotor permutations in the returned object;
|
||||||
|
|
@ -36,28 +36,28 @@ Rotor objects have the following methods:
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(rotor method)}
|
\renewcommand{\indexsubitem}{(rotor method)}
|
||||||
\begin{funcdesc}{setkey}{}
|
\begin{funcdesc}{setkey}{}
|
||||||
Resets the rotor to its initial state.
|
Reset the rotor to its initial state.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{encrypt}{plaintext}
|
\begin{funcdesc}{encrypt}{plaintext}
|
||||||
Resets the rotor object to its initial state and encrypts \var{plaintext},
|
Reset the rotor object to its initial state and encrypt \var{plaintext},
|
||||||
returning a string containing the ciphertext. The ciphertext is always the
|
returning a string containing the ciphertext. The ciphertext is always the
|
||||||
same length as the original plaintext.
|
same length as the original plaintext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{encryptmore}{plaintext}
|
\begin{funcdesc}{encryptmore}{plaintext}
|
||||||
Encrypts \var{plaintext} without resetting the rotor object, and returns a
|
Encrypt \var{plaintext} without resetting the rotor object, and return a
|
||||||
string containing the ciphertext.
|
string containing the ciphertext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{decrypt}{ciphertext}
|
\begin{funcdesc}{decrypt}{ciphertext}
|
||||||
Resets the rotor object to its initial state and decrypts \var{ciphertext},
|
Reset the rotor object to its initial state and decrypt \var{ciphertext},
|
||||||
returning a string containing the ciphertext. The plaintext string will
|
returning a string containing the ciphertext. The plaintext string will
|
||||||
always be the same length as the ciphertext.
|
always be the same length as the ciphertext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{decryptmore}{ciphertext}
|
\begin{funcdesc}{decryptmore}{ciphertext}
|
||||||
Decrypts \var{ciphertext} without resetting the rotor object, and returns a
|
Decrypt \var{ciphertext} without resetting the rotor object, and return a
|
||||||
string containing the ciphertext.
|
string containing the ciphertext.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -12,20 +12,20 @@ it is explicitly reset (i.e. Python uses the BSD style interface).
|
||||||
|
|
||||||
\item
|
\item
|
||||||
There is no way to ``block'' signals temporarily from critical
|
There is no way to ``block'' signals temporarily from critical
|
||||||
sections (since this is not supported by all Unix flavors).
|
sections (since this is not supported by all \UNIX{} flavors).
|
||||||
|
|
||||||
\item
|
\item
|
||||||
Although Python signal handlers are called asynchronously as far as
|
Although Python signal handlers are called asynchronously as far as
|
||||||
the Python user is concerned, they can only occur between the
|
the Python user is concerned, they can only occur between the
|
||||||
``atomic'' instructions of the Python interpreter. This means that
|
``atomic'' instructions of the Python interpreter. This means that
|
||||||
signals arriving during long calculations implemented purely in C
|
signals arriving during long calculations implemented purely in C
|
||||||
(e.g. regular expression matches on large bodies of text) may be
|
(e.g.\ regular expression matches on large bodies of text) may be
|
||||||
delayed for an arbitrary time.
|
delayed for an arbitrary time.
|
||||||
|
|
||||||
\item
|
\item
|
||||||
When a signal arrives during an I/O operation, it is possible that the
|
When a signal arrives during an I/O operation, it is possible that the
|
||||||
I/O operation raises an exception after the signal handler returns.
|
I/O operation raises an exception after the signal handler returns.
|
||||||
This is dependent on the underlying Unix system's semantics regarding
|
This is dependent on the underlying \UNIX{} system's semantics regarding
|
||||||
interrupted system calls.
|
interrupted system calls.
|
||||||
|
|
||||||
\item
|
\item
|
||||||
|
|
@ -44,8 +44,8 @@ overridden.
|
||||||
\item
|
\item
|
||||||
Some care must be taken if both signals and threads are used in the
|
Some care must be taken if both signals and threads are used in the
|
||||||
same program. The fundamental thing to remember in using signals and
|
same program. The fundamental thing to remember in using signals and
|
||||||
threads simultaneously is: always perform \code{signal()} operations
|
threads simultaneously is:\ always perform \code{signal()} operations
|
||||||
in the main thread of execution. Any thread can perform a
|
in the main thread of execution. Any thread can perform an
|
||||||
\code{alarm()}, \code{getsignal()}, or \code{pause()}; only the main
|
\code{alarm()}, \code{getsignal()}, or \code{pause()}; only the main
|
||||||
thread can set a new signal handler, and the main thread will be the
|
thread can set a new signal handler, and the main thread will be the
|
||||||
only one to receive signals. This means that signals can't be used as
|
only one to receive signals. This means that signals can't be used as
|
||||||
|
|
@ -73,7 +73,7 @@ The variables defined in the signal module are:
|
||||||
hangup signal is defined as \code{signal.SIGHUP}; the variable names
|
hangup signal is defined as \code{signal.SIGHUP}; the variable names
|
||||||
are identical to the names used in C programs, as found in
|
are identical to the names used in C programs, as found in
|
||||||
\file{signal.h}.
|
\file{signal.h}.
|
||||||
The UNIX man page for \file{signal} lists the existing signals (on
|
The \UNIX{} man page for \file{signal} lists the existing signals (on
|
||||||
some systems this is \file{signal(2)}, on others the list is in
|
some systems this is \file{signal(2)}, on others the list is in
|
||||||
\file{signal(7)}).
|
\file{signal(7)}).
|
||||||
Note that not all systems define the same set of signal names; only
|
Note that not all systems define the same set of signal names; only
|
||||||
|
|
@ -89,18 +89,18 @@ The signal module defines the following functions:
|
||||||
\begin{funcdesc}{alarm}{time}
|
\begin{funcdesc}{alarm}{time}
|
||||||
If \var{time} is non-zero, this function requests that a
|
If \var{time} is non-zero, this function requests that a
|
||||||
\code{SIGALRM} signal be sent to the process in \var{time} seconds.
|
\code{SIGALRM} signal be sent to the process in \var{time} seconds.
|
||||||
Any previously scheduled alarm is canceled (i.e. only one alarm can
|
Any previously scheduled alarm is canceled (i.e.\ only one alarm can
|
||||||
be scheduled at any time). The returned value is then the number of
|
be scheduled at any time). The returned value is then the number of
|
||||||
seconds before any previously set alarm was to have been delivered.
|
seconds before any previously set alarm was to have been delivered.
|
||||||
If \var{time} is zero, no alarm id scheduled, and any scheduled
|
If \var{time} is zero, no alarm id scheduled, and any scheduled
|
||||||
alarm is canceled. The return value is the number of seconds
|
alarm is canceled. The return value is the number of seconds
|
||||||
remaining before a previously scheduled alarm. If the return value
|
remaining before a previously scheduled alarm. If the return value
|
||||||
is zero, no alarm is currently scheduled. (See the UNIX man page
|
is zero, no alarm is currently scheduled. (See the \UNIX{} man page
|
||||||
\code{alarm(2)}.)
|
\code{alarm(2)}.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{getsignal}{signalnum}
|
\begin{funcdesc}{getsignal}{signalnum}
|
||||||
Returns the current signal handler for the signal \var{signalnum}.
|
Return the current signal handler for the signal \var{signalnum}.
|
||||||
The returned value may be a callable Python object, or one of the
|
The returned value may be a callable Python object, or one of the
|
||||||
special values \code{signal.SIG_IGN}, \code{signal.SIG_DFL} or
|
special values \code{signal.SIG_IGN}, \code{signal.SIG_DFL} or
|
||||||
\code{None}. Here, \code{signal.SIG_IGN} means that the signal was
|
\code{None}. Here, \code{signal.SIG_IGN} means that the signal was
|
||||||
|
|
@ -110,20 +110,20 @@ The signal module defines the following functions:
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{pause}{}
|
\begin{funcdesc}{pause}{}
|
||||||
Causes the process to sleep until a signal is received; the
|
Cause the process to sleep until a signal is received; the
|
||||||
appropriate handler will then be called. Returns nothing. (See the
|
appropriate handler will then be called. Returns nothing. (See the
|
||||||
UNIX man page \code{signal(2)}.)
|
\UNIX{} man page \code{signal(2)}.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{signal}{signalnum\, handler}
|
\begin{funcdesc}{signal}{signalnum\, handler}
|
||||||
Sets the handler for signal \var{signalnum} to the function
|
Set the handler for signal \var{signalnum} to the function
|
||||||
\var{handler}. \var{handler} can be any callable Python object, or
|
\var{handler}. \var{handler} can be any callable Python object, or
|
||||||
one of the special values \code{signal.SIG_IGN} or
|
one of the special values \code{signal.SIG_IGN} or
|
||||||
\code{signal.SIG_DFL}. The previous signal handler will be returned
|
\code{signal.SIG_DFL}. The previous signal handler will be returned
|
||||||
(see the description of \code{getsignal()} above). (See the UNIX
|
(see the description of \code{getsignal()} above). (See the \UNIX{}
|
||||||
man page \code{signal(2)}.)
|
man page \code{signal(2)}.)
|
||||||
|
|
||||||
When threads are enabled, this function can only be called from the
|
When threads are enabled, this function can only be called from the
|
||||||
main thread; attempting to call it from other threads will cause a
|
main thread; attempting to call it from other threads will cause a
|
||||||
\code{ValueError} exception will be raised.
|
\code{ValueError} exception to be raised.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -10,7 +10,7 @@ Tutorial}, by Stuart Sechrest and \emph{An Advanced 4.3BSD Interprocess
|
||||||
Communication Tutorial}, by Samuel J. Leffler et al, both in the
|
Communication Tutorial}, by Samuel J. Leffler et al, both in the
|
||||||
\UNIX{} Programmer's Manual, Supplementary Documents 1 (sections PS1:7
|
\UNIX{} Programmer's Manual, Supplementary Documents 1 (sections PS1:7
|
||||||
and PS1:8). The \UNIX{} manual pages for the various socket-related
|
and PS1:8). The \UNIX{} manual pages for the various socket-related
|
||||||
system calls also a valuable source of information on the details of
|
system calls are also a valuable source of information on the details of
|
||||||
socket semantics.
|
socket semantics.
|
||||||
|
|
||||||
The Python interface is a straightforward transliteration of the
|
The Python interface is a straightforward transliteration of the
|
||||||
|
|
@ -77,11 +77,11 @@ used for the second argument to \code{socket()}.
|
||||||
\dataline{IPPORT_*}
|
\dataline{IPPORT_*}
|
||||||
\dataline{INADDR_*}
|
\dataline{INADDR_*}
|
||||||
\dataline{IP_*}
|
\dataline{IP_*}
|
||||||
Many constants of these forms, documented in the Unix documentation on
|
Many constants of these forms, documented in the \UNIX{} documentation on
|
||||||
sockets and/or the IP protocol, are also defined in the socket module.
|
sockets and/or the IP protocol, are also defined in the socket module.
|
||||||
They are generally used in arguments to the \code{setsockopt} and
|
They are generally used in arguments to the \code{setsockopt} and
|
||||||
\code{getsockopt} methods of socket objects. In most cases, only
|
\code{getsockopt} methods of socket objects. In most cases, only
|
||||||
those symbols that are defined in the Unix header files are defined;
|
those symbols that are defined in the \UNIX{} header files are defined;
|
||||||
for a few symbols, default values are provided.
|
for a few symbols, default values are provided.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -113,7 +113,7 @@ for that service. The protocol name should be \code{'tcp'} or
|
||||||
\code{'udp'}.
|
\code{'udp'}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{socket}{family\, type\, proto}
|
\begin{funcdesc}{socket}{family\, type\optional{\, proto}}
|
||||||
Create a new socket using the given address family, socket type and
|
Create a new socket using the given address family, socket type and
|
||||||
protocol number. The address family should be \code{AF_INET} or
|
protocol number. The address family should be \code{AF_INET} or
|
||||||
\code{AF_UNIX}. The socket type should be \code{SOCK_STREAM},
|
\code{AF_UNIX}. The socket type should be \code{SOCK_STREAM},
|
||||||
|
|
@ -121,7 +121,7 @@ protocol number. The address family should be \code{AF_INET} or
|
||||||
The protocol number is usually zero and may be omitted in that case.
|
The protocol number is usually zero and may be omitted in that case.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{fromfd}{fd\, family\, type\, proto}
|
\begin{funcdesc}{fromfd}{fd\, family\, type\optional{\, proto}}
|
||||||
Build a socket object from an existing file descriptor (an integer as
|
Build a socket object from an existing file descriptor (an integer as
|
||||||
returned by a file object's \code{fileno} method). Address family,
|
returned by a file object's \code{fileno} method). Address family,
|
||||||
socket type and protocol number are as for the \code{socket} function
|
socket type and protocol number are as for the \code{socket} function
|
||||||
|
|
@ -129,7 +129,7 @@ above. The file descriptor should refer to a socket, but this is not
|
||||||
checked --- subsequent operations on the object may fail if the file
|
checked --- subsequent operations on the object may fail if the file
|
||||||
descriptor is invalid. This function is rarely needed, but can be
|
descriptor is invalid. This function is rarely needed, but can be
|
||||||
used to get or set socket options on a socket passed to a program as
|
used to get or set socket options on a socket passed to a program as
|
||||||
standard input or output (e.g. a server started by the \UNIX{} inet
|
standard input or output (e.g.\ a server started by the \UNIX{} inet
|
||||||
daemon).
|
daemon).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -185,7 +185,7 @@ number of an IP socket, for instance.
|
||||||
see above.)
|
see above.)
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{getsockopt}{level\, optname\, buflen}
|
\begin{funcdesc}{getsockopt}{level\, optname\optional{\, buflen}}
|
||||||
Return the value of the given socket option (see the \UNIX{} man page
|
Return the value of the given socket option (see the \UNIX{} man page
|
||||||
{\it getsockopt}(2)). The needed symbolic constants are defined in
|
{\it getsockopt}(2)). The needed symbolic constants are defined in
|
||||||
the \code{socket} module (\code{SO_*} etc.). If the optional third
|
the \code{socket} module (\code{SO_*} etc.). If the optional third
|
||||||
|
|
@ -211,7 +211,7 @@ descriptor, so the file object and socket object may be closed or
|
||||||
garbage-collected independently.
|
garbage-collected independently.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{recv}{bufsize\, flags}
|
\begin{funcdesc}{recv}{bufsize\optional{\, flags}}
|
||||||
Receive data from the socket. The return value is a string representing
|
Receive data from the socket. The return value is a string representing
|
||||||
the data received. The maximum amount of data to be received
|
the data received. The maximum amount of data to be received
|
||||||
at once is specified by \var{bufsize}. See the \UNIX{} manual page
|
at once is specified by \var{bufsize}. See the \UNIX{} manual page
|
||||||
|
|
@ -271,7 +271,7 @@ Note that there are no methods \code{read()} or \code{write()}; use
|
||||||
\subsection{Example}
|
\subsection{Example}
|
||||||
\nodename{Socket Example}
|
\nodename{Socket Example}
|
||||||
|
|
||||||
Here are two minimal example programs using the TCP/IP protocol: a
|
Here are two minimal example programs using the TCP/IP protocol:\ a
|
||||||
server that echoes all data that it receives back (servicing only one
|
server that echoes all data that it receives back (servicing only one
|
||||||
client), and a client using it. Note that a server must perform the
|
client), and a client using it. Note that a server must perform the
|
||||||
sequence \code{socket}, \code{bind}, \code{listen}, \code{accept}
|
sequence \code{socket}, \code{bind}, \code{listen}, \code{accept}
|
||||||
|
|
|
||||||
|
|
@ -72,7 +72,7 @@ or more digits, optionally preceded by a sign (\samp{+} or \samp{-}).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{expandtabs}{s\, tabsize}
|
\begin{funcdesc}{expandtabs}{s\, tabsize}
|
||||||
Expand tabs in a string, i.e. replace them by one or more spaces,
|
Expand tabs in a string, i.e.\ replace them by one or more spaces,
|
||||||
depending on the current column and the given tab size. The column
|
depending on the current column and the given tab size. The column
|
||||||
number is reset to zero after each newline occurring in the string.
|
number is reset to zero after each newline occurring in the string.
|
||||||
This doesn't understand other non-printing characters or escape
|
This doesn't understand other non-printing characters or escape
|
||||||
|
|
@ -88,7 +88,7 @@ negative, \code{len(\var{s})} is added.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{rfind}{s\, sub\optional{\, start}}
|
\begin{funcdesc}{rfind}{s\, sub\optional{\, start}}
|
||||||
Like \code{find} but finds the highest index.
|
Like \code{find} but find the highest index.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{index}{s\, sub\optional{\, start}}
|
\begin{funcdesc}{index}{s\, sub\optional{\, start}}
|
||||||
|
|
@ -101,7 +101,7 @@ Like \code{rfind} but raise \code{ValueError} when the substring is
|
||||||
not found.
|
not found.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{count}{s\, sub\, i}
|
\begin{funcdesc}{count}{s\, sub\optional{\, i}}
|
||||||
Return the number of (non-overlapping) occurrences of substring
|
Return the number of (non-overlapping) occurrences of substring
|
||||||
\var{sub} in string \var{s} with index at least \var{i}.
|
\var{sub} in string \var{s} with index at least \var{i}.
|
||||||
If \var{i} is omitted, it defaults to \code{0}.
|
If \var{i} is omitted, it defaults to \code{0}.
|
||||||
|
|
@ -112,12 +112,12 @@ Convert letters to lower case.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{split}{s}
|
\begin{funcdesc}{split}{s}
|
||||||
Returns a list of the whitespace-delimited words of the string
|
Return a list of the whitespace-delimited words of the string
|
||||||
\var{s}.
|
\var{s}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{splitfields}{s\, sep}
|
\begin{funcdesc}{splitfields}{s\, sep}
|
||||||
Returns a list containing the fields of the string \var{s}, using
|
Return a list containing the fields of the string \var{s}, using
|
||||||
the string \var{sep} as a separator. The list will have one more
|
the string \var{sep} as a separator. The list will have one more
|
||||||
items than the number of non-overlapping occurrences of the
|
items than the number of non-overlapping occurrences of the
|
||||||
separator in the string. Thus, \code{string.splitfields(\var{s}, '
|
separator in the string. Thus, \code{string.splitfields(\var{s}, '
|
||||||
|
|
@ -139,12 +139,12 @@ equals \var{t}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{strip}{s}
|
\begin{funcdesc}{strip}{s}
|
||||||
Removes leading and trailing whitespace from the string
|
Remove leading and trailing whitespace from the string
|
||||||
\var{s}.
|
\var{s}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{swapcase}{s}
|
\begin{funcdesc}{swapcase}{s}
|
||||||
Converts lower case letters to upper case and vice versa.
|
Convert lower case letters to upper case and vice versa.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{upper}{s}
|
\begin{funcdesc}{upper}{s}
|
||||||
|
|
|
||||||
|
|
@ -5,8 +5,8 @@
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(in module tempfile)}
|
\renewcommand{\indexsubitem}{(in module tempfile)}
|
||||||
|
|
||||||
This module generates temporary file names. It is not UNIX specific,
|
This module generates temporary file names. It is not \UNIX{} specific,
|
||||||
but it may require some help on non-UNIX systems.
|
but it may require some help on non-\UNIX{} systems.
|
||||||
|
|
||||||
Note: the modules does not create temporary files, nor does it
|
Note: the modules does not create temporary files, nor does it
|
||||||
automatically remove them when the current process exits or dies.
|
automatically remove them when the current process exits or dies.
|
||||||
|
|
@ -27,7 +27,7 @@ are initialized at the first call to \code{mktemp()}.
|
||||||
When set to a value other than \code{None}, this variable defines the
|
When set to a value other than \code{None}, this variable defines the
|
||||||
directory in which filenames returned by \code{mktemp()} reside. The
|
directory in which filenames returned by \code{mktemp()} reside. The
|
||||||
default is taken from the environment variable \code{TMPDIR}; if this
|
default is taken from the environment variable \code{TMPDIR}; if this
|
||||||
is not set, either \code{/usr/tmp} is used (on UNIX), or the current
|
is not set, either \code{/usr/tmp} is used (on \UNIX{}), or the current
|
||||||
working directory (all other systems). No check is made to see
|
working directory (all other systems). No check is made to see
|
||||||
whether its value is valid.
|
whether its value is valid.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
@ -38,11 +38,11 @@ When set to a value other than \code{None}, this variable defines the
|
||||||
prefix of the final component of the filenames returned by
|
prefix of the final component of the filenames returned by
|
||||||
\code{mktemp()}. A string of decimal digits is added to generate
|
\code{mktemp()}. A string of decimal digits is added to generate
|
||||||
unique filenames. The default is either ``\code{@\var{pid}.}'' where
|
unique filenames. The default is either ``\code{@\var{pid}.}'' where
|
||||||
\var{pid} is the current process ID (on UNIX), or ``\code{tmp}'' (all
|
\var{pid} is the current process ID (on \UNIX{}), or ``\code{tmp}'' (all
|
||||||
other systems).
|
other systems).
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
Warning: if a UNIX process uses \code{mktemp()}, then calls
|
Warning: if a \UNIX{} process uses \code{mktemp()}, then calls
|
||||||
\code{fork()} and both parent and child continue to use
|
\code{fork()} and both parent and child continue to use
|
||||||
\code{mktemp()}, the processes will generate conflicting temporary
|
\code{mktemp()}, the processes will generate conflicting temporary
|
||||||
names. To resolve this, the child process should assign \code{None}
|
names. To resolve this, the child process should assign \code{None}
|
||||||
|
|
|
||||||
|
|
@ -2,14 +2,14 @@
|
||||||
\bimodindex{thread}
|
\bimodindex{thread}
|
||||||
|
|
||||||
This module provides low-level primitives for working with multiple
|
This module provides low-level primitives for working with multiple
|
||||||
threads (a.k.a. \dfn{light-weight processes} or \dfn{tasks}) --- multiple
|
threads (a.k.a.\ \dfn{light-weight processes} or \dfn{tasks}) --- multiple
|
||||||
threads of control sharing their global data space. For
|
threads of control sharing their global data space. For
|
||||||
synchronization, simple locks (a.k.a. \dfn{mutexes} or \dfn{binary
|
synchronization, simple locks (a.k.a.\ \dfn{mutexes} or \dfn{binary
|
||||||
semaphores}) are provided.
|
semaphores}) are provided.
|
||||||
|
|
||||||
The module is optional and supported on SGI IRIX 4.x and 5.x and Sun
|
The module is optional and supported on SGI IRIX 4.x and 5.x and Sun
|
||||||
Solaris 2.x systems, as well as on systems that have a PTHREAD
|
Solaris 2.x systems, as well as on systems that have a PTHREAD
|
||||||
implementation (e.g. KSR).
|
implementation (e.g.\ KSR).
|
||||||
|
|
||||||
It defines the following constant and functions:
|
It defines the following constant and functions:
|
||||||
|
|
||||||
|
|
@ -21,7 +21,7 @@ Raised on thread-specific errors.
|
||||||
\begin{funcdesc}{start_new_thread}{func\, arg}
|
\begin{funcdesc}{start_new_thread}{func\, arg}
|
||||||
Start a new thread. The thread executes the function \var{func}
|
Start a new thread. The thread executes the function \var{func}
|
||||||
with the argument list \var{arg} (which must be a tuple). When the
|
with the argument list \var{arg} (which must be a tuple). When the
|
||||||
function returns, the thread silently exits. When the function raises
|
function returns, the thread silently exits. When the function
|
||||||
terminates with an unhandled exception, a stack trace is printed and
|
terminates with an unhandled exception, a stack trace is printed and
|
||||||
then the thread exits (but other threads continue to run).
|
then the thread exits (but other threads continue to run).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -59,7 +59,7 @@ Without the optional argument, this method acquires the lock
|
||||||
unconditionally, if necessary waiting until it is released by another
|
unconditionally, if necessary waiting until it is released by another
|
||||||
thread (only one thread at a time can acquire a lock --- that's their
|
thread (only one thread at a time can acquire a lock --- that's their
|
||||||
reason for existence), and returns \code{None}. If the integer
|
reason for existence), and returns \code{None}. If the integer
|
||||||
\var{waitflag} argument is present, the action depends on its value:
|
\var{waitflag} argument is present, the action depends on its value:\
|
||||||
if it is zero, the lock is only acquired if it can be acquired
|
if it is zero, the lock is only acquired if it can be acquired
|
||||||
immediately without waiting, while if it is nonzero, the lock is
|
immediately without waiting, while if it is nonzero, the lock is
|
||||||
acquired unconditionally as before. If an argument is present, the
|
acquired unconditionally as before. If an argument is present, the
|
||||||
|
|
@ -72,7 +72,7 @@ necessarily by the same thread.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{locked}{}
|
\begin{funcdesc}{locked}{}
|
||||||
Return the status of the lock: 1 if it has been acquired by some
|
Return the status of the lock:\ 1 if it has been acquired by some
|
||||||
thread, 0 if not.
|
thread, 0 if not.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,5 +1,5 @@
|
||||||
\chapter{UNIX ONLY}
|
\chapter{UNIX ONLY}
|
||||||
|
|
||||||
The modules described in this chapter provide interfaces to features
|
The modules described in this chapter provide interfaces to features
|
||||||
that are unique to the UNIX operating system, or in some cases to
|
that are unique to the \UNIX{} operating system, or in some cases to
|
||||||
some or many variants of it.
|
some or many variants of it.
|
||||||
|
|
|
||||||
|
|
@ -30,14 +30,14 @@ Bits in the status as returned by \var{Status}.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{available}{}
|
\begin{funcdesc}{available}{}
|
||||||
Returns 1 if the communication toolbox is available, zero otherwise.
|
Return 1 if the communication toolbox is available, zero otherwise.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{CMNew}{name\, sizes}
|
\begin{funcdesc}{CMNew}{name\, sizes}
|
||||||
Create a connection object using the connection tool named
|
Create a connection object using the connection tool named
|
||||||
\var{name}. \var{sizes} is a 6-tuple given buffer sizes for data in,
|
\var{name}. \var{sizes} is a 6-tuple given buffer sizes for data in,
|
||||||
data out, control in, control out, attention in and attention out.
|
data out, control in, control out, attention in and attention out.
|
||||||
Alternatively, passing \var{None} will result in default buffer sizes.
|
Alternatively, passing \code{None} will result in default buffer sizes.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\subsection{connection object}
|
\subsection{connection object}
|
||||||
|
|
@ -47,14 +47,14 @@ of \code{-1} is indefinite, meaning that the command runs to completion.
|
||||||
\renewcommand{\indexsubitem}{(connection object method)}
|
\renewcommand{\indexsubitem}{(connection object method)}
|
||||||
|
|
||||||
\begin{datadesc}{callback}
|
\begin{datadesc}{callback}
|
||||||
If this member is set to a value other than \var{None} it should point
|
If this member is set to a value other than \code{None} it should point
|
||||||
to a function accepting a single argument (the connection
|
to a function accepting a single argument (the connection
|
||||||
object). This will make all connection object methods work
|
object). This will make all connection object methods work
|
||||||
asynchronously, with the callback routine being called upon
|
asynchronously, with the callback routine being called upon
|
||||||
completion.
|
completion.
|
||||||
|
|
||||||
{\em Note:} for reasons beyond my understanding the callback routine
|
{\em Note:} for reasons beyond my understanding the callback routine
|
||||||
is never called currently. You are advised against using asynchronous
|
is currently never called. You are advised against using asynchronous
|
||||||
calls for the time being.
|
calls for the time being.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -76,15 +76,15 @@ Accept (when \var{yesno} is non-zero) or reject an incoming call after
|
||||||
|
|
||||||
\begin{funcdesc}{Close}{timeout\, now}
|
\begin{funcdesc}{Close}{timeout\, now}
|
||||||
Close a connection. When \var{now} is zero, the close is orderly
|
Close a connection. When \var{now} is zero, the close is orderly
|
||||||
(i.e. outstanding output is flushed, etc) with a timeout of
|
(i.e.\ outstanding output is flushed, etc.)\ with a timeout of
|
||||||
\var{timeout} seconds. When \var{now} is non-zero the close is
|
\var{timeout} seconds. When \var{now} is non-zero the close is
|
||||||
immedeate, discarding output.
|
immediate, discarding output.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Read}{len\, chan\, timeout}
|
\begin{funcdesc}{Read}{len\, chan\, timeout}
|
||||||
Read \var{len} bytes or until \var{timeout} seconds have passed from
|
Read \var{len} bytes, or until \var{timeout} seconds have passed, from
|
||||||
the channel \var{chan} (which is one of \var{cmData}, \var{cmCntl} or
|
the channel \var{chan} (which is one of \var{cmData}, \var{cmCntl} or
|
||||||
\var{cmAttn}). Returns a 2-tuple: the data read and the end-of-message
|
\var{cmAttn}). Return a 2-tuple:\ the data read and the end-of-message
|
||||||
flag.
|
flag.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -97,8 +97,8 @@ the number of bytes written.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Status}{}
|
\begin{funcdesc}{Status}{}
|
||||||
Return connection status as the 2-tuple \code{(sizes,
|
Return connection status as the 2-tuple \code{(\var{sizes},
|
||||||
flags)}. \var{Sizes} is a 6-tuple giving the actual buffer sizes used
|
\var{flags})}. \var{sizes} is a 6-tuple giving the actual buffer sizes used
|
||||||
(see \var{CMNew}), \var{flags} is a set of bits describing the state
|
(see \var{CMNew}), \var{flags} is a set of bits describing the state
|
||||||
of the connection.
|
of the connection.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
|
||||||
|
|
@ -23,13 +23,13 @@ etc).
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{copen}{}
|
\begin{funcdesc}{copen}{}
|
||||||
Open a new console window. Returns a console window object.
|
Open a new console window. Return a console window object.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{fopen}{fp}
|
\begin{funcdesc}{fopen}{fp}
|
||||||
Return the console window object corresponding with the given file
|
Return the console window object corresponding with the given file
|
||||||
object. \var{Fp} should be one of \var{sys.stdin}, \var{sys.stdout} or
|
object. \var{fp} should be one of \code{sys.stdin}, \code{sys.stdout} or
|
||||||
\var{sys.stderr}.
|
\code{sys.stderr}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\subsection{macconsole options object}
|
\subsection{macconsole options object}
|
||||||
|
|
@ -57,8 +57,7 @@ The title of the window.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{datadesc}{pause_atexit}
|
\begin{datadesc}{pause_atexit}
|
||||||
If set non-zero, the window will wait for user action before closing
|
If set non-zero, the window will wait for user action before closing.
|
||||||
the window.
|
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\subsection{console window object}
|
\subsection{console window object}
|
||||||
|
|
@ -88,13 +87,13 @@ Clear to end-of-line.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{inverse}{onoff}
|
\begin{funcdesc}{inverse}{onoff}
|
||||||
Enable inverse-video mode: characters with the high bit set are
|
Enable inverse-video mode:\ characters with the high bit set are
|
||||||
displayed in inverse video (this disables the upper half of a
|
displayed in inverse video (this disables the upper half of a
|
||||||
non-ascii character set).
|
non-\ASCII{} character set).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{gotoxy}{x\, y}
|
\begin{funcdesc}{gotoxy}{x\, y}
|
||||||
Set the cursor to position \code{(x, y)}.
|
Set the cursor to position \code{(\var{x}, \var{y})}.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{hide}{}
|
\begin{funcdesc}{hide}{}
|
||||||
|
|
|
||||||
|
|
@ -7,9 +7,9 @@ This module provides access to macintosh FSSpec handling, the Alias
|
||||||
Manager, finder aliases and the Standard File package.
|
Manager, finder aliases and the Standard File package.
|
||||||
|
|
||||||
Whenever a function or method expects a \var{file} argument, this
|
Whenever a function or method expects a \var{file} argument, this
|
||||||
argument can be one of three things: (1) a full or partial macintosh
|
argument can be one of three things:\ (1) a full or partial Macintosh
|
||||||
pathname, (2) an FSSpec object or (3) a 3-tuple \code{(wdRefNum,
|
pathname, (2) an FSSpec object or (3) a 3-tuple \code{(wdRefNum,
|
||||||
parID, name)} as described in Inside Mac VI. A description of aliases
|
parID, name)} as described in Inside Mac VI\@. A description of aliases
|
||||||
and the standard file package can also be found there.
|
and the standard file package can also be found there.
|
||||||
|
|
||||||
\begin{funcdesc}{FSSpec}{file}
|
\begin{funcdesc}{FSSpec}{file}
|
||||||
|
|
@ -26,15 +26,15 @@ Create an Alias object given the raw data for the alias.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{ResolveAliasFile}{file}
|
\begin{funcdesc}{ResolveAliasFile}{file}
|
||||||
Resolve an alias file. Returns a 3-tuple \code{(fsspec, isfolder,
|
Resolve an alias file. Returns a 3-tuple \code{(\var{fsspec}, \var{isfolder},
|
||||||
aliased)} where \var{fsspec} is the resulting FSSpec object,
|
\var{aliased})} where \var{fsspec} is the resulting FSSpec object,
|
||||||
\var{isfolder} is true if \var{fsspec} points to a folder and
|
\var{isfolder} is true if \var{fsspec} points to a folder and
|
||||||
\var{aliased} is true if the file was an alias in the first place
|
\var{aliased} is true if the file was an alias in the first place
|
||||||
(otherwise the FSSpec object for the file itself is returned).
|
(otherwise the FSSpec object for the file itself is returned).
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{StandardGetFile}{\optional{type\, ...}}
|
\begin{funcdesc}{StandardGetFile}{\optional{type\, ...}}
|
||||||
Present the user with a standard ``open onput file''
|
Present the user with a standard ``open input file''
|
||||||
dialog. Optionally, you can pass up to four 4-char file types to limit
|
dialog. Optionally, you can pass up to four 4-char file types to limit
|
||||||
the files the user can choose from. The function returns an FSSpec
|
the files the user can choose from. The function returns an FSSpec
|
||||||
object and a flag indicating that the user completed the dialog
|
object and a flag indicating that the user completed the dialog
|
||||||
|
|
@ -44,14 +44,14 @@ without cancelling.
|
||||||
\begin{funcdesc}{StandardPutFile}{prompt\, \optional{default}}
|
\begin{funcdesc}{StandardPutFile}{prompt\, \optional{default}}
|
||||||
Present the user with a standard ``open output file''
|
Present the user with a standard ``open output file''
|
||||||
dialog. \var{prompt} is the prompt string, and the optional
|
dialog. \var{prompt} is the prompt string, and the optional
|
||||||
\var{default} argument initialized the output file name. The function
|
\var{default} argument initializes the output file name. The function
|
||||||
returns an FSSpec object and a flag indicating that the user completed
|
returns an FSSpec object and a flag indicating that the user completed
|
||||||
the dialog without cancelling.
|
the dialog without cancelling.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{GetDirectory}{}
|
\begin{funcdesc}{GetDirectory}{}
|
||||||
Present the user with a non-standard ``select a directory''
|
Present the user with a non-standard ``select a directory''
|
||||||
dialog. Returns an FSSpec object and a success-indicator.
|
dialog. Return an FSSpec object and a success-indicator.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\subsection{FSSpec objects}
|
\subsection{FSSpec objects}
|
||||||
|
|
@ -67,13 +67,13 @@ Return the full pathname of the file described by the FSSpec object.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{as_tuple}{}
|
\begin{funcdesc}{as_tuple}{}
|
||||||
Return the \code{(wdRefNum, parID, name)} tuple of the file described
|
Return the \code{(\var{wdRefNum}, \var{parID}, \var{name})} tuple of the file described
|
||||||
by the FSSpec object.
|
by the FSSpec object.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{NewAlias}{\optional{file}}
|
\begin{funcdesc}{NewAlias}{\optional{file}}
|
||||||
Create an Alias object pointing to the file described by this
|
Create an Alias object pointing to the file described by this
|
||||||
FSSpec. If the optional \code{file} parameter is present the alias
|
FSSpec. If the optional \var{file} parameter is present the alias
|
||||||
will be relative to that file, otherwise it will be absolute.
|
will be relative to that file, otherwise it will be absolute.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -99,7 +99,7 @@ or transmitting to other programs.
|
||||||
|
|
||||||
\begin{funcdesc}{Resolve}{\optional{file}}
|
\begin{funcdesc}{Resolve}{\optional{file}}
|
||||||
Resolve the alias. If the alias was created as a relative alias you
|
Resolve the alias. If the alias was created as a relative alias you
|
||||||
should pass the file relative to which it is. Returns the FSSpec for
|
should pass the file relative to which it is. Return the FSSpec for
|
||||||
the file pointed to and a flag indicating whether the alias object
|
the file pointed to and a flag indicating whether the alias object
|
||||||
itself was modified during the search process.
|
itself was modified during the search process.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
@ -113,9 +113,9 @@ Update the alias to point to the \var{file} given. If \var{file2} is
|
||||||
present a relative alias will be created.
|
present a relative alias will be created.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
Note that is currently not possible to directly manipulate a resource
|
Note that it is currently not possible to directly manipulate a resource
|
||||||
as an alias object. Hence, after calling \var{Update} or after
|
as an alias object. Hence, after calling \var{Update} or after
|
||||||
\var{Resolve} indicates that the alias has changed the python program
|
\var{Resolve} indicates that the alias has changed the Python program
|
||||||
is responsible for getting the \var{data} from the alias object and
|
is responsible for getting the \var{data} from the alias object and
|
||||||
modifying the resource.
|
modifying the resource.
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -4,18 +4,18 @@
|
||||||
\renewcommand{\indexsubitem}{(in module macspeech)}
|
\renewcommand{\indexsubitem}{(in module macspeech)}
|
||||||
|
|
||||||
This module provides an interface to the Macintosh Speech Manager,
|
This module provides an interface to the Macintosh Speech Manager,
|
||||||
allowing you to let the macintosh utter phrases. You need a version of
|
allowing you to let the Macintosh utter phrases. You need a version of
|
||||||
the speech manager extension (version 1 and 2 have been tested) in
|
the speech manager extension (version 1 and 2 have been tested) in
|
||||||
your \code{Extensions} folder for this to work. The module does not
|
your \code{Extensions} folder for this to work. The module does not
|
||||||
provide full access to all features of the Speech Manager yet.
|
provide full access to all features of the Speech Manager yet.
|
||||||
|
|
||||||
\begin{funcdesc}{Available}{}
|
\begin{funcdesc}{Available}{}
|
||||||
Test availability of the Speech Manager extension (and, on the
|
Test availability of the Speech Manager extension (and, on the
|
||||||
PowerPC, the Speech Manager shared library). Returns 0 or 1.
|
PowerPC, the Speech Manager shared library). Return 0 or 1.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Version}{}
|
\begin{funcdesc}{Version}{}
|
||||||
Return the (integer) version of the Speech Manager.
|
Return the (integer) version number of the Speech Manager.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{SpeakString}{str}
|
\begin{funcdesc}{SpeakString}{str}
|
||||||
|
|
@ -43,7 +43,7 @@ yet possible to access the parameters of a voice.
|
||||||
\renewcommand{\indexsubitem}{(voice object method)}
|
\renewcommand{\indexsubitem}{(voice object method)}
|
||||||
|
|
||||||
\begin{funcdesc}{GetGender}{}
|
\begin{funcdesc}{GetGender}{}
|
||||||
Return the gender of the voice: 0 for male, 1 for female and -1 for neuter.
|
Return the gender of the voice:\ 0 for male, 1 for female and $-1$ for neuter.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{NewChannel}{}
|
\begin{funcdesc}{NewChannel}{}
|
||||||
|
|
@ -54,7 +54,7 @@ Return a new speech channel object using this voice.
|
||||||
A speech channel object allows you to speak strings with slightly more
|
A speech channel object allows you to speak strings with slightly more
|
||||||
control than \code{SpeakString()}, and allows you to use multiple
|
control than \code{SpeakString()}, and allows you to use multiple
|
||||||
speakers at the same time. Please note that channel pitch and rate are
|
speakers at the same time. Please note that channel pitch and rate are
|
||||||
interrelated in some way, so that to make your macintosh sing you will
|
interrelated in some way, so that to make your Macintosh sing you will
|
||||||
have to adjust both.
|
have to adjust both.
|
||||||
|
|
||||||
\renewcommand{\indexsubitem}{(speech channel object method)}
|
\renewcommand{\indexsubitem}{(speech channel object method)}
|
||||||
|
|
@ -67,7 +67,7 @@ Stop babbling.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{GetPitch}{}
|
\begin{funcdesc}{GetPitch}{}
|
||||||
Returns the current pitch of the channel, as a floating-point number.
|
Return the current pitch of the channel, as a floating-point number.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{SetPitch}{pitch}
|
\begin{funcdesc}{SetPitch}{pitch}
|
||||||
|
|
|
||||||
|
|
@ -3,11 +3,11 @@
|
||||||
\renewcommand{\indexsubitem}{(in module mactcp)}
|
\renewcommand{\indexsubitem}{(in module mactcp)}
|
||||||
|
|
||||||
This module provides an interface to the Macintosh TCP/IP driver
|
This module provides an interface to the Macintosh TCP/IP driver
|
||||||
MacTCP. There is an accompanying module \var{macdnr} which provides an
|
MacTCP\@. There is an accompanying module \code{macdnr} which provides an
|
||||||
interface to the name-server (allowing you to translate hostnames to
|
interface to the name-server (allowing you to translate hostnames to
|
||||||
ip-addresses), a module \var{MACTCP} which has symbolic names for
|
ip-addresses), a module \code{MACTCP} which has symbolic names for
|
||||||
constants constants used by MacTCP and a wrapper module \var{socket}
|
constants constants used by MacTCP and a wrapper module \code{socket}
|
||||||
which mimics the unix socket interface (as far as possible).
|
which mimics the \UNIX{} socket interface (as far as possible).
|
||||||
|
|
||||||
A complete description of the MacTCP interface can be found in the
|
A complete description of the MacTCP interface can be found in the
|
||||||
Apple MacTCP API documentation.
|
Apple MacTCP API documentation.
|
||||||
|
|
@ -26,14 +26,14 @@ Return the 32-bit integer network mask of the interface.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{TCPCreate}{size}
|
\begin{funcdesc}{TCPCreate}{size}
|
||||||
Create a TCP Stream object. \var{Size} is the size of the receive
|
Create a TCP Stream object. \var{size} is the size of the receive
|
||||||
buffer, \code{4096} is suggested by various sources.
|
buffer, \code{4096} is suggested by various sources.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{UDPCreate}{size, port}
|
\begin{funcdesc}{UDPCreate}{size, port}
|
||||||
Create a UDP stream object. \var{Size} is the size of the receive
|
Create a UDP stream object. \var{size} is the size of the receive
|
||||||
buffer (and, hence, the size of the biggest datagram you can receive
|
buffer (and, hence, the size of the biggest datagram you can receive
|
||||||
on this port). \var{Port} is the UDP port number you want to receive
|
on this port). \var{port} is the UDP port number you want to receive
|
||||||
datagrams on, a value of zero will make MacTCP select a free port.
|
datagrams on, a value of zero will make MacTCP select a free port.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -41,30 +41,30 @@ datagrams on, a value of zero will make MacTCP select a free port.
|
||||||
\renewcommand{\indexsubitem}{(TCP stream method)}
|
\renewcommand{\indexsubitem}{(TCP stream method)}
|
||||||
|
|
||||||
\begin{datadesc}{asr}
|
\begin{datadesc}{asr}
|
||||||
When set to a value different than \var{None} this should point to a
|
When set to a value different than \code{None} this should point to a
|
||||||
function with two integer parameters: an event code and a detail. This
|
function with two integer parameters:\ an event code and a detail. This
|
||||||
function will be called upon network-generated events such as urgent
|
function will be called upon network-generated events such as urgent
|
||||||
data arrival. In addition, it is called with eventcode
|
data arrival. In addition, it is called with eventcode
|
||||||
\var{MACTCP.PassiveOpenDone} when a \var{PassiveOpen} completes. This
|
\code{MACTCP.PassiveOpenDone} when a \code{PassiveOpen} completes. This
|
||||||
is a python addition to the MacTCP semantics.
|
is a Python addition to the MacTCP semantics.
|
||||||
It is safe to do further calls from the asr.
|
It is safe to do further calls from the \code{asr}.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{PassiveOpen}{port}
|
\begin{funcdesc}{PassiveOpen}{port}
|
||||||
Wait for an incoming connection on TCP port \var{port} (zero makes the
|
Wait for an incoming connection on TCP port \var{port} (zero makes the
|
||||||
system pick a free port). The call returns immedeately, and you should
|
system pick a free port). The call returns immediately, and you should
|
||||||
use \var{wait} to wait for completion. You should not issue any method
|
use \var{wait} to wait for completion. You should not issue any method
|
||||||
calls other than
|
calls other than
|
||||||
\var{wait}, \var{isdone} or \var{GetSockName} before the call
|
\code{wait}, \code{isdone} or \code{GetSockName} before the call
|
||||||
completes.
|
completes.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{wait}{}
|
\begin{funcdesc}{wait}{}
|
||||||
Wait for \var{PassiveOpen} to complete.
|
Wait for \code{PassiveOpen} to complete.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{isdone}{}
|
\begin{funcdesc}{isdone}{}
|
||||||
Return 1 if a \var{PassiveOpen} is completed.
|
Return 1 if a \code{PassiveOpen} has completed.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{GetSockName}{}
|
\begin{funcdesc}{GetSockName}{}
|
||||||
|
|
@ -73,9 +73,9 @@ Return the TCP address of this side of a connection as a 2-tuple
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{ActiveOpen}{lport\, host\, rport}
|
\begin{funcdesc}{ActiveOpen}{lport\, host\, rport}
|
||||||
Open an outgoing connection to TCP address \code{(host, rport)}. Use
|
Open an outgoing connection to TCP address \code{(\var{host}, \var{rport})}. Use
|
||||||
local port \var{lport} (zero makes the system pick a free port). This
|
local port \var{lport} (zero makes the system pick a free port). This
|
||||||
call blocks until the connection is established.
|
call blocks until the connection has been established.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Send}{buf\, push\, urgent}
|
\begin{funcdesc}{Send}{buf\, push\, urgent}
|
||||||
|
|
@ -87,7 +87,7 @@ are flags as specified by the TCP standard.
|
||||||
Receive data. The call returns when \var{timeout} seconds have passed
|
Receive data. The call returns when \var{timeout} seconds have passed
|
||||||
or when (according to the MacTCP documentation) ``a reasonable amount
|
or when (according to the MacTCP documentation) ``a reasonable amount
|
||||||
of data has been received''. The return value is a 3-tuple
|
of data has been received''. The return value is a 3-tuple
|
||||||
\code{(data, urgent, mark)}. If urgent data is outstanding \var{Rcv}
|
\code{(\var{data}, \var{urgent}, \var{mark})}. If urgent data is outstanding \code{Rcv}
|
||||||
will always return that before looking at any normal data. The first
|
will always return that before looking at any normal data. The first
|
||||||
call returning urgent data will have the \var{urgent} flag set, the
|
call returning urgent data will have the \var{urgent} flag set, the
|
||||||
last will have the \var{mark} flag set.
|
last will have the \var{mark} flag set.
|
||||||
|
|
@ -95,7 +95,7 @@ last will have the \var{mark} flag set.
|
||||||
|
|
||||||
\begin{funcdesc}{Close}{}
|
\begin{funcdesc}{Close}{}
|
||||||
Tell MacTCP that no more data will be transmitted on this
|
Tell MacTCP that no more data will be transmitted on this
|
||||||
connection. The call returnes when all data has been acknowledged by
|
connection. The call returns when all data has been acknowledged by
|
||||||
the receiving side.
|
the receiving side.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
|
|
@ -131,7 +131,7 @@ amtUnackedData} is what you can pass to \code{Send} without blocking.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{datadesc}{amtUnreadData}
|
\begin{datadesc}{amtUnreadData}
|
||||||
The number of bytes received but not yet read (what you can \var{Recv}
|
The number of bytes received but not yet read (what you can \code{Recv}
|
||||||
without blocking).
|
without blocking).
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -145,7 +145,7 @@ about UDP.
|
||||||
|
|
||||||
\begin{datadesc}{asr}
|
\begin{datadesc}{asr}
|
||||||
The asynchronous service routine to be called on events such as
|
The asynchronous service routine to be called on events such as
|
||||||
datagram arrival without outstanding \var{Read} call. The asr has a
|
datagram arrival without outstanding \code{Read} call. The \code{asr} has a
|
||||||
single argument, the event code.
|
single argument, the event code.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
|
|
@ -154,8 +154,8 @@ A read-only member giving the port number of this UDP stream.
|
||||||
\end{datadesc}
|
\end{datadesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Read}{timeout}
|
\begin{funcdesc}{Read}{timeout}
|
||||||
Read a datagram, waiting at most \var{timeout} seconds (-1 is
|
Read a datagram, waiting at most \var{timeout} seconds ($-1$ is
|
||||||
indefinite). Returns the data.
|
indefinite). Return the data.
|
||||||
\end{funcdesc}
|
\end{funcdesc}
|
||||||
|
|
||||||
\begin{funcdesc}{Write}{host\, port\, buf}
|
\begin{funcdesc}{Write}{host\, port\, buf}
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue