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svn+ssh://pythondev@svn.python.org/python/trunk ........ r72558 | benjamin.peterson | 2009-05-11 01:52:09 +0200 (Mo, 11 Mai 2009) | 1 line sys.setdefaultencoding() strikes me as a bad example ........ r72745 | benjamin.peterson | 2009-05-17 16:16:29 +0200 (So, 17 Mai 2009) | 1 line ignore .rst files in sphinx its self ........ r72750 | benjamin.peterson | 2009-05-17 18:59:27 +0200 (So, 17 Mai 2009) | 1 line chop off slash ........ r72876 | benjamin.peterson | 2009-05-23 22:59:09 +0200 (Sa, 23 Mai 2009) | 1 line remove mention of old ctypes version ........ r73042 | benjamin.peterson | 2009-05-30 05:10:52 +0200 (Sa, 30 Mai 2009) | 1 line no fdatasync on macos ........ r73045 | georg.brandl | 2009-05-30 09:26:04 +0200 (Sa, 30 Mai 2009) | 1 line #6146: fix markup bug. ........ r73046 | georg.brandl | 2009-05-30 09:31:25 +0200 (Sa, 30 Mai 2009) | 1 line Use preferred form of raising exceptions. ........ r73047 | georg.brandl | 2009-05-30 12:33:23 +0200 (Sa, 30 Mai 2009) | 1 line Fix some more small markup problems. ........ r73048 | georg.brandl | 2009-05-30 12:34:25 +0200 (Sa, 30 Mai 2009) | 1 line Fix markup problem. ........ r73069 | benjamin.peterson | 2009-05-31 02:42:42 +0200 (So, 31 Mai 2009) | 1 line fix signature ........ r73089 | andrew.kuchling | 2009-06-01 02:14:19 +0200 (Mo, 01 Jun 2009) | 1 line The class for regexes isn't called RegexObject any more; correct the text ........ r73163 | georg.brandl | 2009-06-03 09:25:35 +0200 (Mi, 03 Jun 2009) | 1 line Use the preferred form of raise statements in the docs. ........ r73186 | georg.brandl | 2009-06-03 23:21:09 +0200 (Mi, 03 Jun 2009) | 1 line #6174: fix indentation in code example. ........ r73213 | georg.brandl | 2009-06-04 12:15:57 +0200 (Do, 04 Jun 2009) | 1 line #5967: note that the C slicing APIs do not support negative indices. ........ r73215 | georg.brandl | 2009-06-04 12:22:31 +0200 (Do, 04 Jun 2009) | 1 line #6176: fix man page section for flock(2). ........ r73217 | georg.brandl | 2009-06-04 12:27:21 +0200 (Do, 04 Jun 2009) | 1 line #6175: document that inet_aton supports alternate input formats with less than three dots. ........ r73257 | georg.brandl | 2009-06-06 19:50:05 +0200 (Sa, 06 Jun 2009) | 1 line #6211: elaborate a bit on ways to call the function. ........ r73258 | georg.brandl | 2009-06-06 19:51:31 +0200 (Sa, 06 Jun 2009) | 1 line #6204: use a real reference instead of "see later". ........ r73260 | georg.brandl | 2009-06-06 20:21:58 +0200 (Sa, 06 Jun 2009) | 1 line #6224: s/JPython/Jython/, and remove one link to a module nine years old. ........
218 lines
8.1 KiB
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218 lines
8.1 KiB
ReStructuredText
.. highlightlang:: c
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.. _sequence:
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Sequence Protocol
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=================
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.. cfunction:: int PySequence_Check(PyObject *o)
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Return ``1`` if the object provides sequence protocol, and ``0`` otherwise.
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This function always succeeds.
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.. cfunction:: Py_ssize_t PySequence_Size(PyObject *o)
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Py_ssize_t PySequence_Length(PyObject *o)
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.. index:: builtin: len
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Returns the number of objects in sequence *o* on success, and ``-1`` on failure.
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For objects that do not provide sequence protocol, this is equivalent to the
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Python expression ``len(o)``.
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.. versionchanged:: 2.5
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These functions returned an :ctype:`int` type. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: PyObject* PySequence_Concat(PyObject *o1, PyObject *o2)
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Return the concatenation of *o1* and *o2* on success, and *NULL* on failure.
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This is the equivalent of the Python expression ``o1 + o2``.
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.. cfunction:: PyObject* PySequence_Repeat(PyObject *o, Py_ssize_t count)
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Return the result of repeating sequence object *o* *count* times, or *NULL* on
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failure. This is the equivalent of the Python expression ``o * count``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *count*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: PyObject* PySequence_InPlaceConcat(PyObject *o1, PyObject *o2)
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Return the concatenation of *o1* and *o2* on success, and *NULL* on failure.
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The operation is done *in-place* when *o1* supports it. This is the equivalent
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of the Python expression ``o1 += o2``.
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.. cfunction:: PyObject* PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count)
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Return the result of repeating sequence object *o* *count* times, or *NULL* on
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failure. The operation is done *in-place* when *o* supports it. This is the
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equivalent of the Python expression ``o *= count``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *count*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: PyObject* PySequence_GetItem(PyObject *o, Py_ssize_t i)
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Return the *i*\ th element of *o*, or *NULL* on failure. This is the equivalent of
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the Python expression ``o[i]``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: PyObject* PySequence_GetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2)
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Return the slice of sequence object *o* between *i1* and *i2*, or *NULL* on
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failure. This is the equivalent of the Python expression ``o[i1:i2]``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i1* and *i2*. This might
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require changes in your code for properly supporting 64-bit systems.
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.. cfunction:: int PySequence_SetItem(PyObject *o, Py_ssize_t i, PyObject *v)
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Assign object *v* to the *i*\ th element of *o*. Returns ``-1`` on failure. This
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is the equivalent of the Python statement ``o[i] = v``. This function *does
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not* steal a reference to *v*.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: int PySequence_DelItem(PyObject *o, Py_ssize_t i)
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Delete the *i*\ th element of object *o*. Returns ``-1`` on failure. This is the
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equivalent of the Python statement ``del o[i]``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: int PySequence_SetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2, PyObject *v)
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Assign the sequence object *v* to the slice in sequence object *o* from *i1* to
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*i2*. This is the equivalent of the Python statement ``o[i1:i2] = v``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i1* and *i2*. This might
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require changes in your code for properly supporting 64-bit systems.
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.. cfunction:: int PySequence_DelSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2)
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Delete the slice in sequence object *o* from *i1* to *i2*. Returns ``-1`` on
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failure. This is the equivalent of the Python statement ``del o[i1:i2]``.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i1* and *i2*. This might
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require changes in your code for properly supporting 64-bit systems.
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.. cfunction:: Py_ssize_t PySequence_Count(PyObject *o, PyObject *value)
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Return the number of occurrences of *value* in *o*, that is, return the number
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of keys for which ``o[key] == value``. On failure, return ``-1``. This is
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equivalent to the Python expression ``o.count(value)``.
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.. versionchanged:: 2.5
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This function returned an :ctype:`int` type. This might require changes
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in your code for properly supporting 64-bit systems.
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.. cfunction:: int PySequence_Contains(PyObject *o, PyObject *value)
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Determine if *o* contains *value*. If an item in *o* is equal to *value*,
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return ``1``, otherwise return ``0``. On error, return ``-1``. This is
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equivalent to the Python expression ``value in o``.
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.. cfunction:: Py_ssize_t PySequence_Index(PyObject *o, PyObject *value)
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Return the first index *i* for which ``o[i] == value``. On error, return
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``-1``. This is equivalent to the Python expression ``o.index(value)``.
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.. versionchanged:: 2.5
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This function returned an :ctype:`int` type. This might require changes
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in your code for properly supporting 64-bit systems.
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.. cfunction:: PyObject* PySequence_List(PyObject *o)
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Return a list object with the same contents as the arbitrary sequence *o*. The
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returned list is guaranteed to be new.
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.. cfunction:: PyObject* PySequence_Tuple(PyObject *o)
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.. index:: builtin: tuple
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Return a tuple object with the same contents as the arbitrary sequence *o* or
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*NULL* on failure. If *o* is a tuple, a new reference will be returned,
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otherwise a tuple will be constructed with the appropriate contents. This is
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equivalent to the Python expression ``tuple(o)``.
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.. cfunction:: PyObject* PySequence_Fast(PyObject *o, const char *m)
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Returns the sequence *o* as a tuple, unless it is already a tuple or list, in
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which case *o* is returned. Use :cfunc:`PySequence_Fast_GET_ITEM` to access the
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members of the result. Returns *NULL* on failure. If the object is not a
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sequence, raises :exc:`TypeError` with *m* as the message text.
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.. cfunction:: PyObject* PySequence_Fast_GET_ITEM(PyObject *o, Py_ssize_t i)
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Return the *i*\ th element of *o*, assuming that *o* was returned by
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:cfunc:`PySequence_Fast`, *o* is not *NULL*, and that *i* is within bounds.
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: PyObject** PySequence_Fast_ITEMS(PyObject *o)
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Return the underlying array of PyObject pointers. Assumes that *o* was returned
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by :cfunc:`PySequence_Fast` and *o* is not *NULL*.
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Note, if a list gets resized, the reallocation may relocate the items array.
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So, only use the underlying array pointer in contexts where the sequence
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cannot change.
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.. versionadded:: 2.4
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.. cfunction:: PyObject* PySequence_ITEM(PyObject *o, Py_ssize_t i)
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Return the *i*\ th element of *o* or *NULL* on failure. Macro form of
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:cfunc:`PySequence_GetItem` but without checking that
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:cfunc:`PySequence_Check(o)` is true and without adjustment for negative
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indices.
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.. versionadded:: 2.3
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.. versionchanged:: 2.5
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This function used an :ctype:`int` type for *i*. This might require
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changes in your code for properly supporting 64-bit systems.
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.. cfunction:: Py_ssize_t PySequence_Fast_GET_SIZE(PyObject *o)
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Returns the length of *o*, assuming that *o* was returned by
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:cfunc:`PySequence_Fast` and that *o* is not *NULL*. The size can also be
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gotten by calling :cfunc:`PySequence_Size` on *o*, but
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:cfunc:`PySequence_Fast_GET_SIZE` is faster because it can assume *o* is a list
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or tuple.
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