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Patch #923098: Share interned strings in marshal.

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Martin v. Löwis 2004-06-27 16:51:46 +00:00
parent 8d97e33bb7
commit ef82d2fdfe
6 changed files with 122 additions and 31 deletions
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18
Doc/lib/libmarshal.tex
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@ -73,6 +73,9 @@ The module defines these functions:
a \exception{ValueError} exception is raised --- but garbage data
will also be written to the file. The object will not be properly
read back by \function{load()}.
\versionadded[The \var{version} argument indicates the data
format that \code{dumps} should use.]{2.4}
\end{funcdesc}
\begin{funcdesc}{load}{file}
@ -86,11 +89,14 @@ The module defines these functions:
\code{None} for the unmarshallable type.}
\end{funcdesc}
\begin{funcdesc}{dumps}{value}
\begin{funcdesc}{dumps}{value\optional{, version}}
Return the string that would be written to a file by
\code{dump(\var{value}, \var{file})}. The value must be a supported
type. Raise a \exception{ValueError} exception if value has (or
contains an object that has) an unsupported type.
\versionadded[The \var{version} argument indicates the data
format that \code{dumps} should use.]{2.4}
\end{funcdesc}
\begin{funcdesc}{loads}{string}
@ -98,3 +104,13 @@ The module defines these functions:
\exception{EOFError}, \exception{ValueError} or
\exception{TypeError}. Extra characters in the string are ignored.
\end{funcdesc}
In addition, the following constants are defined:
\begin{datadesc}{version}
Indicates the format that the module uses. Version 0 is the
historical format, version 1 (added in Python 2.4) shares
interned strings. The current version is 1.
\versionadded{2.4}
\end{datadesc}