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\section{\module{StringIO} ---
Read and write strings as files}
\declaremodule{standard}{StringIO}
\modulesynopsis{Read and write strings as if they were files.}
This module implements a file-like class, \class{StringIO},
that reads and writes a string buffer (also known as \emph{memory
files}). See the description on file objects for operations (section
\ref{bltin-file-objects}).
\begin{classdesc}{StringIO}{\optional{buffer}}
When a \class{StringIO} object is created, it can be initialized
to an existing string by passing the string to the constructor.
If no string is given, the \class{StringIO} will start empty.
\end{classdesc}
The following methods of \class{StringIO} objects require special
mention:
\begin{methoddesc}{getvalue}{}
Retrieve the entire contents of the ``file'' at any time before the
\class{StringIO} object's \method{close()} method is called.
\end{methoddesc}
\begin{methoddesc}{close}{}
Free the memory buffer.
\end{methoddesc}
\section{\module{cStringIO} ---
Faster version of \module{StringIO}}
\declaremodule{builtin}{cStringIO}
\modulesynopsis{Faster version of \module{StringIO}, but not
subclassable.}
\moduleauthor{Jim Fulton}{jfulton@digicool.com}
\sectionauthor{Fred L. Drake, Jr.}{fdrake@acm.org}
The module \module{cStringIO} provides an interface similar to that of
the \refmodule{StringIO} module. Heavy use of \class{StringIO.StringIO}
objects can be made more efficient by using the function
\function{StringIO()} from this module instead.
Since this module provides a factory function which returns objects of
built-in types, there's no way to build your own version using
subclassing. Use the original \refmodule{StringIO} module in that case.
The following data objects are provided as well:
\begin{datadesc}{InputType}
The type object of the objects created by calling
\function{StringIO} with a string parameter.
\end{datadesc}
\begin{datadesc}{OutputType}
The type object of the objects returned by calling
\function{StringIO} with no parameters.
\end{datadesc}
There is a C API to the module as well; refer to the module source for
more information.
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