Merged revisions 82368 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r82368 | benjamin.peterson | 2010-06-29 10:18:02 -0500 (Tue, 29 Jun 2010) | 1 line

  group cStringIO docs under its factory function
........
This commit is contained in:
Benjamin Peterson 2010-06-29 15:26:43 +00:00
parent 34d2ebec5f
commit 60fa0bf4bd
1 changed files with 20 additions and 15 deletions

View File

@ -71,24 +71,29 @@ The module :mod:`cStringIO` provides an interface similar to that of the
made more efficient by using the function :func:`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. It's not
possible to set attributes on it. Use the original :mod:`StringIO` module in
those cases.
Unlike the memory files implemented by the :mod:`StringIO` module, those
provided by this module are not able to accept Unicode strings that cannot be
encoded as plain ASCII strings.
.. function:: StringIO([s])
Return a StringIO-like stream for reading or writing.
Since this is a factory function which returns objects of built-in types,
there's no way to build your own version using subclassing. It's not
possible to set attributes on it. Use the original :mod:`StringIO` module in
those cases.
Unlike the :mod:`StringIO` module, this module is not able to accept Unicode
strings that cannot be encoded as plain ASCII strings. Calling
:func:`StringIO` with a Unicode string parameter populates the object with
the buffer representation of the Unicode string instead of encoding the
string.
Another difference from the :mod:`StringIO` module is that calling
:func:`StringIO` with a string parameter creates a read-only object. Unlike an
object created without a string parameter, it does not have write methods.
These objects are not generally visible. They turn up in tracebacks as
:class:`StringI` and :class:`StringO`.
Calling :func:`StringIO` with a Unicode string parameter populates
the object with the buffer representation of the Unicode string, instead of
encoding the string.
Another difference from the :mod:`StringIO` module is that calling
:func:`StringIO` with a string parameter creates a read-only object. Unlike an
object created without a string parameter, it does not have write methods.
These objects are not generally visible. They turn up in tracebacks as
:class:`StringI` and :class:`StringO`.
The following data objects are provided as well: