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What's New in Python 3.2: update Unicode section

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Victor Stinner 2010-10-29 00:57:35 +00:00
parent 6f35eda4d9
commit 47ce965562
1 changed files with 21 additions and 10 deletions
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Doc/whatsnew/3.2.rst
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@ -573,13 +573,29 @@ A number of small performance enhancements have been added:
and the Unladen Swallow team in :issue:`9410` and :issue:`3873`.)
Filenames and Unicode
=====================
Unicode
=======
The :mod:`os` module has two new functions: :func:`~os.fsencode` and
:func:`~os.fsdecode`.
:func:`~os.fsdecode`. Add :data:`os.environb`: bytes version of
:data:`os.environ`, :func:`os.getenvb` function and
:data:`os.supports_bytes_environ` constant.
.. XXX mention Victor's improvements for support of undecodable filenames.
``'mbcs'`` encoding doesn't ignore the error handler argument anymore. By
default (strict mode), it raises an UnicodeDecodeError on undecodable byte
sequence and UnicodeEncodeError on unencodable character. To get the ``'mbcs'``
encoding of Python 3.1, use ``'ignore'`` error handler to decode and
``'replace'`` error handler to encode. ``'mbcs'`` supports ``'strict'`` and
``'ignore'`` error handlers for decoding, and ``'strict'`` and ``'replace'``
for encoding.
On Mac OS X, Python uses ``'utf-8'`` to decode the command line arguments,
instead of the locale encoding (which is ISO-8859-1 if the ``LANG`` environment
variable is not set).
By default, tarfile uses ``'utf-8'`` encoding on Windows (instead of
``'mbcs'``), and the ``'surrogateescape'`` error handler on all operating
systems.
.. IDLE
@ -642,9 +658,4 @@ require changes to your code:
instead; the new type has a well-defined interface for passing typing safety
information and a less complicated signature for calling a destructor.
* mbcs encoding doesn't ignore the error handler argument anymore. By default
(strict mode), it raises an UnicodeDecodeError on undecodable byte sequence
and UnicodeEncodeError on unencodable character. To get the mbcs encoding of
Python 3.1, use ``'ignore'`` error handler to decode and ``'replace'`` error
handler to encode. mbcs now supports ``'strict'`` and ``'ignore'`` error
handlers for decoding, and ``'strict'`` and ``'replace'`` for encoding.
* Remove sys.setfilesystemencoding() function: it was broken by design.