2011 lines
76 KiB
Plaintext
2011 lines
76 KiB
Plaintext
+++++++++++
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Python News
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+++++++++++
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(editors: check NEWS.help for information about editing NEWS using ReST.)
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What's New in Python 2.5 release candidate 1?
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=============================================
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*Release date: XX-AUG-2006*
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Core and builtins
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-----------------
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Library
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-------
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- Bug #1531405, format_exception no longer raises an exception if
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str(exception) raised an exception.
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Extension Modules
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-----------------
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Tests
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-----
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Build
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-----
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Mac
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---
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What's New in Python 2.5 beta 3?
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================================
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*Release date: 03-AUG-2006*
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Core and builtins
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-----------------
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- _PyWeakref_GetWeakrefCount() now returns a Py_ssize_t, it previously
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returned a long (see PEP 353).
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- Bug #1515471: string.replace() accepts character buffers again.
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- Add PyErr_WarnEx() so C code can pass the stacklevel to warnings.warn().
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This provides the proper warning for struct.pack().
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PyErr_Warn() is now deprecated in favor of PyErr_WarnEx().
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- Patch #1531113: Fix augmented assignment with yield expressions.
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Also fix a SystemError when trying to assign to yield expressions.
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- Bug #1529871: The speed enhancement patch #921466 broke Python's compliance
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with PEP 302. This was fixed by adding an ``imp.NullImporter`` type that is
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used in ``sys.path_importer_cache`` to cache non-directory paths and avoid
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excessive filesystem operations during imports.
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- Bug #1521947: When checking for overflow, ``PyOS_strtol()`` used some
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operations on signed longs that are formally undefined by C.
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Unfortunately, at least one compiler now cares about that, so complicated
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the code to make that compiler happy again.
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- Bug #1524310: Properly report errors from FindNextFile in os.listdir.
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- Patch #1232023: Stop including current directory in search
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path on Windows.
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- Fix some potential crashes found with failmalloc.
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- Fix warnings reported by Klocwork's static analysis tool.
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- Bug #1512814, Fix incorrect lineno's when code within a function
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had more than 255 blank lines.
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- Patch #1521179: Python now accepts the standard options ``--help`` and
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``--version`` as well as ``/?`` on Windows.
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- Bug #1520864: unpacking singleton tuples in a 'for' loop (for x, in) works
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again. Fixing this problem required changing the .pyc magic number.
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This means that .pyc files generated before 2.5c1 will be regenerated.
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- Bug #1524317: Compiling Python ``--without-threads`` failed.
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The Python core compiles again then, and, in a build without threads, the
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new ``sys._current_frames()`` returns a dictionary with one entry,
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mapping the faux "thread id" 0 to the current frame.
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- Bug #1525447: build on MacOS X on a case-sensitive filesystem.
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Library
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-------
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- Correction of patch #1455898: In the mbcs decoder, set final=False
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for stream decoder, but final=True for the decode function.
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- os.urandom no longer masks unrelated exceptions like SystemExit or
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KeyboardInterrupt.
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- Bug #1525866: Don't copy directory stat times in
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shutil.copytree on Windows
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- Bug #1002398: The documentation for os.path.sameopenfile now correctly
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refers to file descriptors, not file objects.
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- Rename of the xml package to xmlcore, and the import hackery done to
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make it appear at both names, has been removed. Bug #1511497,
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#1513611, and probably others.
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- Bug #1441397: The compiler module now recognizes module and function
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docstrings correctly as it did in Python 2.4.
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- Bug #1529297: The rewrite of doctest for Python 2.4 unintentionally
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lost that tests are sorted by name before being run. This rarely
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matters for well-written tests, but can create baffling symptoms if
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side effects from one test to the next affect outcomes. ``DocTestFinder``
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has been changed to sort the list of tests it returns.
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- The distutils version has been changed to 2.5.0, and are now kept
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in sync with sys.version_info[:3].
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- Bug #978833: Really close underlying socket in _socketobject.close.
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- Bug #1459963: urllib and urllib2 now normalize HTTP header names correctly
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with title().
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- Patch #1525766: In pkgutil.walk_packages, correctly pass the onerror callback
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to recursive calls and call it with the failing package name.
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- Bug #1525817: Don't truncate short lines in IDLE's tool tips.
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- Patch #1515343: Fix printing of deprecated string exceptions with a
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value in the traceback module.
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- Resync optparse with Optik 1.5.3: minor tweaks for/to tests.
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- Patch #1524429: Use repr() instead of backticks in Tkinter again.
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- Bug #1520914: Change time.strftime() to accept a zero for any position in its
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argument tuple. For arguments where zero is illegal, the value is forced to
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the minimum value that is correct. This is to support an undocumented but
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common way people used to fill in inconsequential information in the time
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tuple pre-2.4.
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- Patch #1220874: Update the binhex module for Mach-O.
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- The email package has improved RFC 2231 support, specifically for
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recognizing the difference between encoded (name*0*=<blah>) and non-encoded
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(name*0=<blah>) parameter continuations. This may change the types of
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values returned from email.message.Message.get_param() and friends.
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Specifically in some cases where non-encoded continuations were used,
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get_param() used to return a 3-tuple of (None, None, string) whereas now it
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will just return the string (since non-encoded continuations don't have
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charset and language parts).
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Also, whereas % values were decoded in all parameter continuations, they are
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now only decoded in encoded parameter parts.
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- Bug #1517990: IDLE keybindings on MacOS X now work correctly
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- Bug #1517996: IDLE now longer shows the default Tk menu when a
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path browser, class browser or debugger is the frontmost window on MacOS X
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- Patch #1520294: Support for getset and member descriptors in types.py,
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inspect.py, and pydoc.py. Specifically, this allows for querying the type
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of an object against these built-in types and more importantly, for getting
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their docstrings printed in the interactive interpreter's help() function.
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Extension Modules
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-----------------
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- Patch #1519025 and bug #926423: If a KeyboardInterrupt occurs during
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a socket operation on a socket with a timeout, the exception will be
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caught correctly. Previously, the exception was not caught.
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- Patch #1529514: The _ctypes extension is now compiled on more
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openbsd target platforms.
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- The ``__reduce__()`` method of the new ``collections.defaultdict`` had
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a memory leak, affecting pickles and deep copies.
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- Bug #1471938: Fix curses module build problem on Solaris 8; patch by
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Paul Eggert.
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- Patch #1448199: Release interpreter lock in _winreg.ConnectRegistry.
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- Patch #1521817: Index range checking on ctypes arrays containing
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exactly one element enabled again. This allows iterating over these
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arrays, without the need to check the array size before.
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- Bug #1521375: When the code in ctypes.util.find_library was
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run with root privileges, it could overwrite or delete
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/dev/null in certain cases; this is now fixed.
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- Bug #1467450: On Mac OS X 10.3, RTLD_GLOBAL is now used as the
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default mode for loading shared libraries in ctypes.
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- Because of a misspelled preprocessor symbol, ctypes was always
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compiled without thread support; this is now fixed.
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- pybsddb Bug #1527939: bsddb module DBEnv dbremove and dbrename
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methods now allow their database parameter to be None as the
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sleepycat API allows.
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- Bug #1526460: Fix socketmodule compile on NetBSD as it has a different
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bluetooth API compared with Linux and FreeBSD.
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Tests
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-----
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- Bug #1501330: Change test_ossaudiodev to be much more tolerant in terms of
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how long the test file should take to play. Now accepts taking 2.93 secs
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(exact time) +/- 10% instead of the hard-coded 3.1 sec.
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- Patch #1529686: The standard tests ``test_defaultdict``, ``test_iterlen``,
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``test_uuid`` and ``test_email_codecs`` didn't actually run any tests when
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run via ``regrtest.py``. Now they do.
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Build
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-----
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- Bug #1439538: Drop usage of test -e in configure as it is not portable.
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Mac
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---
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- PythonLauncher now works correctly when the path to the script contains
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characters that are treated specially by the shell (such as quotes).
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- Bug #1527397: PythonLauncher now launches scripts with the working directory
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set to the directory that contains the script instead of the user home
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directory. That latter was an implementation accident and not what users
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expect.
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What's New in Python 2.5 beta 2?
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================================
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*Release date: 11-JUL-2006*
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Core and builtins
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-----------------
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- Bug #1441486: The literal representation of -(sys.maxint - 1)
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again evaluates to a int object, not a long.
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- Bug #1501934: The scope of global variables that are locally assigned
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using augmented assignment is now correctly determined.
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- Bug #927248: Recursive method-wrapper objects can now safely
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be released.
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- Bug #1417699: Reject locale-specific decimal point in float()
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and atof().
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- Bug #1511381: codec_getstreamcodec() in codec.c is corrected to
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omit a default "error" argument for NULL pointer. This allows
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the parser to take a codec from cjkcodecs again.
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- Bug #1519018: 'as' is now validated properly in import statements.
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- On 64 bit systems, int literals that use less than 64 bits are
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now ints rather than longs.
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- Bug #1512814, Fix incorrect lineno's when code at module scope
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started after line 256.
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- New function ``sys._current_frames()`` returns a dict mapping thread
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id to topmost thread stack frame. This is for expert use, and is
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especially useful for debugging application deadlocks. The functionality
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was previously available in Fazal Majid's ``threadframe`` extension
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module, but it wasn't possible to do this in a wholly threadsafe way from
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an extension.
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Library
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-------
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- Bug #1257728: Mention Cygwin in distutils error message about a missing
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VS 2003.
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- Patch #1519566: Update turtle demo, make begin_fill idempotent.
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- Bug #1508010: msvccompiler now requires the DISTUTILS_USE_SDK
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environment variable to be set in order to the SDK environment
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for finding the compiler, include files, etc.
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- Bug #1515998: Properly generate logical ids for files in bdist_msi.
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- warnings.py now ignores ImportWarning by default
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- string.Template() now correctly handles tuple-values. Previously,
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multi-value tuples would raise an exception and single-value tuples would
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be treated as the value they contain, instead.
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- Bug #822974: Honor timeout in telnetlib.{expect,read_until}
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even if some data are received.
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- Bug #1267547: Put proper recursive setup.py call into the
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spec file generated by bdist_rpm.
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- Bug #1514693: Update turtle's heading when switching between
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degrees and radians.
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- Reimplement turtle.circle using a polyline, to allow correct
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filling of arcs.
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- Bug #1514703: Only setup canvas window in turtle when the canvas
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is created.
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- Bug #1513223: .close() of a _socketobj now releases the underlying
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socket again, which then gets closed as it becomes unreferenced.
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- Bug #1504333: Make sgmllib support angle brackets in quoted
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attribute values.
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- Bug #853506: Fix IPv6 address parsing in unquoted attributes in
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sgmllib ('[' and ']' were not accepted).
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- Fix a bug in the turtle module's end_fill function.
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- Bug #1510580: The 'warnings' module improperly required that a Warning
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category be either a types.ClassType and a subclass of Warning. The proper
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check is just that it is a subclass with Warning as the documentation states.
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- The compiler module now correctly compiles the new try-except-finally
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statement (bug #1509132).
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- The wsgiref package is now installed properly on Unix.
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- A bug was fixed in logging.config.fileConfig() which caused a crash on
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shutdown when fileConfig() was called multiple times.
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- The sqlite3 module did cut off data from the SQLite database at the first
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null character before sending it to a custom converter. This has been fixed
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now.
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Extension Modules
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-----------------
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- #1494314: Fix a regression with high-numbered sockets in 2.4.3. This
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means that select() on sockets > FD_SETSIZE (typically 1024) work again.
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The patch makes sockets use poll() internally where available.
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- Assigning None to pointer type fields in ctypes structures possible
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overwrote the wrong fields, this is fixed now.
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- Fixed a segfault in _ctypes when ctypes.wintypes were imported
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on non-Windows platforms.
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- Bug #1518190: The ctypes.c_void_p constructor now accepts any
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integer or long, without range checking.
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- Patch #1517790: It is now possible to use custom objects in the ctypes
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foreign function argtypes sequence as long as they provide a from_param
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method, no longer is it required that the object is a ctypes type.
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- The '_ctypes' extension module now works when Python is configured
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with the --without-threads option.
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- Bug #1513646: os.access on Windows now correctly determines write
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access, again.
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- Bug #1512695: cPickle.loads could crash if it was interrupted with
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a KeyboardInterrupt.
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- Bug #1296433: parsing XML with a non-default encoding and
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a CharacterDataHandler could crash the interpreter in pyexpat.
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- Patch #1516912: improve Modules support for OpenVMS.
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Build
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-----
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- Automate Windows build process for the Win64 SSL module.
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- 'configure' now detects the zlib library the same way as distutils.
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Previously, the slight difference could cause compilation errors of the
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'zlib' module on systems with more than one version of zlib.
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- The MSI compileall step was fixed to also support a TARGETDIR
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with spaces in it.
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- Bug #1517388: sqlite3.dll is now installed on Windows independent
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of Tcl/Tk.
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- Bug #1513032: 'make install' failed on FreeBSD 5.3 due to lib-old
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trying to be installed even though it's empty.
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Tests
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-----
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- Call os.waitpid() at the end of tests that spawn child processes in order
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to minimize resources (zombies).
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Documentation
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-------------
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- Cover ImportWarning, PendingDeprecationWarning and simplefilter() in the
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documentation for the warnings module.
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- Patch #1509163: MS Toolkit Compiler no longer available.
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- Patch #1504046: Add documentation for xml.etree.
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|
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What's New in Python 2.5 beta 1?
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================================
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*Release date: 20-JUN-2006*
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Core and builtins
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-----------------
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|
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- Patch #1507676: Error messages returned by invalid abstract object operations
|
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(such as iterating over an integer) have been improved and now include the
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type of the offending object to help with debugging.
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- Bug #992017: A classic class that defined a __coerce__() method that returned
|
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its arguments swapped would infinitely recurse and segfault the interpreter.
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- Fix the socket tests so they can be run concurrently.
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- Removed 5 integers from C frame objects (PyFrameObject).
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f_nlocals, f_ncells, f_nfreevars, f_stack_size, f_restricted.
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|
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- Bug #532646: object.__call__() will continue looking for the __call__
|
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attribute on objects until one without one is found. This leads to recursion
|
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when you take a class and set its __call__ attribute to an instance of the
|
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class. Originally fixed for classic classes, but this fix is for new-style.
|
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Removes the infinite_rec_3 crasher.
|
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|
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- The string and unicode methods startswith() and endswith() now accept
|
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a tuple of prefixes/suffixes to look for. Implements RFE #1491485.
|
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|
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- Buffer objects, at the C level, never used the char buffer
|
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implementation even when the char buffer for the wrapped object was
|
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explicitly requested (originally returned the read or write buffer).
|
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Now a TypeError is raised if the char buffer is not present but is
|
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requested.
|
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|
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- Patch #1346214: Statements like "if 0: suite" are now again optimized
|
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away like they were in Python 2.4.
|
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|
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- Builtin exceptions are now full-blown new-style classes instead of
|
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instances pretending to be classes, which speeds up exception handling
|
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by about 80% in comparison to 2.5a2.
|
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|
||
- Patch #1494554: Update unicodedata.numeric and unicode.isnumeric to
|
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Unicode 4.1.
|
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|
||
- Patch #921466: sys.path_importer_cache is now used to cache valid and
|
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invalid file paths for the built-in import machinery which leads to
|
||
fewer open calls on startup.
|
||
|
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- Patch #1442927: ``long(str, base)`` is now up to 6x faster for non-power-
|
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of-2 bases. The largest speedup is for inputs with about 1000 decimal
|
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digits. Conversion from non-power-of-2 bases remains quadratic-time in
|
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the number of input digits (it was and remains linear-time for bases
|
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2, 4, 8, 16 and 32).
|
||
|
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- Bug #1334662: ``int(string, base)`` could deliver a wrong answer
|
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when ``base`` was not 2, 4, 8, 10, 16 or 32, and ``string`` represented
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an integer close to ``sys.maxint``. This was repaired by patch
|
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#1335972, which also gives a nice speedup.
|
||
|
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- Patch #1337051: reduced size of frame objects.
|
||
|
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- PyErr_NewException now accepts a tuple of base classes as its
|
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"base" parameter.
|
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|
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- Patch #876206: function call speedup by retaining allocated frame
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objects.
|
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|
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- Bug #1462152: file() now checks more thoroughly for invalid mode
|
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strings and removes a possible "U" before passing the mode to the
|
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C library function.
|
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|
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- Patch #1488312, Fix memory alignment problem on SPARC in unicode
|
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|
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- Bug #1487966: Fix SystemError with conditional expression in assignment
|
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|
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- WindowsError now has two error code attributes: errno, which carries
|
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the error values from errno.h, and winerror, which carries the error
|
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values from winerror.h. Previous versions put the winerror.h values
|
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(from GetLastError()) into the errno attribute.
|
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|
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- Patch #1475845: Raise IndentationError for unexpected indent.
|
||
|
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- Patch #1479181: split open() and file() from being aliases for each other.
|
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|
||
- Patch #1497053 & bug #1275608: Exceptions occurring in ``__eq__()``
|
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methods were always silently ignored by dictionaries when comparing keys.
|
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They are now passed through (except when using the C API function
|
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``PyDict_GetItem()``, whose semantics did not change).
|
||
|
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- Bug #1456209: In some obscure cases it was possible for a class with a
|
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custom ``__eq__()`` method to confuse dict internals when class instances
|
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were used as a dict's keys and the ``__eq__()`` method mutated the dict.
|
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No, you don't have any code that did this ;-)
|
||
|
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Extension Modules
|
||
-----------------
|
||
|
||
- Bug #1295808: expat symbols should be namespaced in pyexpat
|
||
|
||
- Patch #1462338: Upgrade pyexpat to expat 2.0.0
|
||
|
||
- Change binascii.hexlify to accept a read-only buffer instead of only a char
|
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buffer and actually follow its documentation.
|
||
|
||
- Fixed a potentially invalid memory access of CJKCodecs' shift-jis decoder.
|
||
|
||
- Patch #1478788 (modified version): The functional extension module has
|
||
been renamed to _functools and a functools Python wrapper module added.
|
||
This provides a home for additional function related utilities that are
|
||
not specifically about functional programming. See PEP 309.
|
||
|
||
- Patch #1493701: performance enhancements for struct module.
|
||
|
||
- Patch #1490224: time.altzone is now set correctly on Cygwin.
|
||
|
||
- Patch #1435422: zlib's compress and decompress objects now have a
|
||
copy() method.
|
||
|
||
- Patch #1454481: thread stack size is now tunable at runtime for thread
|
||
enabled builds on Windows and systems with Posix threads support.
|
||
|
||
- On Win32, os.listdir now supports arbitrarily-long Unicode path names
|
||
(up to the system limit of 32K characters).
|
||
|
||
- Use Win32 API to implement os.{access,chdir,chmod,mkdir,remove,rename,rmdir,utime}.
|
||
As a result, these functions now raise WindowsError instead of OSError.
|
||
|
||
- ``time.clock()`` on Win64 should use the high-performance Windows
|
||
``QueryPerformanceCounter()`` now (as was already the case on 32-bit
|
||
Windows platforms).
|
||
|
||
- Calling Tk_Init twice is refused if the first call failed as that
|
||
may deadlock.
|
||
|
||
- bsddb: added the DB_ARCH_REMOVE flag and fixed db.DBEnv.log_archive() to
|
||
accept it without potentially using an uninitialized pointer.
|
||
|
||
- bsddb: added support for the DBEnv.log_stat() and DBEnv.lsn_reset() methods
|
||
assuming BerkeleyDB >= 4.0 and 4.4 respectively. [pybsddb project SF
|
||
patch numbers 1494885 and 1494902]
|
||
|
||
- bsddb: added an interface for the BerkeleyDB >= 4.3 DBSequence class.
|
||
[pybsddb project SF patch number 1466734]
|
||
|
||
- bsddb: fix DBCursor.pget() bug with keyword argument names when no data
|
||
parameter is supplied. [SF pybsddb bug #1477863]
|
||
|
||
- bsddb: the __len__ method of a DB object has been fixed to return correct
|
||
results. It could previously incorrectly return 0 in some cases.
|
||
Fixes SF bug 1493322 (pybsddb bug 1184012).
|
||
|
||
- bsddb: the bsddb.dbtables Modify method now raises the proper error and
|
||
aborts the db transaction safely when a modifier callback fails.
|
||
Fixes SF python patch/bug #1408584.
|
||
|
||
- bsddb: multithreaded DB access using the simple bsddb module interface
|
||
now works reliably. It has been updated to use automatic BerkeleyDB
|
||
deadlock detection and the bsddb.dbutils.DeadlockWrap wrapper to retry
|
||
database calls that would previously deadlock. [SF python bug #775414]
|
||
|
||
- Patch #1446489: add support for the ZIP64 extensions to zipfile.
|
||
|
||
- Patch #1506645: add Python wrappers for the curses functions
|
||
is_term_resized, resize_term and resizeterm.
|
||
|
||
Library
|
||
-------
|
||
|
||
- Patch #815924: Restore ability to pass type= and icon= in tkMessageBox
|
||
functions.
|
||
|
||
- Patch #812986: Update turtle output even if not tracing.
|
||
|
||
- Patch #1494750: Destroy master after deleting children in
|
||
Tkinter.BaseWidget.
|
||
|
||
- Patch #1096231: Add ``default`` argument to Tkinter.Wm.wm_iconbitmap.
|
||
|
||
- Patch #763580: Add name and value arguments to Tkinter variable
|
||
classes.
|
||
|
||
- Bug #1117556: SimpleHTTPServer now tries to find and use the system's
|
||
mime.types file for determining MIME types.
|
||
|
||
- Bug #1339007: Shelf objects now don't raise an exception in their
|
||
__del__ method when initialization failed.
|
||
|
||
- Patch #1455898: The MBCS codec now supports the incremental mode for
|
||
double-byte encodings.
|
||
|
||
- ``difflib``'s ``SequenceMatcher.get_matching_blocks()`` was changed to
|
||
guarantee that adjacent triples in the return list always describe
|
||
non-adjacent blocks. Previously, a pair of matching blocks could end
|
||
up being described by multiple adjacent triples that formed a partition
|
||
of the matching pair.
|
||
|
||
- Bug #1498146: fix optparse to handle Unicode strings in option help,
|
||
description, and epilog.
|
||
|
||
- Bug #1366250: minor optparse documentation error.
|
||
|
||
- Bug #1361643: fix textwrap.dedent() so it handles tabs appropriately;
|
||
clarify docs.
|
||
|
||
- The wsgiref package has been added to the standard library.
|
||
|
||
- The functions update_wrapper() and wraps() have been added to the functools
|
||
module. These make it easier to copy relevant metadata from the original
|
||
function when writing wrapper functions.
|
||
|
||
- The optional ``isprivate`` argument to ``doctest.testmod()``, and the
|
||
``doctest.is_private()`` function, both deprecated in 2.4, were removed.
|
||
|
||
- Patch #1359618: Speed up charmap encoder by using a trie structure
|
||
for lookup.
|
||
|
||
- The functions in the ``pprint`` module now sort dictionaries by key
|
||
before computing the display. Before 2.5, ``pprint`` sorted a dictionary
|
||
if and only if its display required more than one line, although that
|
||
wasn't documented. The new behavior increases predictability; e.g.,
|
||
using ``pprint.pprint(a_dict)`` in a doctest is now reliable.
|
||
|
||
- Patch #1497027: try HTTP digest auth before basic auth in urllib2
|
||
(thanks for J. J. Lee).
|
||
|
||
- Patch #1496206: improve urllib2 handling of passwords with respect to
|
||
default HTTP and HTTPS ports.
|
||
|
||
- Patch #1080727: add "encoding" parameter to doctest.DocFileSuite.
|
||
|
||
- Patch #1281707: speed up gzip.readline.
|
||
|
||
- Patch #1180296: Two new functions were added to the locale module:
|
||
format_string() to get the effect of "format % items" but locale-aware,
|
||
and currency() to format a monetary number with currency sign.
|
||
|
||
- Patch #1486962: Several bugs in the turtle Tk demo module were fixed
|
||
and several features added, such as speed and geometry control.
|
||
|
||
- Patch #1488881: add support for external file objects in bz2 compressed
|
||
tarfiles.
|
||
|
||
- Patch #721464: pdb.Pdb instances can now be given explicit stdin and
|
||
stdout arguments, making it possible to redirect input and output
|
||
for remote debugging.
|
||
|
||
- Patch #1484695: Update the tarfile module to version 0.8. This fixes
|
||
a couple of issues, notably handling of long file names using the
|
||
GNU LONGNAME extension.
|
||
|
||
- Patch #1478292. ``doctest.register_optionflag(name)`` shouldn't create a
|
||
new flag when ``name`` is already the name of an option flag.
|
||
|
||
- Bug #1385040: don't allow "def foo(a=1, b): pass" in the compiler
|
||
package.
|
||
|
||
- Patch #1472854: make the rlcompleter.Completer class usable on non-
|
||
UNIX platforms.
|
||
|
||
- Patch #1470846: fix urllib2 ProxyBasicAuthHandler.
|
||
|
||
- Bug #1472827: correctly escape newlines and tabs in attribute values in
|
||
the saxutils.XMLGenerator class.
|
||
|
||
|
||
Build
|
||
-----
|
||
|
||
- Bug #1502728: Correctly link against librt library on HP-UX.
|
||
|
||
- OpenBSD 3.9 is supported now.
|
||
|
||
- Patch #1492356: Port to Windows CE.
|
||
|
||
- Bug/Patch #1481770: Use .so extension for shared libraries on HP-UX for ia64.
|
||
|
||
- Patch #1471883: Add --enable-universalsdk.
|
||
|
||
C API
|
||
-----
|
||
|
||
Tests
|
||
-----
|
||
|
||
Tools
|
||
-----
|
||
|
||
Documentation
|
||
-------------
|
||
|
||
|
||
|
||
What's New in Python 2.5 alpha 2?
|
||
=================================
|
||
|
||
*Release date: 27-APR-2006*
|
||
|
||
Core and builtins
|
||
-----------------
|
||
|
||
- Bug #1465834: 'bdist_wininst preinstall script support' was fixed
|
||
by converting these apis from macros into exported functions again:
|
||
|
||
PyParser_SimpleParseFile PyParser_SimpleParseString PyRun_AnyFile
|
||
PyRun_AnyFileEx PyRun_AnyFileFlags PyRun_File PyRun_FileEx
|
||
PyRun_FileFlags PyRun_InteractiveLoop PyRun_InteractiveOne
|
||
PyRun_SimpleFile PyRun_SimpleFileEx PyRun_SimpleString
|
||
PyRun_String Py_CompileString
|
||
|
||
- Under COUNT_ALLOCS, types are not necessarily immortal anymore.
|
||
|
||
- All uses of PyStructSequence_InitType have been changed to initialize
|
||
the type objects only once, even if the interpreter is initialized
|
||
multiple times.
|
||
|
||
- Bug #1454485, array.array('u') could crash the interpreter. This was
|
||
due to PyArgs_ParseTuple(args, 'u#', ...) trying to convert buffers (strings)
|
||
to unicode when it didn't make sense. 'u#' now requires a unicode string.
|
||
|
||
- Py_UNICODE is unsigned. It was always documented as unsigned, but
|
||
due to a bug had a signed value in previous versions.
|
||
|
||
- Patch #837242: ``id()`` of any Python object always gives a positive
|
||
number now, which might be a long integer. ``PyLong_FromVoidPtr`` and
|
||
``PyLong_AsVoidPtr`` have been changed accordingly. Note that it has
|
||
never been correct to implement a ``__hash()__`` method that returns the
|
||
``id()`` of an object:
|
||
|
||
def __hash__(self):
|
||
return id(self) # WRONG
|
||
|
||
because a hash result must be a (short) Python int but it was always
|
||
possible for ``id()`` to return a Python long. However, because ``id()``
|
||
could return negative values before, on a 32-bit box an ``id()`` result
|
||
was always usable as a hash value before this patch. That's no longer
|
||
necessarily so.
|
||
|
||
- Python on OS X 10.3 and above now uses dlopen() (via dynload_shlib.c)
|
||
to load extension modules and now provides the dl module. As a result,
|
||
sys.setdlopenflags() now works correctly on these systems. (SF patch
|
||
#1454844)
|
||
|
||
- Patch #1463867: enhanced garbage collection to allow cleanup of cycles
|
||
involving generators that have paused outside of any ``try`` or ``with``
|
||
blocks. (In 2.5a1, a paused generator that was part of a reference
|
||
cycle could not be garbage collected, regardless of whether it was
|
||
paused in a ``try`` or ``with`` block.)
|
||
|
||
Extension Modules
|
||
-----------------
|
||
|
||
- Patch #1191065: Fix preprocessor problems on systems where recvfrom
|
||
is a macro.
|
||
|
||
- Bug #1467952: os.listdir() now correctly raises an error if readdir()
|
||
fails with an error condition.
|
||
|
||
- Fixed bsddb.db.DBError derived exceptions so they can be unpickled.
|
||
|
||
- Bug #1117761: bsddb.*open() no longer raises an exception when using
|
||
the cachesize parameter.
|
||
|
||
- Bug #1149413: bsddb.*open() no longer raises an exception when using
|
||
a temporary db (file=None) with the 'n' flag to truncate on open.
|
||
|
||
- Bug #1332852: bsddb module minimum BerkeleyDB version raised to 3.3
|
||
as older versions cause excessive test failures.
|
||
|
||
- Patch #1062014: AF_UNIX sockets under Linux have a special
|
||
abstract namespace that is now fully supported.
|
||
|
||
Library
|
||
-------
|
||
|
||
- Bug #1223937: subprocess.CalledProcessError reports the exit status
|
||
of the process using the returncode attribute, instead of
|
||
abusing errno.
|
||
|
||
- Patch #1475231: ``doctest`` has a new ``SKIP`` option, which causes
|
||
a doctest to be skipped (the code is not run, and the expected output
|
||
or exception is ignored).
|
||
|
||
- Fixed contextlib.nested to cope with exceptions being raised and
|
||
caught inside exit handlers.
|
||
|
||
- Updated optparse module to Optik 1.5.1 (allow numeric constants in
|
||
hex, octal, or binary; add ``append_const`` action; keep going if
|
||
gettext cannot be imported; added ``OptionParser.destroy()`` method;
|
||
added ``epilog`` for better help generation).
|
||
|
||
- Bug #1473760: ``tempfile.TemporaryFile()`` could hang on Windows, when
|
||
called from a thread spawned as a side effect of importing a module.
|
||
|
||
- The pydoc module now supports documenting packages contained in
|
||
.zip or .egg files.
|
||
|
||
- The pkgutil module now has several new utility functions, such
|
||
as ``walk_packages()`` to support working with packages that are either
|
||
in the filesystem or zip files.
|
||
|
||
- The mailbox module can now modify and delete messages from
|
||
mailboxes, in addition to simply reading them. Thanks to Gregory
|
||
K. Johnson for writing the code, and to the 2005 Google Summer of
|
||
Code for funding his work.
|
||
|
||
- The ``__del__`` method of class ``local`` in module ``_threading_local``
|
||
returned before accomplishing any of its intended cleanup.
|
||
|
||
- Patch #790710: Add breakpoint command lists in pdb.
|
||
|
||
- Patch #1063914: Add Tkinter.Misc.clipboard_get().
|
||
|
||
- Patch #1191700: Adjust column alignment in bdb breakpoint lists.
|
||
|
||
- SimpleXMLRPCServer relied on the fcntl module, which is unavailable on
|
||
Windows. Bug #1469163.
|
||
|
||
- The warnings, linecache, inspect, traceback, site, and doctest modules
|
||
were updated to work correctly with modules imported from zipfiles or
|
||
via other PEP 302 __loader__ objects.
|
||
|
||
- Patch #1467770: Reduce usage of subprocess._active to processes which
|
||
the application hasn't waited on.
|
||
|
||
- Patch #1462222: Fix Tix.Grid.
|
||
|
||
- Fix exception when doing glob.glob('anything*/')
|
||
|
||
- The pstats.Stats class accepts an optional stream keyword argument to
|
||
direct output to an alternate file-like object.
|
||
|
||
Build
|
||
-----
|
||
|
||
- The Makefile now has a reindent target, which runs reindent.py on
|
||
the library.
|
||
|
||
- Patch #1470875: Building Python with MS Free Compiler
|
||
|
||
- Patch #1161914: Add a python-config script.
|
||
|
||
- Patch #1324762:Remove ccpython.cc; replace --with-cxx with
|
||
--with-cxx-main. Link with C++ compiler only if --with-cxx-main was
|
||
specified. (Can be overridden by explicitly setting LINKCC.) Decouple
|
||
CXX from --with-cxx-main, see description in README.
|
||
|
||
- Patch #1429775: Link extension modules with the shared libpython.
|
||
|
||
- Fixed a libffi build problem on MIPS systems.
|
||
|
||
- ``PyString_FromFormat``, ``PyErr_Format``, and ``PyString_FromFormatV``
|
||
now accept formats "%u" for unsigned ints, "%lu" for unsigned longs,
|
||
and "%zu" for unsigned integers of type ``size_t``.
|
||
|
||
Tests
|
||
-----
|
||
|
||
- test_contextlib now checks contextlib.nested can cope with exceptions
|
||
being raised and caught inside exit handlers.
|
||
|
||
- test_cmd_line now checks operation of the -m and -c command switches
|
||
|
||
- The test_contextlib test in 2.5a1 wasn't actually run unless you ran
|
||
it separately and by hand. It also wasn't cleaning up its changes to
|
||
the current Decimal context.
|
||
|
||
- regrtest.py now has a -M option to run tests that test the new limits of
|
||
containers, on 64-bit architectures. Running these tests is only sensible
|
||
on 64-bit machines with more than two gigabytes of memory. The argument
|
||
passed is the maximum amount of memory for the tests to use.
|
||
|
||
Tools
|
||
-----
|
||
|
||
- Added the Python benchmark suite pybench to the Tools/ directory;
|
||
contributed by Marc-Andre Lemburg.
|
||
|
||
Documentation
|
||
-------------
|
||
|
||
- Patch #1473132: Improve docs for ``tp_clear`` and ``tp_traverse``.
|
||
|
||
- PEP 343: Added Context Types section to the library reference
|
||
and attempted to bring other PEP 343 related documentation into
|
||
line with the implementation and/or python-dev discussions.
|
||
|
||
- Bug #1337990: clarified that ``doctest`` does not support examples
|
||
requiring both expected output and an exception.
|
||
|
||
|
||
What's New in Python 2.5 alpha 1?
|
||
=================================
|
||
|
||
*Release date: 05-APR-2006*
|
||
|
||
Core and builtins
|
||
-----------------
|
||
|
||
- PEP 338: -m command line switch now delegates to runpy.run_module
|
||
allowing it to support modules in packages and zipfiles
|
||
|
||
- On Windows, .DLL is not an accepted file name extension for
|
||
extension modules anymore; extensions are only found if they
|
||
end in .PYD.
|
||
|
||
- Bug #1421664: sys.stderr.encoding is now set to the same value as
|
||
sys.stdout.encoding.
|
||
|
||
- __import__ accepts keyword arguments.
|
||
|
||
- Patch #1460496: round() now accepts keyword arguments.
|
||
|
||
- Fixed bug #1459029 - unicode reprs were double-escaped.
|
||
|
||
- Patch #1396919: The system scope threads are reenabled on FreeBSD
|
||
5.4 and later versions.
|
||
|
||
- Bug #1115379: Compiling a Unicode string with an encoding declaration
|
||
now gives a SyntaxError.
|
||
|
||
- Previously, Python code had no easy way to access the contents of a
|
||
cell object. Now, a ``cell_contents`` attribute has been added
|
||
(closes patch #1170323).
|
||
|
||
- Patch #1123430: Python's small-object allocator now returns an arena to
|
||
the system ``free()`` when all memory within an arena becomes unused
|
||
again. Prior to Python 2.5, arenas (256KB chunks of memory) were never
|
||
freed. Some applications will see a drop in virtual memory size now,
|
||
especially long-running applications that, from time to time, temporarily
|
||
use a large number of small objects. Note that when Python returns an
|
||
arena to the platform C's ``free()``, there's no guarantee that the
|
||
platform C library will in turn return that memory to the operating system.
|
||
The effect of the patch is to stop making that impossible, and in tests it
|
||
appears to be effective at least on Microsoft C and gcc-based systems.
|
||
Thanks to Evan Jones for hard work and patience.
|
||
|
||
- Patch #1434038: property() now uses the getter's docstring if there is
|
||
no "doc" argument given. This makes it possible to legitimately use
|
||
property() as a decorator to produce a read-only property.
|
||
|
||
- PEP 357, patch 1436368: add an __index__ method to int/long and a matching
|
||
nb_index slot to the PyNumberMethods struct. The slot is consulted instead
|
||
of requiring an int or long in slicing and a few other contexts, enabling
|
||
other objects (e.g. Numeric Python's integers) to be used as slice indices.
|
||
|
||
- Fixed various bugs reported by Coverity's Prevent tool.
|
||
|
||
- PEP 352, patch #1104669: Make exceptions new-style objects. Introduced the
|
||
new exception base class, BaseException, which has a new message attribute.
|
||
KeyboardInterrupt and SystemExit to directly inherit from BaseException now.
|
||
Raising a string exception now raises a DeprecationWarning.
|
||
|
||
- Patch #1438387, PEP 328: relative and absolute imports. Imports can now be
|
||
explicitly relative, using 'from .module import name' to mean 'from the same
|
||
package as this module is in. Imports without dots still default to the
|
||
old relative-then-absolute, unless 'from __future__ import
|
||
absolute_import' is used.
|
||
|
||
- Properly check if 'warnings' raises an exception (usually when a filter set
|
||
to "error" is triggered) when raising a warning for raising string
|
||
exceptions.
|
||
|
||
- CO_GENERATOR_ALLOWED is no longer defined. This behavior is the default.
|
||
The name was removed from Include/code.h.
|
||
|
||
- PEP 308: conditional expressions were added: (x if cond else y).
|
||
|
||
- Patch 1433928:
|
||
- The copy module now "copies" function objects (as atomic objects).
|
||
- dict.__getitem__ now looks for a __missing__ hook before raising
|
||
KeyError.
|
||
|
||
- PEP 343: with statement implemented. Needs ``from __future__ import
|
||
with_statement``. Use of 'with' as a variable will generate a warning.
|
||
Use of 'as' as a variable will also generate a warning (unless it's
|
||
part of an import statement).
|
||
The following objects have __context__ methods:
|
||
- The built-in file type.
|
||
- The thread.LockType type.
|
||
- The following types defined by the threading module:
|
||
Lock, RLock, Condition, Semaphore, BoundedSemaphore.
|
||
- The decimal.Context class.
|
||
|
||
- Fix the encodings package codec search function to only search
|
||
inside its own package. Fixes problem reported in patch #1433198.
|
||
|
||
Note: Codec packages should implement and register their own
|
||
codec search function. PEP 100 has the details.
|
||
|
||
- PEP 353: Using ``Py_ssize_t`` as the index type.
|
||
|
||
- ``PYMALLOC_DEBUG`` builds now add ``4*sizeof(size_t)`` bytes of debugging
|
||
info to each allocated block, since the ``Py_ssize_t`` changes (PEP 353)
|
||
now allow Python to make use of memory blocks exceeding 2**32 bytes for
|
||
some purposes on 64-bit boxes. A ``PYMALLOC_DEBUG`` build was limited
|
||
to 4-byte allocations before.
|
||
|
||
- Patch #1400181, fix unicode string formatting to not use the locale.
|
||
This is how string objects work. u'%f' could use , instead of .
|
||
for the decimal point. Now both strings and unicode always use periods.
|
||
|
||
- Bug #1244610, #1392915, fix build problem on OpenBSD 3.7 and 3.8.
|
||
configure would break checking curses.h.
|
||
|
||
- Bug #959576: The pwd module is now builtin. This allows Python to be
|
||
built on UNIX platforms without $HOME set.
|
||
|
||
- Bug #1072182, fix some potential problems if characters are signed.
|
||
|
||
- Bug #889500, fix line number on SyntaxWarning for global declarations.
|
||
|
||
- Bug #1378022, UTF-8 files with a leading BOM crashed the interpreter.
|
||
|
||
- Support for converting hex strings to floats no longer works.
|
||
This was not portable. float('0x3') now raises a ValueError.
|
||
|
||
- Patch #1382163: Expose Subversion revision number to Python. New C API
|
||
function Py_GetBuildNumber(). New attribute sys.subversion. Build number
|
||
is now displayed in interactive prompt banner.
|
||
|
||
- Implementation of PEP 341 - Unification of try/except and try/finally.
|
||
"except" clauses can now be written together with a "finally" clause in
|
||
one try statement instead of two nested ones. Patch #1355913.
|
||
|
||
- Bug #1379994: Builtin unicode_escape and raw_unicode_escape codec
|
||
now encodes backslash correctly.
|
||
|
||
- Patch #1350409: Work around signal handling bug in Visual Studio 2005.
|
||
|
||
- Bug #1281408: Py_BuildValue now works correctly even with unsigned longs
|
||
and long longs.
|
||
|
||
- SF Bug #1350188, "setdlopenflags" leads to crash upon "import"
|
||
It was possible for dlerror() to return a NULL pointer, so
|
||
it will now use a default error message in this case.
|
||
|
||
- Replaced most Unicode charmap codecs with new ones using the
|
||
new Unicode translate string feature in the builtin charmap
|
||
codec; the codecs were created from the mapping tables available
|
||
at ftp.unicode.org and contain a few updates (e.g. the Mac OS
|
||
encodings now include a mapping for the Apple logo)
|
||
|
||
- Added a few more codecs for Mac OS encodings
|
||
|
||
- Sped up some Unicode operations.
|
||
|
||
- A new AST parser implementation was completed. The abstract
|
||
syntax tree is available for read-only (non-compile) access
|
||
to Python code; an _ast module was added.
|
||
|
||
- SF bug #1167751: fix incorrect code being produced for generator expressions.
|
||
The following code now raises a SyntaxError: foo(a = i for i in range(10))
|
||
|
||
- SF Bug #976608: fix SystemError when mtime of an imported file is -1.
|
||
|
||
- SF Bug #887946: fix segfault when redirecting stdin from a directory.
|
||
Provide a warning when a directory is passed on the command line.
|
||
|
||
- Fix segfault with invalid coding.
|
||
|
||
- SF bug #772896: unknown encoding results in MemoryError.
|
||
|
||
- All iterators now have a Boolean value of True. Formerly, some iterators
|
||
supported a __len__() method which evaluated to False when the iterator
|
||
was empty.
|
||
|
||
- On 64-bit platforms, when __len__() returns a value that cannot be
|
||
represented as a C int, raise OverflowError.
|
||
|
||
- test__locale is skipped on OS X < 10.4 (only partial locale support is
|
||
present).
|
||
|
||
- SF bug #893549: parsing keyword arguments was broken with a few format
|
||
codes.
|
||
|
||
- Changes donated by Elemental Security to make it work on AIX 5.3
|
||
with IBM's 64-bit compiler (SF patch #1284289). This also closes SF
|
||
bug #105470: test_pwd fails on 64bit system (Opteron).
|
||
|
||
- Changes donated by Elemental Security to make it work on HP-UX 11 on
|
||
Itanium2 with HP's 64-bit compiler (SF patch #1225212).
|
||
|
||
- Disallow keyword arguments for type constructors that don't use them
|
||
(fixes bug #1119418).
|
||
|
||
- Forward UnicodeDecodeError into SyntaxError for source encoding errors.
|
||
|
||
- SF bug #900092: When tracing (e.g. for hotshot), restore 'return' events for
|
||
exceptions that cause a function to exit.
|
||
|
||
- The implementation of set() and frozenset() was revised to use its
|
||
own internal data structure. Memory consumption is reduced by 1/3
|
||
and there are modest speed-ups as well. The API is unchanged.
|
||
|
||
- SF bug #1238681: freed pointer is used in longobject.c:long_pow().
|
||
|
||
- SF bug #1229429: PyObject_CallMethod failed to decrement some
|
||
reference counts in some error exit cases.
|
||
|
||
- SF bug #1185883: Python's small-object memory allocator took over
|
||
a block managed by the platform C library whenever a realloc specified
|
||
a small new size. However, there's no portable way to know then how
|
||
much of the address space following the pointer is valid, so there's no
|
||
portable way to copy data from the C-managed block into Python's
|
||
small-object space without risking a memory fault. Python's small-object
|
||
realloc now leaves such blocks under the control of the platform C
|
||
realloc.
|
||
|
||
- SF bug #1232517: An overflow error was not detected properly when
|
||
attempting to convert a large float to an int in os.utime().
|
||
|
||
- SF bug #1224347: hex longs now print with lowercase letters just
|
||
like their int counterparts.
|
||
|
||
- SF bug #1163563: the original fix for bug #1010677 ("thread Module
|
||
Breaks PyGILState_Ensure()") broke badly in the case of multiple
|
||
interpreter states; back out that fix and do a better job (see
|
||
http://mail.python.org/pipermail/python-dev/2005-June/054258.html
|
||
for a longer write-up of the problem).
|
||
|
||
- SF patch #1180995: marshal now uses a binary format by default when
|
||
serializing floats.
|
||
|
||
- SF patch #1181301: on platforms that appear to use IEEE 754 floats,
|
||
the routines that promise to produce IEEE 754 binary representations
|
||
of floats now simply copy bytes around.
|
||
|
||
- bug #967182: disallow opening files with 'wU' or 'aU' as specified by PEP
|
||
278.
|
||
|
||
- patch #1109424: int, long, float, complex, and unicode now check for the
|
||
proper magic slot for type conversions when subclassed. Previously the
|
||
magic slot was ignored during conversion. Semantics now match the way
|
||
subclasses of str always behaved. int/long/float, conversion of an instance
|
||
to the base class has been moved to the proper nb_* magic slot and out of
|
||
PyNumber_*().
|
||
Thanks Walter D<>rwald.
|
||
|
||
- Descriptors defined in C with a PyGetSetDef structure, where the setter is
|
||
NULL, now raise an AttributeError when attempting to set or delete the
|
||
attribute. Previously a TypeError was raised, but this was inconsistent
|
||
with the equivalent pure-Python implementation.
|
||
|
||
- It is now safe to call PyGILState_Release() before
|
||
PyEval_InitThreads() (note that if there is reason to believe there
|
||
are multiple threads around you still must call PyEval_InitThreads()
|
||
before using the Python API; this fix is for extension modules that
|
||
have no way of knowing if Python is multi-threaded yet).
|
||
|
||
- Typing Ctrl-C whilst raw_input() was waiting in a build with threads
|
||
disabled caused a crash.
|
||
|
||
- Bug #1165306: instancemethod_new allowed the creation of a method
|
||
with im_class == im_self == NULL, which caused a crash when called.
|
||
|
||
- Move exception finalisation later in the shutdown process - this
|
||
fixes the crash seen in bug #1165761
|
||
|
||
- Added two new builtins, any() and all().
|
||
|
||
- Defining a class with empty parentheses is now allowed
|
||
(e.g., ``class C(): pass`` is no longer a syntax error).
|
||
Patch #1176012 added support to the 'parser' module and 'compiler' package
|
||
(thanks to logistix for that added support).
|
||
|
||
- Patch #1115086: Support PY_LONGLONG in structmember.
|
||
|
||
- Bug #1155938: new style classes did not check that __init__() was
|
||
returning None.
|
||
|
||
- Patch #802188: Report characters after line continuation character
|
||
('\') with a specific error message.
|
||
|
||
- Bug #723201: Raise a TypeError for passing bad objects to 'L' format.
|
||
|
||
- Bug #1124295: the __name__ attribute of file objects was
|
||
inadvertently made inaccessible in restricted mode.
|
||
|
||
- Bug #1074011: closing sys.std{out,err} now causes a flush() and
|
||
an ferror() call.
|
||
|
||
- min() and max() now support key= arguments with the same meaning as in
|
||
list.sort().
|
||
|
||
- The peephole optimizer now performs simple constant folding in expressions:
|
||
(2+3) --> (5).
|
||
|
||
- set and frozenset objects can now be marshalled. SF #1098985.
|
||
|
||
- Bug #1077106: Poor argument checking could cause memory corruption
|
||
in calls to os.read().
|
||
|
||
- The parser did not complain about future statements in illegal
|
||
positions. It once again reports a syntax error if a future
|
||
statement occurs after anything other than a doc string.
|
||
|
||
- Change the %s format specifier for str objects so that it returns a
|
||
unicode instance if the argument is not an instance of basestring and
|
||
calling __str__ on the argument returns a unicode instance.
|
||
|
||
- Patch #1413181: changed ``PyThreadState_Delete()`` to forget about the
|
||
current thread state when the auto-GIL-state machinery knows about
|
||
it (since the thread state is being deleted, continuing to remember it
|
||
can't help, but can hurt if another thread happens to get created with
|
||
the same thread id).
|
||
|
||
Extension Modules
|
||
-----------------
|
||
|
||
- Patch #1380952: fix SSL objects timing out on consecutive read()s
|
||
|
||
- Patch #1309579: wait3 and wait4 were added to the posix module.
|
||
|
||
- Patch #1231053: The audioop module now supports encoding/decoding of alaw.
|
||
In addition, the existing ulaw code was updated.
|
||
|
||
- RFE #567972: Socket objects' family, type and proto properties are
|
||
now exposed via new attributes.
|
||
|
||
- Everything under lib-old was removed. This includes the following modules:
|
||
Para, addpack, cmp, cmpcache, codehack, dircmp, dump, find, fmt, grep,
|
||
lockfile, newdir, ni, packmail, poly, rand, statcache, tb, tzparse,
|
||
util, whatsound, whrandom, zmod
|
||
|
||
- The following modules were removed: regsub, reconvert, regex, regex_syntax.
|
||
|
||
- re and sre were swapped, so help(re) provides full help. importing sre
|
||
is deprecated. The undocumented re.engine variable no longer exists.
|
||
|
||
- Bug #1448490: Fixed a bug that ISO-2022 codecs could not handle
|
||
SS2 (single-shift 2) escape sequences correctly.
|
||
|
||
- The unicodedata module was updated to the 4.1 version of the Unicode
|
||
database. The 3.2 version is still available as unicodedata.db_3_2_0
|
||
for applications that require this specific version (such as IDNA).
|
||
|
||
- The timing module is no longer built by default. It was deprecated
|
||
in PEP 4 in Python 2.0 or earlier.
|
||
|
||
- Patch 1433928: Added a new type, defaultdict, to the collections module.
|
||
This uses the new __missing__ hook behavior added to dict (see above).
|
||
|
||
- Bug #854823: socketmodule now builds on Sun platforms even when
|
||
INET_ADDRSTRLEN is not defined.
|
||
|
||
- Patch #1393157: os.startfile() now has an optional argument to specify
|
||
a "command verb" to invoke on the file.
|
||
|
||
- Bug #876637, prevent stack corruption when socket descriptor
|
||
is larger than FD_SETSIZE.
|
||
|
||
- Patch #1407135, bug #1424041: harmonize mmap behavior of anonymous memory.
|
||
mmap.mmap(-1, size) now returns anonymous memory in both Unix and Windows.
|
||
mmap.mmap(0, size) should not be used on Windows for anonymous memory.
|
||
|
||
- Patch #1422385: The nis module now supports access to domains other
|
||
than the system default domain.
|
||
|
||
- Use Win32 API to implement os.stat/fstat. As a result, subsecond timestamps
|
||
are reported, the limit on path name lengths is removed, and stat reports
|
||
WindowsError now (instead of OSError).
|
||
|
||
- Add bsddb.db.DBEnv.set_tx_timestamp allowing time based database recovery.
|
||
|
||
- Bug #1413192, fix seg fault in bsddb if a transaction was deleted
|
||
before the env.
|
||
|
||
- Patch #1103116: Basic AF_NETLINK support.
|
||
|
||
- Bug #1402308, (possible) segfault when using mmap.mmap(-1, ...)
|
||
|
||
- Bug #1400822, _curses over{lay,write} doesn't work when passing 6 ints.
|
||
Also fix ungetmouse() which did not accept arguments properly.
|
||
The code now conforms to the documented signature.
|
||
|
||
- Bug #1400115, Fix segfault when calling curses.panel.userptr()
|
||
without prior setting of the userptr.
|
||
|
||
- Fix 64-bit problems in bsddb.
|
||
|
||
- Patch #1365916: fix some unsafe 64-bit mmap methods.
|
||
|
||
- Bug #1290333: Added a workaround for cjkcodecs' _codecs_cn build
|
||
problem on AIX.
|
||
|
||
- Bug #869197: os.setgroups rejects long integer arguments
|
||
|
||
- Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint
|
||
|
||
- Bug #1344508, Fix UNIX mmap leaking file descriptors
|
||
|
||
- Patch #1338314, Bug #1336623: fix tarfile so it can extract
|
||
REGTYPE directories from tarfiles written by old programs.
|
||
|
||
- Patch #1407992, fixes broken bsddb module db associate when using
|
||
BerkeleyDB 3.3, 4.0 or 4.1.
|
||
|
||
- Get bsddb module to build with BerkeleyDB version 4.4
|
||
|
||
- Get bsddb module to build with BerkeleyDB version 3.2
|
||
|
||
- Patch #1309009, Fix segfault in pyexpat when the XML document is in latin_1,
|
||
but Python incorrectly assumes it is in UTF-8 format
|
||
|
||
- Fix parse errors in the readline module when compiling without threads.
|
||
|
||
- Patch #1288833: Removed thread lock from socket.getaddrinfo on
|
||
FreeBSD 5.3 and later versions which got thread-safe getaddrinfo(3).
|
||
|
||
- Patches #1298449 and #1298499: Add some missing checks for error
|
||
returns in cStringIO.c.
|
||
|
||
- Patch #1297028: fix segfault if call type on MultibyteCodec,
|
||
MultibyteStreamReader, or MultibyteStreamWriter
|
||
|
||
- Fix memory leak in posix.access().
|
||
|
||
- Patch #1213831: Fix typo in unicodedata._getcode.
|
||
|
||
- Bug #1007046: os.startfile() did not accept unicode strings encoded in
|
||
the file system encoding.
|
||
|
||
- Patch #756021: Special-case socket.inet_aton('255.255.255.255') for
|
||
platforms that don't have inet_aton().
|
||
|
||
- Bug #1215928: Fix bz2.BZ2File.seek() for 64-bit file offsets.
|
||
|
||
- Bug #1191043: Fix bz2.BZ2File.(x)readlines for files containing one
|
||
line without newlines.
|
||
|
||
- Bug #728515: mmap.resize() now resizes the file on Unix as it did
|
||
on Windows.
|
||
|
||
- Patch #1180695: Add nanosecond stat resolution, and st_gen,
|
||
st_birthtime for FreeBSD.
|
||
|
||
- Patch #1231069: The fcntl.ioctl function now uses the 'I' code for
|
||
the request code argument, which results in more C-like behaviour
|
||
for large or negative values.
|
||
|
||
- Bug #1234979: For the argument of thread.Lock.acquire, the Windows
|
||
implementation treated all integer values except 1 as false.
|
||
|
||
- Bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
|
||
|
||
- Patch #1212117: os.stat().st_flags is now accessible as a attribute
|
||
if available on the platform.
|
||
|
||
- Patch #1103951: Expose O_SHLOCK and O_EXLOCK in the posix module if
|
||
available on the platform.
|
||
|
||
- Bug #1166660: The readline module could segfault if hook functions
|
||
were set in a different thread than that which called readline.
|
||
|
||
- collections.deque objects now support a remove() method.
|
||
|
||
- operator.itemgetter() and operator.attrgetter() now support retrieving
|
||
multiple fields. This provides direct support for sorting on multiple
|
||
keys (primary, secondary, etc).
|
||
|
||
- os.access now supports Unicode path names on non-Win32 systems.
|
||
|
||
- Patches #925152, #1118602: Avoid reading after the end of the buffer
|
||
in pyexpat.GetInputContext.
|
||
|
||
- Patches #749830, #1144555: allow UNIX mmap size to default to current
|
||
file size.
|
||
|
||
- Added functional.partial(). See PEP309.
|
||
|
||
- Patch #1093585: raise a ValueError for negative history items in readline.
|
||
{remove_history,replace_history}
|
||
|
||
- The spwd module has been added, allowing access to the shadow password
|
||
database.
|
||
|
||
- stat_float_times is now True.
|
||
|
||
- array.array objects are now picklable.
|
||
|
||
- the cPickle module no longer accepts the deprecated None option in the
|
||
args tuple returned by __reduce__().
|
||
|
||
- itertools.islice() now accepts None for the start and step arguments.
|
||
This allows islice() to work more readily with slices:
|
||
islice(s.start, s.stop, s.step)
|
||
|
||
- datetime.datetime() now has a strptime class method which can be used to
|
||
create datetime object using a string and format.
|
||
|
||
- Patch #1117961: Replace the MD5 implementation from RSA Data Security Inc
|
||
with the implementation from http://sourceforge.net/projects/libmd5-rfc/.
|
||
|
||
Library
|
||
-------
|
||
|
||
- Patch #1388073: Numerous __-prefixed attributes of unittest.TestCase have
|
||
been renamed to have only a single underscore prefix. This was done to
|
||
make subclassing easier.
|
||
|
||
- PEP 338: new module runpy defines a run_module function to support
|
||
executing modules which provide access to source code or a code object
|
||
via the PEP 302 import mechanisms.
|
||
|
||
- The email module's parsedate_tz function now sets the daylight savings
|
||
flag to -1 (unknown) since it can't tell from the date whether it should
|
||
be set.
|
||
|
||
- Patch #624325: urlparse.urlparse() and urlparse.urlsplit() results
|
||
now sport attributes that provide access to the parts of the result.
|
||
|
||
- Patch #1462498: sgmllib now handles entity and character references
|
||
in attribute values.
|
||
|
||
- Added the sqlite3 package. This is based on pysqlite2.1.3, and provides
|
||
a DB-API interface in the standard library. You'll need sqlite 3.0.8 or
|
||
later to build this - if you have an earlier version, the C extension
|
||
module will not be built.
|
||
|
||
- Bug #1460340: ``random.sample(dict)`` failed in various ways. Dicts
|
||
aren't officially supported here, and trying to use them will probably
|
||
raise an exception some day. But dicts have been allowed, and "mostly
|
||
worked", so support for them won't go away without warning.
|
||
|
||
- Bug #1445068: getpass.getpass() can now be given an explicit stream
|
||
argument to specify where to write the prompt.
|
||
|
||
- Patch #1462313, bug #1443328: the pickle modules now can handle classes
|
||
that have __private names in their __slots__.
|
||
|
||
- Bug #1250170: mimetools now handles socket.gethostname() failures gracefully.
|
||
|
||
- patch #1457316: "setup.py upload" now supports --identity to select the
|
||
key to be used for signing the uploaded code.
|
||
|
||
- Queue.Queue objects now support .task_done() and .join() methods
|
||
to make it easier to monitor when daemon threads have completed
|
||
processing all enqueued tasks. Patch #1455676.
|
||
|
||
- popen2.Popen objects now preserve the command in a .cmd attribute.
|
||
|
||
- Added the ctypes ffi package.
|
||
|
||
- email 4.0 package now integrated. This is largely the same as the email 3.0
|
||
package that was included in Python 2.3, except that PEP 8 module names are
|
||
now used (e.g. mail.message instead of email.Message). The MIME classes
|
||
have been moved to a subpackage (e.g. email.mime.text instead of
|
||
email.MIMEText). The old names are still supported for now. Several
|
||
deprecated Message methods have been removed and lots of bugs have been
|
||
fixed. More details can be found in the email package documentation.
|
||
|
||
- Patches #1436130/#1443155: codecs.lookup() now returns a CodecInfo object
|
||
(a subclass of tuple) that provides incremental decoders and encoders
|
||
(a way to use stateful codecs without the stream API). Python functions
|
||
codecs.getincrementaldecoder() and codecs.getincrementalencoder() as well
|
||
as C functions PyCodec_IncrementalEncoder() and PyCodec_IncrementalDecoder()
|
||
have been added.
|
||
|
||
- Patch #1359365: Calling next() on a closed StringIO.String object raises
|
||
a ValueError instead of a StopIteration now (like file and cString.String do).
|
||
cStringIO.StringIO.isatty() will raise a ValueError now if close() has been
|
||
called before (like file and StringIO.StringIO do).
|
||
|
||
- A regrtest option -w was added to re-run failed tests in verbose mode.
|
||
|
||
- Patch #1446372: quit and exit can now be called from the interactive
|
||
interpreter to exit.
|
||
|
||
- The function get_count() has been added to the gc module, and gc.collect()
|
||
grew an optional 'generation' argument.
|
||
|
||
- A library msilib to generate Windows Installer files, and a distutils
|
||
command bdist_msi have been added.
|
||
|
||
- PEP 343: new module contextlib.py defines decorator @contextmanager
|
||
and helpful context managers nested() and closing().
|
||
|
||
- The compiler package now supports future imports after the module docstring.
|
||
|
||
- Bug #1413790: zipfile now sanitizes absolute archive names that are
|
||
not allowed by the specs.
|
||
|
||
- Patch #1215184: FileInput now can be given an opening hook which can
|
||
be used to control how files are opened.
|
||
|
||
- Patch #1212287: fileinput.input() now has a mode parameter for
|
||
specifying the file mode input files should be opened with.
|
||
|
||
- Patch #1215184: fileinput now has a fileno() function for getting the
|
||
current file number.
|
||
|
||
- Patch #1349274: gettext.install() now optionally installs additional
|
||
translation functions other than _() in the builtin namespace.
|
||
|
||
- Patch #1337756: fileinput now accepts Unicode filenames.
|
||
|
||
- Patch #1373643: The chunk module can now read chunks larger than
|
||
two gigabytes.
|
||
|
||
- Patch #1417555: SimpleHTTPServer now returns Last-Modified headers.
|
||
|
||
- Bug #1430298: It is now possible to send a mail with an empty
|
||
return address using smtplib.
|
||
|
||
- Bug #1432260: The names of lambda functions are now properly displayed
|
||
in pydoc.
|
||
|
||
- Patch #1412872: zipfile now sets the creator system to 3 (Unix)
|
||
unless the system is Win32.
|
||
|
||
- Patch #1349118: urllib now supports user:pass@ style proxy
|
||
specifications, raises IOErrors when proxies for unsupported protocols
|
||
are defined, and uses the https proxy on https redirections.
|
||
|
||
- Bug #902075: urllib2 now supports 'host:port' style proxy specifications.
|
||
|
||
- Bug #1407902: Add support for sftp:// URIs to urlparse.
|
||
|
||
- Bug #1371247: Update Windows locale identifiers in locale.py.
|
||
|
||
- Bug #1394565: SimpleHTTPServer now doesn't choke on query parameters
|
||
any more.
|
||
|
||
- Bug #1403410: The warnings module now doesn't get confused
|
||
when it can't find out the module name it generates a warning for.
|
||
|
||
- Patch #1177307: Added a new codec utf_8_sig for UTF-8 with a BOM signature.
|
||
|
||
- Patch #1157027: cookielib mishandles RFC 2109 cookies in Netscape mode
|
||
|
||
- Patch #1117398: cookielib.LWPCookieJar and .MozillaCookieJar now raise
|
||
LoadError as documented, instead of IOError. For compatibility,
|
||
LoadError subclasses IOError.
|
||
|
||
- Added the hashlib module. It provides secure hash functions for MD5 and
|
||
SHA1, 224, 256, 384, and 512. Note that recent developments make the
|
||
historic MD5 and SHA1 unsuitable for cryptographic-strength applications.
|
||
In <http://mail.python.org/pipermail/python-dev/2005-December/058850.html>
|
||
Ronald L. Rivest offered this advice for Python:
|
||
|
||
"The consensus of researchers in this area (at least as
|
||
expressed at the NIST Hash Function Workshop 10/31/05),
|
||
is that SHA-256 is a good choice for the time being, but
|
||
that research should continue, and other alternatives may
|
||
arise from this research. The larger SHA's also seem OK."
|
||
|
||
- Added a subset of Fredrik Lundh's ElementTree package. Available
|
||
modules are xml.etree.ElementTree, xml.etree.ElementPath, and
|
||
xml.etree.ElementInclude, from ElementTree 1.2.6.
|
||
|
||
- Patch #1162825: Support non-ASCII characters in IDLE window titles.
|
||
|
||
- Bug #1365984: urllib now opens "data:" URLs again.
|
||
|
||
- Patch #1314396: prevent deadlock for threading.Thread.join() when an exception
|
||
is raised within the method itself on a previous call (e.g., passing in an
|
||
illegal argument)
|
||
|
||
- Bug #1340337: change time.strptime() to always return ValueError when there
|
||
is an error in the format string.
|
||
|
||
- Patch #754022: Greatly enhanced webbrowser.py (by Oleg Broytmann).
|
||
|
||
- Bug #729103: pydoc.py: Fix docother() method to accept additional
|
||
"parent" argument.
|
||
|
||
- Patch #1300515: xdrlib.py: Fix pack_fstring() to really use null bytes
|
||
for padding.
|
||
|
||
- Bug #1296004: httplib.py: Limit maximal amount of data read from the
|
||
socket to avoid a MemoryError on Windows.
|
||
|
||
- Patch #1166948: locale.py: Prefer LC_ALL, LC_CTYPE and LANG over LANGUAGE
|
||
to get the correct encoding.
|
||
|
||
- Patch #1166938: locale.py: Parse LANGUAGE as a colon separated list of
|
||
languages.
|
||
|
||
- Patch #1268314: Cache lines in StreamReader.readlines for performance.
|
||
|
||
- Bug #1290505: Fix clearing the regex cache for time.strptime().
|
||
|
||
- Bug #1167128: Fix size of a symlink in a tarfile to be 0.
|
||
|
||
- Patch #810023: Fix off-by-one bug in urllib.urlretrieve reporthook
|
||
functionality.
|
||
|
||
- Bug #1163178: Make IDNA return an empty string when the input is empty.
|
||
|
||
- Patch #848017: Make Cookie more RFC-compliant. Use CRLF as default output
|
||
separator and do not output trailing semicolon.
|
||
|
||
- Patch #1062060: urllib.urlretrieve() now raises a new exception, named
|
||
ContentTooShortException, when the actually downloaded size does not
|
||
match the Content-Length header.
|
||
|
||
- Bug #1121494: distutils.dir_utils.mkpath now accepts Unicode strings.
|
||
|
||
- Bug #1178484: Return complete lines from codec stream readers
|
||
even if there is an exception in later lines, resulting in
|
||
correct line numbers for decoding errors in source code.
|
||
|
||
- Bug #1192315: Disallow negative arguments to clear() in pdb.
|
||
|
||
- Patch #827386: Support absolute source paths in msvccompiler.py.
|
||
|
||
- Patch #1105730: Apply the new implementation of commonprefix in posixpath
|
||
to ntpath, macpath, os2emxpath and riscospath.
|
||
|
||
- Fix a problem in Tkinter introduced by SF patch #869468: delete bogus
|
||
__hasattr__ and __delattr__ methods on class Tk that were breaking
|
||
Tkdnd.
|
||
|
||
- Bug #1015140: disambiguated the term "article id" in nntplib docs and
|
||
docstrings to either "article number" or "message id".
|
||
|
||
- Bug #1238170: threading.Thread.__init__ no longer has "kwargs={}" as a
|
||
parameter, but uses the usual "kwargs=None".
|
||
|
||
- textwrap now processes text chunks at O(n) speed instead of O(n**2).
|
||
Patch #1209527 (Contributed by Connelly).
|
||
|
||
- urllib2 has now an attribute 'httpresponses' mapping from HTTP status code
|
||
to W3C name (404 -> 'Not Found'). RFE #1216944.
|
||
|
||
- Bug #1177468: Don't cache the /dev/urandom file descriptor for os.urandom,
|
||
as this can cause problems with apps closing all file descriptors.
|
||
|
||
- Bug #839151: Fix an attempt to access sys.argv in the warnings module;
|
||
it can be missing in embedded interpreters
|
||
|
||
- Bug #1155638: Fix a bug which affected HTTP 0.9 responses in httplib.
|
||
|
||
- Bug #1100201: Cross-site scripting was possible on BaseHTTPServer via
|
||
error messages.
|
||
|
||
- Bug #1108948: Cookie.py produced invalid JavaScript code.
|
||
|
||
- The tokenize module now detects and reports indentation errors.
|
||
Bug #1224621.
|
||
|
||
- The tokenize module has a new untokenize() function to support a full
|
||
roundtrip from lexed tokens back to Python source code. In addition,
|
||
the generate_tokens() function now accepts a callable argument that
|
||
terminates by raising StopIteration.
|
||
|
||
- Bug #1196315: fix weakref.WeakValueDictionary constructor.
|
||
|
||
- Bug #1213894: os.path.realpath didn't resolve symlinks that were the first
|
||
component of the path.
|
||
|
||
- Patch #1120353: The xmlrpclib module provides better, more transparent,
|
||
support for datetime.{datetime,date,time} objects. With use_datetime set
|
||
to True, applications shouldn't have to fiddle with the DateTime wrapper
|
||
class at all.
|
||
|
||
- distutils.commands.upload was added to support uploading distribution
|
||
files to PyPI.
|
||
|
||
- distutils.commands.register now encodes the data as UTF-8 before posting
|
||
them to PyPI.
|
||
|
||
- decimal operator and comparison methods now return NotImplemented
|
||
instead of raising a TypeError when interacting with other types. This
|
||
allows other classes to implement __radd__ style methods and have them
|
||
work as expected.
|
||
|
||
- Bug #1163325: Decimal infinities failed to hash. Attempting to
|
||
hash a NaN raised an InvalidOperation instead of a TypeError.
|
||
|
||
- Patch #918101: Add tarfile open mode r|* for auto-detection of the
|
||
stream compression; add, for symmetry reasons, r:* as a synonym of r.
|
||
|
||
- Patch #1043890: Add extractall method to tarfile.
|
||
|
||
- Patch #1075887: Don't require MSVC in distutils if there is nothing
|
||
to build.
|
||
|
||
- Patch #1103407: Properly deal with tarfile iterators when untarring
|
||
symbolic links on Windows.
|
||
|
||
- Patch #645894: Use getrusage for computing the time consumption in
|
||
profile.py if available.
|
||
|
||
- Patch #1046831: Use get_python_version where appropriate in sysconfig.py.
|
||
|
||
- Patch #1117454: Remove code to special-case cookies without values
|
||
in LWPCookieJar.
|
||
|
||
- Patch #1117339: Add cookielib special name tests.
|
||
|
||
- Patch #1112812: Make bsddb/__init__.py more friendly for modulefinder.
|
||
|
||
- Patch #1110248: SYNC_FLUSH the zlib buffer for GZipFile.flush.
|
||
|
||
- Patch #1107973: Allow to iterate over the lines of a tarfile.ExFileObject.
|
||
|
||
- Patch #1104111: Alter setup.py --help and --help-commands.
|
||
|
||
- Patch #1121234: Properly cleanup _exit and tkerror commands.
|
||
|
||
- Patch #1049151: xdrlib now unpacks booleans as True or False.
|
||
|
||
- Fixed bug in a NameError bug in cookielib. Patch #1116583.
|
||
|
||
- Applied a security fix to SimpleXMLRPCserver (PSF-2005-001). This
|
||
disables recursive traversal through instance attributes, which can
|
||
be exploited in various ways.
|
||
|
||
- Bug #1222790: in SimpleXMLRPCServer, set the reuse-address and close-on-exec
|
||
flags on the HTTP listening socket.
|
||
|
||
- Bug #792570: SimpleXMLRPCServer had problems if the request grew too large.
|
||
Fixed by reading the HTTP body in chunks instead of one big socket.read().
|
||
|
||
- Patches #893642, #1039083: add allow_none, encoding arguments to
|
||
constructors of SimpleXMLRPCServer and CGIXMLRPCRequestHandler.
|
||
|
||
- Bug #1110478: Revert os.environ.update to do putenv again.
|
||
|
||
- Bug #1103844: fix distutils.install.dump_dirs() with negated options.
|
||
|
||
- os.{SEEK_SET, SEEK_CUR, SEEK_END} have been added for convenience.
|
||
|
||
- Enhancements to the csv module:
|
||
|
||
+ Dialects are now validated by the underlying C code, better
|
||
reflecting its capabilities, and improving its compliance with
|
||
PEP 305.
|
||
+ Dialect parameter parsing has been re-implemented to improve error
|
||
reporting.
|
||
+ quotechar=None and quoting=QUOTE_NONE now work the way PEP 305
|
||
dictates.
|
||
+ the parser now removes the escapechar prefix from escaped characters.
|
||
+ when quoting=QUOTE_NONNUMERIC, the writer now tests for numeric
|
||
types, rather than any object that can be represented as a numeric.
|
||
+ when quoting=QUOTE_NONNUMERIC, the reader now casts unquoted fields
|
||
to floats.
|
||
+ reader now allows \r characters to be quoted (previously it only allowed
|
||
\n to be quoted).
|
||
+ writer doublequote handling improved.
|
||
+ Dialect classes passed to the module are no longer instantiated by
|
||
the module before being parsed (the former validation scheme required
|
||
this, but the mechanism was unreliable).
|
||
+ The dialect registry now contains instances of the internal
|
||
C-coded dialect type, rather than references to python objects.
|
||
+ the internal c-coded dialect type is now immutable.
|
||
+ register_dialect now accepts the same keyword dialect specifications
|
||
as the reader and writer, allowing the user to register dialects
|
||
without first creating a dialect class.
|
||
+ a configurable limit to the size of parsed fields has been added -
|
||
previously, an unmatched quote character could result in the entire
|
||
file being read into the field buffer before an error was reported.
|
||
+ A new module method csv.field_size_limit() has been added that sets
|
||
the parser field size limit (returning the former limit). The initial
|
||
limit is 128kB.
|
||
+ A line_num attribute has been added to the reader object, which tracks
|
||
the number of lines read from the source iterator. This is not
|
||
the same as the number of records returned, as records can span
|
||
multiple lines.
|
||
+ reader and writer objects were not being registered with the cyclic-GC.
|
||
This has been fixed.
|
||
|
||
- _DummyThread objects in the threading module now delete self.__block that is
|
||
inherited from _Thread since it uses up a lock allocated by 'thread'. The
|
||
lock primitives tend to be limited in number and thus should not be wasted on
|
||
a _DummyThread object. Fixes bug #1089632.
|
||
|
||
- The imghdr module now detects Exif files.
|
||
|
||
- StringIO.truncate() now correctly adjusts the size attribute.
|
||
(Bug #951915).
|
||
|
||
- locale.py now uses an updated locale alias table (built using
|
||
Tools/i18n/makelocalealias.py, a tool to parse the X11 locale
|
||
alias file); the encoding lookup was enhanced to use Python's
|
||
encoding alias table.
|
||
|
||
- moved deprecated modules to Lib/lib-old: whrandom, tzparse, statcache.
|
||
|
||
- the pickle module no longer accepts the deprecated None option in the
|
||
args tuple returned by __reduce__().
|
||
|
||
- optparse now optionally imports gettext. This allows its use in setup.py.
|
||
|
||
- the pickle module no longer uses the deprecated bin parameter.
|
||
|
||
- the shelve module no longer uses the deprecated binary parameter.
|
||
|
||
- the pstats module no longer uses the deprecated ignore() method.
|
||
|
||
- the filecmp module no longer uses the deprecated use_statcache argument.
|
||
|
||
- unittest.TestCase.run() and unittest.TestSuite.run() can now be successfully
|
||
extended or overridden by subclasses. Formerly, the subclassed method would
|
||
be ignored by the rest of the module. (Bug #1078905).
|
||
|
||
- heapq.nsmallest() and heapq.nlargest() now support key= arguments with
|
||
the same meaning as in list.sort().
|
||
|
||
- Bug #1076985: ``codecs.StreamReader.readline()`` now calls ``read()`` only
|
||
once when a size argument is given. This prevents a buffer overflow in the
|
||
tokenizer with very long source lines.
|
||
|
||
- Bug #1083110: ``zlib.decompress.flush()`` would segfault if called
|
||
immediately after creating the object, without any intervening
|
||
``.decompress()`` calls.
|
||
|
||
- The reconvert.quote function can now emit triple-quoted strings. The
|
||
reconvert module now has some simple documentation.
|
||
|
||
- ``UserString.MutableString`` now supports negative indices in
|
||
``__setitem__`` and ``__delitem__``
|
||
|
||
- Bug #1149508: ``textwrap`` now handles hyphenated numbers (eg. "2004-03-05")
|
||
correctly.
|
||
|
||
- Partial fixes for SF bugs #1163244 and #1175396: If a chunk read by
|
||
``codecs.StreamReader.readline()`` has a trailing "\r", read one more
|
||
character even if the user has passed a size parameter to get a proper
|
||
line ending. Remove the special handling of a "\r\n" that has been split
|
||
between two lines.
|
||
|
||
- Bug #1251300: On UCS-4 builds the "unicode-internal" codec will now complain
|
||
about illegal code points. The codec now supports PEP 293 style error
|
||
handlers.
|
||
|
||
- Bug #1235646: ``codecs.StreamRecoder.next()`` now reencodes the data it reads
|
||
from the input stream, so that the output is a byte string in the correct
|
||
encoding instead of a unicode string.
|
||
|
||
- Bug #1202493: Fixing SRE parser to handle '{}' as perl does, rather than
|
||
considering it exactly like a '*'.
|
||
|
||
- Bug #1245379: Add "unicode-1-1-utf-7" as an alias for "utf-7" to
|
||
``encodings.aliases``.
|
||
|
||
- ` uu.encode()`` and ``uu.decode()`` now support unicode filenames.
|
||
|
||
- Patch #1413711: Certain patterns of differences were making difflib
|
||
touch the recursion limit.
|
||
|
||
- Bug #947906: An object oriented interface has been added to the calendar
|
||
module. It's possible to generate HTML calendar now and the module can be
|
||
called as a script (e.g. via ``python -mcalendar``). Localized month and
|
||
weekday names can be ouput (even if an exotic encoding is used) using
|
||
special classes that use unicode.
|
||
|
||
Build
|
||
-----
|
||
|
||
- Fix test_float, test_long, and test_struct failures on Tru64 with gcc
|
||
by using -mieee gcc option.
|
||
|
||
- Patch #1432345: Make python compile on DragonFly.
|
||
|
||
- Build support for Win64-AMD64 was added.
|
||
|
||
- Patch #1428494: Prefer linking against ncursesw over ncurses library.
|
||
|
||
- Patch #881820: look for openpty and forkpty also in libbsd.
|
||
|
||
- The sources of zlib are now part of the Python distribution (zlib 1.2.3).
|
||
The zlib module is now builtin on Windows.
|
||
|
||
- Use -xcode=pic32 for CCSHARED on Solaris with SunPro.
|
||
|
||
- Bug #1189330: configure did not correctly determine the necessary
|
||
value of LINKCC if python was built with GCC 4.0.
|
||
|
||
- Upgrade Windows build to zlib 1.2.3 which eliminates a potential security
|
||
vulnerability in zlib 1.2.1 and 1.2.2.
|
||
|
||
- EXTRA_CFLAGS has been introduced as an environment variable to hold compiler
|
||
flags that change binary compatibility. Changes were also made to
|
||
distutils.sysconfig to also use the environment variable when used during
|
||
compilation of the interpreter and of C extensions through distutils.
|
||
|
||
- SF patch 1171735: Darwin 8's headers are anal about POSIX compliance,
|
||
and linking has changed (prebinding is now deprecated, and libcc_dynamic
|
||
no longer exists). This configure patch makes things right.
|
||
|
||
- Bug #1158607: Build with --disable-unicode again.
|
||
|
||
- spwdmodule.c is built only if either HAVE_GETSPNAM or HAVE_HAVE_GETSPENT is
|
||
defined. Discovered as a result of not being able to build on OS X.
|
||
|
||
- setup.py now uses the directories specified in LDFLAGS using the -L option
|
||
and in CPPFLAGS using the -I option for adding library and include
|
||
directories, respectively, for compiling extension modules against. This has
|
||
led to the core being compiled using the values in CPPFLAGS. It also removes
|
||
the need for the special-casing of both DarwinPorts and Fink for darwin since
|
||
the proper directories can be specified in LDFLAGS (``-L/sw/lib`` for Fink,
|
||
``-L/opt/local/lib`` for DarwinPorts) and CPPFLAGS (``-I/sw/include`` for
|
||
Fink, ``-I/opt/local/include`` for DarwinPorts).
|
||
|
||
- Test in configure.in that checks for tzset no longer dependent on tm->tm_zone
|
||
to exist in the struct (not required by either ISO C nor the UNIX 2 spec).
|
||
Tests for sanity in tzname when HAVE_TZNAME defined were also defined.
|
||
Closes bug #1096244. Thanks Gregory Bond.
|
||
|
||
C API
|
||
-----
|
||
|
||
- ``PyMem_{Del, DEL}`` and ``PyMem_{Free, FREE}`` no longer map to
|
||
``PyObject_{Free, FREE}``. They map to the system ``free()`` now. If memory
|
||
is obtained via the ``PyObject_`` family, it must be released via the
|
||
``PyObject_`` family, and likewise for the ``PyMem_`` family. This has
|
||
always been officially true, but when Python's small-object allocator was
|
||
introduced, an attempt was made to cater to a few extension modules
|
||
discovered at the time that obtained memory via ``PyObject_New`` but
|
||
released it via ``PyMem_DEL``. It's years later, and if such code still
|
||
exists it will fail now (probably with segfaults, but calling wrong
|
||
low-level memory management functions can yield many symptoms).
|
||
|
||
- Added a C API for set and frozenset objects.
|
||
|
||
- Removed PyRange_New().
|
||
|
||
- Patch #1313939: PyUnicode_DecodeCharmap() accepts a unicode string as the
|
||
mapping argument now. This string is used as a mapping table. Byte values
|
||
greater than the length of the string and 0xFFFE are treated as undefined
|
||
mappings.
|
||
|
||
|
||
Tests
|
||
-----
|
||
|
||
- In test_os, st_?time is now truncated before comparing it with ST_?TIME.
|
||
|
||
- Patch #1276356: New resource "urlfetch" is implemented. This enables
|
||
even impatient people to run tests that require remote files.
|
||
|
||
|
||
Documentation
|
||
-------------
|
||
|
||
- Bug #1402224: Add warning to dl docs about crashes.
|
||
|
||
- Bug #1396471: Document that Windows' ftell() can return invalid
|
||
values for text files with UNIX-style line endings.
|
||
|
||
- Bug #1274828: Document os.path.splitunc().
|
||
|
||
- Bug #1190204: Clarify which directories are searched by site.py.
|
||
|
||
- Bug #1193849: Clarify os.path.expanduser() documentation.
|
||
|
||
- Bug #1243192: re.UNICODE and re.LOCALE affect \d, \D, \s and \S.
|
||
|
||
- Bug #755617: Document the effects of os.chown() on Windows.
|
||
|
||
- Patch #1180012: The documentation for modulefinder is now in the library reference.
|
||
|
||
- Patch #1213031: Document that os.chown() accepts argument values of -1.
|
||
|
||
- Bug #1190563: Document os.waitpid() return value with WNOHANG flag.
|
||
|
||
- Bug #1175022: Correct the example code for property().
|
||
|
||
- Document the IterableUserDict class in the UserDict module.
|
||
Closes bug #1166582.
|
||
|
||
- Remove all latent references for "Macintosh" that referred to semantics for
|
||
Mac OS 9 and change to reflect the state for OS X.
|
||
Closes patch #1095802. Thanks Jack Jansen.
|
||
|
||
Mac
|
||
---
|
||
|
||
|
||
New platforms
|
||
-------------
|
||
|
||
- FreeBSD 7 support is added.
|
||
|
||
|
||
Tools/Demos
|
||
-----------
|
||
|
||
- Created Misc/Vim/vim_syntax.py to auto-generate a python.vim file in that
|
||
directory for syntax highlighting in Vim. Vim directory was added and placed
|
||
vimrc to it (was previous up a level).
|
||
|
||
- Added two new files to Tools/scripts: pysource.py, which recursively
|
||
finds Python source files, and findnocoding.py, which finds Python
|
||
source files that need an encoding declaration.
|
||
Patch #784089, credits to Oleg Broytmann.
|
||
|
||
- Bug #1072853: pindent.py used an uninitialized variable.
|
||
|
||
- Patch #1177597: Correct Complex.__init__.
|
||
|
||
- Fixed a display glitch in Pynche, which could cause the right arrow to
|
||
wiggle over by a pixel.
|
||
|
||
----
|
||
|
||
**(For information about older versions, consult the HISTORY file.)**
|