diff options
Diffstat (limited to 'Misc/NEWS')
| -rw-r--r-- | Misc/NEWS | 127 |
1 files changed, 124 insertions, 3 deletions
@@ -2,23 +2,44 @@ Python News +++++++++++ -What's New in Python 3.2.1? -=========================== +What's New in Python 3.3 Alpha 1? +================================= *Release date: XX-XXX-20XX* Core and Builtins ----------------- -- Issue #11510: Fixed optimizer bug which turned "a,b={1,1}" into "a,b=(1,1)". +- _ast.__version__ is now a Mercurial integer and hex revision. - Issue #11432: A bug was introduced in subprocess.Popen on posix systems with 3.2.0 where the stdout or stderr file descriptor being the same as the stdin file descriptor would raise an exception. webbrowser.open would fail. fixed. +- Issue #9856: Change object.__format__ with a non-empty format string + to be a DeprecationWarning. In 3.2 it was a PendingDeprecationWarning. + In 3.4 it will be a TypeError. + +- Issue #11244: The peephole optimizer is now able to constant-fold + arbitrarily complex expressions. This also fixes a 3.2 regression where + operations involving negative numbers were not constant-folded. + - Issue #11450: Don't truncate hg version info in Py_GetBuildInfo() when there are many tags (e.g. when using mq). Patch by Nadeem Vawda. +- Issue #11335: Fixed a memory leak in list.sort when the key function + throws an exception. + +- Issue #8923: When a string is encoded to UTF-8 in strict mode, the result is + cached into the object. Examples: str.encode(), str.encode('utf-8'), + PyUnicode_AsUTF8String() and PyUnicode_AsEncodedString(unicode, "utf-8", + NULL). + +- Issue #10831: PyUnicode_FromFormat() supports %li, %lli and %zi formats. + +- Issue #10829: Refactor PyUnicode_FromFormat(), use the same function to parse + the format string in the 3 steps, fix crashs on invalid format strings. + - Issue #11246: Fix PyUnicode_FromFormat("%V") to decode the byte string from UTF-8 (with replace error handler) instead of ISO-8859-1 (in strict mode). Patch written by Ray Allen. @@ -32,8 +53,19 @@ Core and Builtins - Issue #10830: Fix PyUnicode_FromFormatV("%c") for non-BMP characters on narrow build. +- Issue #11168: Remove filename debug variable from PyEval_EvalFrameEx(). + It encoded the Unicode filename to UTF-8, but the encoding fails on + undecodable filename (on surrogate characters) which raises an unexpected + UnicodeEncodeError on recursion limit. + +- Issue #11187: Remove bootstrap code (use ASCII) of + PyUnicode_AsEncodedString(), it was replaced by a better fallback (use the + locale encoding) in PyUnicode_EncodeFSDefault(). + - Check for NULL result in PyType_FromSpec. +- Issue #10516: New copy() and clear() methods for lists and bytearrays. + - Issue #11386: bytearray.pop() now throws IndexError when the bytearray is empty, instead of OverflowError. @@ -51,9 +83,18 @@ Library not installed. Instead, the zipfile.ZIP_STORED compression is used to create the ZipFile. Patch by Natalia B. Bidart. +- Issue #11289: `smtp.SMTP` class becomes a context manager so it can be used + in a `with` statement. Contributed by Giampaolo Rodola. + - Issue #11554: Fixed support for Japanese codecs; previously the body output encoding was not done if euc-jp or shift-jis was specified as the charset. +- Issue #11509: Significantly increase test coverage of fileinput. + Patch by Denver Coneybeare at PyCon 2011 Sprints. + +- Issue #11407: `TestCase.run` returns the result object used or created. + Contributed by Janathan Hartley. + - Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified IP addresses in the proxy exception list. @@ -61,16 +102,26 @@ Library the "n" as the flag argument and the file exists. The behavior matches the documentation and general logic. +- Issue #1162477: Postel Principal adjustment to email date parsing: handle the + fact that some non-compliant MUAs use '.' instead of ':' in time specs. + - Issue #11131: Fix sign of zero in decimal.Decimal plus and minus operations when the rounding mode is ROUND_FLOOR. +- Issue #9935: Speed up pickling of instances of user-defined classes. + - Issue #5622: Fix curses.wrapper to raise correct exception if curses initialization fails. +- Issue #11408: In threading.Lock.acquire(), only call gettimeofday() when + really necessary. Patch by Charles-François Natali. + - Issue #11391: Writing to a mmap object created with ``mmap.PROT_READ|mmap.PROT_EXEC`` would segfault instead of raising a TypeError. Patch by Charles-François Natali. +- Issue #9795: add context manager protocol support for nntplib.NNTP class. + - Issue #11306: mailbox in certain cases adapts to an inability to open certain files in read-write mode. Previously it detected this by checking for EACCES, now it also checks for EROFS. @@ -78,31 +129,86 @@ Library - Issue #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors on accept(), send() and recv(). +- Issue #11377: Deprecate platform.popen() and reimplement it with os.popen(). + +- Issue #8513: On UNIX, subprocess supports bytes command string. + +- Issue #10866: Add socket.sethostname(). Initial patch by Ross Lagerwall. + +- Issue #11140: Lock.release() now raises a RuntimeError when attempting + to release an unacquired lock, as claimed in the threading documentation. + The _thread.error exception is now an alias of RuntimeError. Patch by + Filip Gruszczyński. Patch for _dummy_thread by Aymeric Augustin. + +- Issue 8594: ftplib now provides a source_address parameter to specify which + (address, port) to bind to before connecting. + - Issue #11326: Add the missing connect_ex() implementation for SSL sockets, and make it work for non-blocking connects. +- Issue #11297: Add collections.ChainMap(). + +- Issue #10755: Add the posix.fdlistdir() function. Patch by Ross Lagerwall. + +- Issue #4761: Add the *at() family of functions (openat(), etc.) to the posix + module. Patch by Ross Lagerwall. + - Issue #7322: Trying to read from a socket's file-like object after a timeout occurred now raises an error instead of silently losing data. +- Issue 11291: poplib.POP no longer suppresses errors on quit(). + +- Issue 11177: asyncore's create_socket() arguments can now be omitted. + +- Issue #6064: Add a ``daemon`` keyword argument to the threading.Thread + and multiprocessing.Process constructors in order to override the + default behaviour of inheriting the daemonic property from the current + thread/process. + - Issue #10956: Buffered I/O classes retry reading or writing after a signal has arrived and the handler returned successfully. +- Issue #10784: New os.getpriority() and os.setpriority() functions. + +- Issue #11114: Fix catastrophic performance of tell() on text files (up + to 1000x faster in some cases). It is still one to two order of magnitudes + slower than binary tell(). + +- Issue 10882: Add os.sendfile function. + +- Issue #10868: Allow usage of the register method of an ABC as a class + decorator. + - Issue #11224: Fixed a regression in tarfile that affected the file-like objects returned by TarFile.extractfile() regarding performance, memory consumption and failures with the stream interface. +- Issue #10924: Adding salt and Modular Crypt Format to crypt library. + Moved old C wrapper to _crypt, and added a Python wrapper with + enhanced salt generation and simpler API for password generation. + - Issue #11074: Make 'tokenize' so it can be reloaded. +- Issue #11085: Moved collections abstract base classes into a separate + module called collections.abc, following the pattern used by importlib.abc. + For backwards compatibility, the names are imported into the collections + module. + - Issue #4681: Allow mmap() to work on file sizes and offsets larger than 4GB, even on 32-bit builds. Initial patch by Ross Lagerwall, adapted for 32-bit Windows. +- Issue #11169: compileall module uses repr() to format filenames and paths to + escape surrogate characters and show spaces. + - Issue #11089: Fix performance issue limiting the use of ConfigParser() with large config files. - Issue #10276: Fix the results of zlib.crc32() and zlib.adler32() on buffers larger than 4GB. Patch by Nadeem Vawda. +- Issue #11388: Added a clear() method to MutableSequence + Build ----- @@ -111,6 +217,8 @@ Build - Issue #11268: Prevent Mac OS X Installer failure if Documentation package had previously been installed. +- Issue #11495: OSF support is eliminated. It was deprecated in Python 3.2. + Tools/Demos ----------- @@ -121,6 +229,8 @@ Tests - Issue #11554: Reactivated test_email_codecs. +- Issue #11505: improves test coverage of string.py + - Issue #11490: test_subprocess:test_leaking_fds_on_error no longer gives a false positive if the last directory in the path is inaccessible. @@ -133,9 +243,20 @@ Tests - Issue #9931: Fix hangs in GUI tests under Windows in certain conditions. Patch by Hirokazu Yamamoto. +- Issue #10512: Properly close sockets under test.test_cgi. + +- Issue #10992: Make tests pass under coverage. + - Issue #10826: Prevent sporadic failure in test_subprocess on Solaris due to open door files. +- Issue #10990: Prevent tests from clobbering a set trace function. + +C-API +----- + +- PY_PATCHLEVEL_REVISION has been removed, since it's meaningless with Mercurial. + What's New in Python 3.2? ========================= |