5
(editors: check NEWS.help for information about editing NEWS using ReST.)
7
What's New in Python 3.1.1?
8
===========================
10
*Release date: 2009-08-13*
15
- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
17
- Issue #6750: A text file opened with io.open() could duplicate its output
18
when writing from multiple threads at the same time.
20
- Issue #6707: dir() on an uninitialized module caused a crash.
22
- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
24
- Issue #6573: set.union() stopped processing inputs if an instance of self
25
occurred in the argument chain.
27
- Issue #6070: On posix platforms import no longer copies the execute bit
28
from the .py file to the .pyc file if it is set.
30
- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
31
object, and not an int. Fix the corresponding error message, and the
34
- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
35
This fixes a build failure on HP-UX: int32_t and uint32_t are
36
defined in inttypes.h instead of stdint.h on that platform.
38
- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
39
the 'surrogateescape' error handler, a string which contains unpaired
45
- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
46
NUL: Bogus TypeError detail string.
48
- Issue #6405: Remove duplicate type declarations in descrobject.h.
50
- The code flags for old __future__ features are now available again.
55
- Issue #6888: pdb's alias command was broken when no arguments were given.
57
- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
58
returning NaN or raising InvalidContext. Also, fix infinite recursion
59
in long(Decimal('nan')).
61
- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
62
with no type specifier.
64
- Issue #6239: ctypes.c_char_p return value must return bytes.
66
- Issue #6838: Use a list to accumulate the value instead of
67
repeatedly concatenating strings in http.client's
68
HTTPResponse._read_chunked providing a significant speed increase
69
when downloading large files servend with a Transfer-Encoding of 'chunked'.
71
- Have importlib raise ImportError if None is found in sys.modules for a
74
- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
75
payloads are now ordered by integer value rather than lexicographically.
77
- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
80
- Issue #6126: Fixed pdb command-line usage.
82
- Issue #6629: Fix a data corruption issue in the new I/O library, which could
83
occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
84
"wb+" mode) after having buffered a certain amount of data for reading. This
85
bug was not present in the pure Python implementation.
87
- Issue #6622: Fix "local variable 'secret' referenced before
88
assignment" bug in POP3.apop.
90
- Issue #6637: defaultdict.copy() did not work when the default factory
91
was left unspecified. Also, the eval/repr round-trip would fail when
92
the default_factory was None.
94
- Issue #2715: Remove remnants of Carbon.File from binhex module.
96
- Issue #6595: The Decimal constructor now allows arbitrary Unicode
97
decimal digits in input, as recommended by the standard. Previously
98
it was restricted to accepting [0-9].
100
- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
101
unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
104
- Issue #1424152: Fix for http.client, urllib.request to support SSL while
105
working through proxy. Original patch by Christopher Li, changes made by
108
- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
109
the documentation said it did even though the code in PyLoader relied on the
110
abstract method required by ResourceLoader.
112
- Issue #6431: Make Fraction type return NotImplemented when it doesn't
113
know how to handle a comparison without loss of precision. Also add
114
correct handling of infinities and nans for comparisons with float.
116
- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
118
- Issue #6358: The exit status of a command started with os.popen() was
119
reported differently than it did with python 2.x.
121
- Issue #6323: The pdb debugger did not exit when running a script with a
124
- Issue #3392: The subprocess communicate() method no longer fails in select()
125
when file descriptors are large; communicate() now uses poll() when possible.
127
- Issue #6369: Fix an RLE decompression bug in the binhex module.
129
- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
131
- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
137
- Issue #6848: Fix curses module build failure on OS X 10.6.
139
- Fix a segfault in expat.
141
- Issue #4509: array.array objects are no longer modified after an operation
142
failing due to the resize restriction in-place when the object has exported
148
- Issue #6802: Fix build issues on MacOSX 10.6
150
- Issue 4601: 'make install' did not set the appropriate permissions on
153
- Issue 5390: Add uninstall icon independent of whether file
154
extensions are installed.
159
- Issue #6556: Fixed the Distutils configuration files location explanation
165
- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
166
testing when a .pyc file lacked an code object bytecode.
169
What's New in Python 3.1?
170
=========================
172
*Release date: 27-June-2009*
177
- Issue #6334: Fix bug in range length calculation for ranges with
180
- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
181
because it wasn't recognized as a sequence).
186
- Issue #6314: logging.basicConfig() performs extra checks on the "level"
189
- Issue #6274: Fixed possible file descriptors leak in subprocess.py
191
- Accessing io.StringIO.buffer now raises an AttributeError instead of
192
io.UnsupportedOperation.
194
- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
197
- Issue #1202: zipfile module would cause a struct.error when attempting to
198
store files with a CRC32 > 2**31-1.
203
- Issue #5590: Remove unused global variable in pyexpat extension.
206
What's New in Python 3.1 Release Candidate 2?
207
=============================================
209
*Release date: 13-June-2009*
214
- Fixed SystemError triggered by "range([], 1, -1)".
216
- Issue #5924: On Windows, a large PYTHONPATH environment variable
217
(more than 255 characters) would be completely ignored.
219
- Issue #4547: When debugging a very large function, it was not always
220
possible to update the lineno attribute of the current frame.
222
- Issue #5330: C functions called with keyword arguments were not reported by
223
the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
228
- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
229
expression string pattern was trying to match against a bytes returned by
230
Popen. Tested under win32 to build the py-postgresql project.
232
- Issue #6258: Support AMD64 in bdist_msi.
234
- Issue #6195: fixed doctest to no longer try to read 'source' data from
237
- Issue #5262: Fixed bug in next rollover time computation in
238
TimedRotatingFileHandler.
240
- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
241
errors property. Additionally, the errors and encoding properties of StringIO
244
- Issue #6137: The pickle module now translates module names when loading
245
or dumping pickles with a 2.x-compatible protocol, in order to make data
246
sharing and migration easier. This behaviour can be disabled using the
247
new `fix_imports` optional argument.
249
- Removed the ipaddr module.
251
- Issue #3613: base64.{encode,decode}string are now called
252
base64.{encode,decode}bytes which reflects what type they accept and return.
253
The old names are still there as deprecated aliases.
255
- Issue #5767: Remove sgmlop support from xmlrpc.client.
257
- Issue #6150: Fix test_unicode on wide-unicode builds.
259
- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
265
- Issue #6221: Delete test registry key before running the test.
267
- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
272
- Issue #5735: Python compiled with --with-pydebug should throw an
273
ImportError when trying to import modules compiled without
274
--with-pydebug, and vice-versa.
280
- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
281
added LIBS to OS X framework builds.
283
- Issue #5809: Specifying both --enable-framework and --enable-shared is
284
an error. Configure now explicity tells you about this.
288
What's New in Python 3.1 release candidate 1?
289
=============================================
291
*Release date: 2009-05-30*
296
- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
299
- Issue #6012: Add cleanup support to O& argument parsing.
301
- Issue #6089: Fixed str.format with certain invalid field specifiers
302
that would raise SystemError.
304
- Issue #5982: staticmethod and classmethod now expose the wrapped
305
function with __func__.
307
- Added support for multiple context managers in the same with-statement.
308
Deprecated contextlib.nested() which is no longer needed.
310
- Issue #5829: complex("1e500") no longer raises OverflowError. This
311
makes it consistent with float("1e500") and interpretation of real
312
and imaginary literals.
314
- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
316
- Issue #5994: the marshal module now has docstrings.
318
- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
319
(1) inf and nan strings with trailing whitespace were incorrectly
320
rejected; (2) parsing of strings representing infinities and nans
321
was locale aware; and (3) the interpretation of fromhex('-nan')
322
didn't match that of float('-nan').
327
- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
329
- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
331
- Issue #6121: pydoc now ignores leading and trailing spaces in the
332
argument to the 'help' function.
334
- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
335
arguments for strings with a space in them.
337
- collections.namedtuple() was not working with the following field
338
names: cls, self, tuple, itemgetter, and property.
340
- In unittest, using a skipping decorator on a class is now equivalent to
341
skipping every test on the class. The ClassTestSuite class has been removed.
343
- Issue #6050: Don't fail extracting a directory from a zipfile if
344
the directory already exists.
346
- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
347
than an int, which makes some operations possible under 64-bit Linux (e.g.
348
DN_MULTISHOT with F_NOTIFY).
350
- Issue #5761: Add the name of the underlying file to the repr() of various
353
- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
354
by Musashi Tamura, tests by Marcin Bachry.
356
- Issue #1983: Fix functions taking or returning a process identifier to use
357
the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
358
a process identifier type wider than the standard C integer type.
360
- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
361
Patch by Farhan Ahmad, test by Marcin Bachry.
363
- Issue #2116: Weak references and weak dictionaries now support copy()ing and
366
- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
368
- Issue #5918: Fix a crash in the parser module.
370
- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
372
- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
373
library. This means, for example, that opening an UTF-16 text file in
374
append mode doesn't add a BOM at the end of the file if the file isn't
377
- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
378
file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
379
corrects a pydoc regression.
381
- Issue 5955: aifc's close method did not close the file it wrapped,
382
now it does. This also means getfp method now returns the real fp.
387
- Issue #6047: fullinstall has been removed because Python 3's executable will
388
now be known as python3.
390
- Lib/smtpd.py is no longer installed as a script.
395
- Issue #3061: Use wcsftime for time.strftime where available.
397
- Issue #4873: Fix resource leaks in error cases of pwd and grp.
399
- Issue #6093: Fix off-by-one error in locale.strxfrm.
401
- The _functools and _locale modules are now built into the libpython shared
402
library instead of as extension modules.
407
- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
408
and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
414
- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
415
tests on darwin even when the OS was installed on a case-sensitive
416
filesystem. Also fixed tests that should not be run when
417
sys.dont_write_bytecode is true.
420
What's New in Python 3.1 beta 1?
421
================================
423
*Release date: 2009-05-06*
428
- Issue #5914: Add new C API function PyOS_string_to_double, and
429
deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
431
- Issue #3382: float.__format__, complex.__format__, and %-formatting
432
no longer map 'F' to 'f'. Because of issue #5859 (below), this only
433
affects nan -> NAN and inf -> INF.
435
- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
436
in all operations, including splitdrive, split, etc. splitunc() now issues
437
a PendingDeprecation warning.
439
- Issue #5920: For float.__format__, change the behavior with the
440
empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
441
to be like 'g' but with at least one decimal point and with a
442
default precision of 12. Previously, the behavior the same but with
443
a default precision of 6. This more closely matches str(), and
444
reduces surprises when adding alignment flags to the empty
445
presentation type. This also affects the new complex.__format__ in
448
- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
450
- Issue #5890: in subclasses of 'property' the __doc__ attribute was
451
shadowed by classtype's, even if it was None. property now
452
inserts the __doc__ into the subclass instance __dict__.
454
- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
455
sequences. Patch by Nick Barnes and Victor Stinner.
457
- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
459
- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
460
received a new method, detach(). detach() disconnects the underlying stream
461
from the buffer or text IO and returns it.
463
- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
464
floats with absolute value over 1e50. Also remove length
465
restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
466
12.34 no longer raise an exception.
468
- Issue #1588: Add complex.__format__. For example,
469
format(complex(1, 2./3), '.5') now produces a sensible result.
471
- Issue #5864: Fix empty format code formatting for floats so that it
472
never gives more than the requested number of significant digits.
474
- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
475
new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
477
- Issue #5835: Deprecate PyOS_ascii_formatd.
479
- Issue #4971: Fix titlecase for characters that are their own
480
titlecase, but not their own uppercase.
482
- Issue #5283: Setting __class__ in __del__ caused a segfault.
484
- Issue #5816: complex(repr(z)) now recovers z exactly, even when
485
z involves nans, infs or negative zeros.
487
- Issue #3166: Make int -> float conversions correctly rounded.
489
- Issue #1869 (and many duplicates): make round(x, n) correctly
490
rounded for a float x, by using the decimal <-> binary conversions
491
from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
492
consistently agrees with format(x, '.2f').
494
- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
497
- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
499
- Issue #5515: str.format() type 'n' combined with commas and leading
500
zeros no longer gives odd results with ints and floats.
502
- Implement PEP 378, Format Specifier for Thousands Separator, for
505
- The str function switches to exponential notation at
506
1e11, not 1e12. This avoids printing 13 significant digits in
507
situations where only 12 of them are correct. Example problem
508
value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
511
- Issue #1580: On most platforms, use a 'short' float repr: for a
512
finite float x, repr(x) now outputs a string based on the shortest
513
sequence of decimal digits that rounds to x. Previous behaviour was
514
to output 17 significant digits and then strip trailing zeros.
515
Another minor difference is that the new repr switches to
516
exponential notation at 1e16 instead of the previous 1e17; this
517
avoids misleading output in some cases.
519
There's a new sys attribute sys.float_repr_style, which takes
520
the value 'short' to indicate that we're using short float repr,
521
and 'legacy' if the short float repr isn't available for one
524
The float repr change involves incorporating David Gay's 'perfect
525
rounding' code into the Python core (it's in Python/dtoa.c). As a
526
secondary consequence, all string-to-float and float-to-string
527
conversions (including all float formatting operations) will be
528
correctly rounded on these platforms.
530
See issue 1580 discussions for details of platforms for which
531
this change does not apply.
533
- Issue #5759: float() didn't call __float__ on str subclasses.
535
- The string.maketrans() function is deprecated; there is a new static method
536
maketrans() on the bytes and bytearray classes. This removes confusion about
537
the types string.maketrans() is supposed to work with, and mirrors the
538
methods available on the str class.
540
- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
541
its clarity and its speed.
543
- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
544
to avoid compiler warnings.
546
- Issue #3739: The unicode-internal encoder now reports the number of characters
547
consumed like any other encoder (instead of the number of bytes).
552
- Issue #5756: Install idle and pydoc with a 3 suffix.
557
- Issue #5311: bdist_msi can now build packages that do not depend on a
558
specific Python version.
560
- Issue #5150: IDLE's format menu now has an option to strip trailing
563
- Issue #5940: distutils.command.build_clib.check_library_list was not doing
564
the right type checkings anymore.
566
- Issue #4875: On win32, ctypes.util.find_library does no longer
569
- Issue #5142: Add the ability to skip modules while stepping to pdb.
571
- Issue #1309567: Fix linecache behavior of stripping subdirectories when
572
looking for files given by a relative filename.
574
- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
575
turtle demos in Demo/turtle.
577
- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
578
extracting a file to the root directory.
580
- Issue #5913: os.listdir() should fail for empty path on windows.
582
- Issue #5084: unpickling now interns the attribute names of pickled objects,
583
saving memory and avoiding growth in size of subsequent pickles. Proposal
584
and original patch by Jake McGuire.
586
- The json module now works exclusively with str and not bytes.
588
- Issue #3959: The ipaddr module has been added to the standard library.
589
Contributed by Google.
591
- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
592
error when a named pipe is encountered, rather than blocking infinitely.
594
- Issue #5857: tokenize.tokenize() now returns named tuples.
596
- Issue #4305: ctypes should now build again on mipsel-linux-gnu
598
- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
599
string is already in normalized form, by performing a quick check beforehand.
600
Original patch by Rauli Ruohonen.
602
- Issue #5853: calling a function of the mimetypes module from several threads
603
at once could hit the recursion limit if the mimetypes database hadn't been
606
- Issue #5854: Updated __all__ to include some missing names and remove some
607
names which should not be exported.
609
- Issue #3102: All global symbols that the _ctypes extension defines
610
are now prefixed with 'Py' or '_ctypes'.
612
- Issue #5041: ctypes does now allow pickling wide character.
614
- Issue #5812: For the two-argument form of the Fraction constructor,
615
Fraction(m, n), m and n are permitted to be arbitrary Rational
618
- Issue #5812: Fraction('1e6') is valid: more generally, any string
619
that's valid for float() is now valid for Fraction(), with the
620
exception of strings representing NaNs and infinities.
622
- Issue #5734: BufferedRWPair was poorly tested and had several glaring
623
bugs. Patch by Brian Quinlan.
625
- Issue #1161031: fix readwrite select flag handling: POLLPRI now
626
results in a handle_expt_event call, not handle_read_event, and POLLERR
627
and POLLNVAL now call handle_close, not handle_expt_event. Also,
628
dispatcher now has an 'ignore_log_types' attribute for suppressing
629
log messages, which is set to 'warning' by default.
631
- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
632
new arguments introduced in 2.5.
634
- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
635
makeunicodedata.py and regenerated the Unicode database (This fixes
636
u'\u1d79'.lower() == '\x00').
641
- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
644
- Issue #5463: In struct module, remove deprecated float coercion
645
for integer type codes: struct.pack('L', 0.3) should now raise
646
an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
647
The version number has been bumped to 0.3.
649
- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
655
- Issue #5354: New test support function import_fresh_module() makes
656
it easy to import both normal and optimised versions of modules.
657
test_heapq and test_warnings have been adjusted to use it, tests for
658
other modules with both C and Python implementations in the stdlib
659
can be adjusted to use it over time.
661
- Issue #5837: Certain sequences of calls to set() and unset() for
662
support.EnvironmentVarGuard objects restored the environment variables
663
incorrectly on __exit__.
668
- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
671
What's New in Python 3.1 alpha 2?
672
=================================
674
*Release date: 2009-4-4*
679
- Implement PEP 378, Format Specifier for Thousands Separator, for
682
- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
684
- Issue #5499: The 'c' code for argument parsing functions now only accepts a
685
byte, and the 'C' code only accepts a unicode character.
687
- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
688
when hitting the recursion limit under certain circumstances.
690
- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
692
- Fix a segfault when running test_exceptions with coverage, caused by
693
insufficient checks in accessors of Exception.__context__.
695
- Issue #5604: non-ASCII characters in module name passed to
696
imp.find_module() were converted to UTF-8 while the path is
697
converted to the default filesystem encoding, causing nonsense.
699
- Issue #5126: str.isprintable() returned False for space characters.
701
- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
702
the end sys.path, for compatibility with the system install of Python.
704
- Issue #4688: Add a heuristic so that tuples and dicts containing only
705
untrackable objects are not tracked by the garbage collector. This can
706
reduce the size of collections and therefore the garbage collection overhead
707
on long-running programs, depending on their particular use of datatypes.
709
- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
710
improve its performance. Long divisions and remainder operations
711
are now between 50% and 150% faster.
713
- Issue #4258: Make it possible to use base 2**30 instead of base
714
2**15 for the internal representation of integers, for performance
715
reasons. Base 2**30 is enabled by default on 64-bit machines. Add
716
--enable-big-digits option to configure, which overrides the
717
default. Add sys.int_info structseq to provide information about
720
- Issue #4474: PyUnicode_FromWideChar now converts characters outside
721
the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
722
and sizeof(Py_UNICODE) == 2.
724
- Issue #5237: Allow auto-numbered fields in str.format(). For
725
example: '{} {}'.format(1, 2) == '1 2'.
727
- Issue #5392: when a very low recursion limit was set, the interpreter would
728
abort with a fatal error after the recursion limit was hit twice.
730
- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
736
- Issue #2625: added missing items() call to the for loop in
737
mailbox.MH.get_message().
739
- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
740
error substitutions from non-strict codec error callbacks in
741
incrementalencoder and StreamWriter.
743
- Issue #5656: Fix the coverage reporting when running the test suite with
746
- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
748
- Issue #5624: Fix the _winreg module name still used in several modules.
750
- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
752
- Issue #5619: Multiprocessing children disobey the debug flag and causes
753
popups on windows buildbots. Patch applied to work around this issue.
755
- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
757
- Issue #5387: Fixed mmap.move crash by integer overflow.
759
- Issue #5261: Patch multiprocessing's semaphore.c to support context
760
manager use: "with multiprocessing.Lock()" works now.
762
- Issue #5236: Change time.strptime() to only take strings. Didn't work with
763
bytes already but the failure was non-obvious.
765
- Issue #5177: Multiprocessing's SocketListener class now uses
766
socket.SO_REUSEADDR on all connections so that the user no longer needs
767
to wait 120 seconds for the socket to expire.
769
- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
771
- Issue #1174606: Calling read() without arguments of an unbounded file
772
(typically /dev/zero under Unix) could crash the interpreter.
774
- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
775
io.BufferedRandom have been deprecated for removal in Python 3.2.
777
- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
778
forever on incomplete input. That caused tarfile.open() to hang when used
779
with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
780
partial bzip2 compressed data.
782
- Issue #2110: Add support for thousands separator and 'n' type
783
specifier to Decimal.__format__
785
- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
786
'>' alignment characters.
788
- The error detection code in FileIO.close() could fail to reflect the `errno`
789
value, and report it as -1 instead.
791
- Issue #5016: FileIO.seekable() could return False if the file position
792
was negative when truncated to a C int. Patch by Victor Stinner.
797
- Issue #5391: mmap now deals exclusively with bytes.
799
- Issue #5463: In struct module, remove deprecated overflow wrapping
800
when packing an integer: struct.pack('=L', -1) now raises
801
struct.error instead of returning b'\xff\xff\xff\xff'. The
802
_PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
803
have been removed from the struct module.
806
What's New in Python 3.1 alpha 1
807
================================
809
*Release date: 2009-03-07*
814
- The io module has been reimplemented in C for speed.
816
- Give dict views an informative __repr__.
818
- Issue #5247: Improve error message when unknown format codes are
819
used when using str.format() with str, int, and float arguments.
821
- Issue #5249: time.strftime returned malformed string when format string
822
contained non ascii character on windows.
824
- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
825
source has already been decoded into str.
827
- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
828
rotating the object pointer by 4 bits to the right.
830
- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
831
it now forces its argument to double before testing for infinity.
833
- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
834
returns a non-number type.
836
- Issue #5182: Removed memoryview.__str__.
838
- Issue #1717: Removed builtin cmp() function, dropped tp_compare
839
slot, the C API functions PyObject_Compare and PyUnicode_Compare and
840
the type definition cmpfunc. The tp_compare slot has been renamed
841
to tp_reserved, and is reserved for future usage.
843
- Issue #1242657: the __len__() and __length_hint__() calls in several tools
844
were suppressing all exceptions. These include list() and bytearray().
846
- Issue #4707: round(x, n) now returns an integer if x is an integer.
847
Previously it returned a float.
849
- Issue #4753: By enabling a configure option named '--with-computed-gotos'
850
on compilers that support it (notably: gcc, SunPro, icc), the bytecode
851
evaluation loop is compiled with a new dispatch mechanism which gives
852
speedups of up to 20%, depending on the system, on various benchmarks.
854
- Issue #4874: Most builtin decoders now reject unicode input.
856
- Issue #4842: Don't allow trailing 'L' when constructing an integer
859
- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
861
- Issue #4838: When a module is deallocated, free the memory backing the
862
optional module state data.
864
- Issue #4910: Rename nb_long slot to nb_reserved, and change its
867
- Issue #4935: The overflow checking code in the expandtabs() method common
868
to str, bytes and bytearray could be optimized away by the compiler, letting
869
the interpreter segfault instead of raising an error.
871
- Issue #3720: Fix a crash when an iterator modifies its class and removes its
874
- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
875
function no longer attempt to call the __long__ slot to convert an object
876
to an integer. Only the __int__ and __trunc__ slots are examined.
878
- Issue #4893: Use NT threading on CE.
880
- Issue #4915: Port sysmodule to Windows CE.
882
- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
883
common cases are optimized thanks to a dedicated fast path and a moderate
884
amount of loop unrolling.
886
- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
887
collecting the oldest generation) so that allocating lots of objects without
888
destroying them does not show quadratic performance. Based on a proposal by
890
http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
892
- Issue #4604: Some objects of the I/O library could still be used after
893
having been closed (for instance, a read() call could return some
894
previously buffered data). Patch by Dmitry Vasiliev.
896
- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
897
flag to work properly. Furthermore, when specifying -u, the text stdout
898
and stderr streams have line-by-line buffering enabled (the default being
899
to buffer arbitrary chunks of data).
901
- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
902
instead of ints (reducing its size from 4 to 8 times thereby reducing
903
Python's overall memory).
905
- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
906
an existing .py counterpart, override the co_filename attributes of all
907
code objects if the original filename is obsolete (which can happen if the
908
file has been renamed, moved, or if it is accessed through different paths).
909
Patch by Ziga Seilnacht and Jean-Paul Calderone.
911
- Issue #4580: Fix slicing of memoryviews when the item size is greater than
912
one byte. Also fixes the meaning of len() so that it returns the number of
913
items, rather than the size in bytes.
915
- Issue #4075: Use OutputDebugStringW in Py_FatalError.
917
- Issue #4747: When the terminal does not use utf-8, executing a script with
918
non-ascii characters in its name could fail with a "SyntaxError: None" error.
920
- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
921
file with `bytes' filename on Windows.
923
- Issue #3680: Reference cycles created through a dict, set or deque iterator
924
did not get collected.
926
- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
927
where the tp_hash and tp_dict slots are both NULL.
929
- Issue #4759: None is now allowed as the first argument of
930
bytearray.translate(). It was always allowed for bytes.translate().
932
- Added test case to ensure attempts to read from a file opened for writing
935
- Issue #3106: Speedup some comparisons (str/str and int/int).
937
- Issue #2183: Simplify and optimize bytecode for list, dict and set
938
comprehensions. Original patch for list comprehensions by Neal Norwitz.
940
- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
941
print elapsed times, not only when some objects are uncollectable /
942
unreachable. Original patch by Neil Schemenauer.
944
- Issue #3439: Add a bit_length method to int.
946
- Issue #2173: When getting device encoding, check that return value of
947
nl_langinfo is not the empty string. This was causing silent build
950
- Issue #4597: Fixed several opcodes that weren't always propagating
953
- Issue #4589: Fixed exception handling when the __exit__ function of a
954
context manager returns a value that cannot be converted to a bool.
956
- Issue #4445: Replace "sizeof(PyBytesObject)" with
957
"offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
958
bytes instances. On a typical machine this saves 3 bytes of memory
959
(on average) per allocation of a bytes instance.
961
- Issue #4533: File read operation was dreadfully slow due to a slowly
962
growing read buffer. Fixed by using the same growth rate algorithm as
965
- Issue #4509: Various issues surrounding resize of bytearray objects to
966
which there are buffer exports (e.g. memoryview instances).
968
- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
969
method on file objects with closefd=False. The file descriptor is still
970
kept open but the file object behaves like a closed file. The ``FileIO``
971
object also got a new readonly attribute ``closefd``.
973
- Issue #4569: Interpreter crash when mutating a memoryview with an item size
976
- Issue #4748: Lambda generators no longer return a value.
978
- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
980
- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
981
PyUnicode_DecodeUTF8() once, remember the result and output it in a second
982
step. This avoids problems with counting UTF-8 bytes that ignores the effect
983
of using the replace error handler in PyUnicode_DecodeUTF8().
988
- Issue #6163: Fixed HP-UX runtime library dir options in
989
distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
990
Michael Haubenwallner.
992
- Issue #6545: Removed assert statements in distutils.Extension, so the
993
behavior is similar when used with -O.
995
- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
996
"PyInit" prefix, rather than "init".
998
- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1000
- Issue #6455: Fixed test_build_ext under win32.
1002
- Issue #6413: Fixed the log level in distutils.dist for announce.
1004
- Issue #6403: Fixed package path usage in build_ext.
1006
- Issue #6365: Distutils build_ext inplace mode was copying the compiled
1007
extension in a subdirectory if the extension name had dots.
1009
- Issue #6287: Added the license field in Distutils documentation.
1011
- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1013
- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1014
in Makefiles. This prevents compile errors when using syntax like:
1015
`LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1017
- Issue #6131: test_modulefinder leaked when run after test_distutils.
1018
Patch by Hirokazu Yamamoto.
1020
- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1022
- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
1023
and tests on pywin32 by Tim Golden.
1025
- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1027
- Issue #6046: Fixed the library extension when distutils build_ext is used
1028
inplace. Initial patch by Roumen Petrov.
1030
- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
1033
- Issue #6022: a test file was created in the current working directory by
1034
test_get_outputs in Distutils.
1036
- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1037
inplace option. Initial patch by kxroberto.
1039
- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1040
for old-style extensions.
1042
- Issue #5976: Fixed Distutils test_check_environ.
1044
- Issue #5941: Distutils build_clib command was not working anymore because
1045
of an incomplete costumization of the archiver command. Added ARFLAGS in the
1046
Makefile besides AR and make Distutils use it. Original patch by David
1049
- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1051
- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
1054
- Issue #5810: Fixed Distutils test_build_scripts so it uses
1055
sysconfig.get_config_vars.
1057
- Issue #4951: Fixed failure in test_httpservers.
1059
- Issue #5795: Fixed test_distutils failure on Debian ppc.
1061
- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1063
- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1064
a value in SafeConfigParser.
1066
- Issue #5732: added a new command in Distutils: check.
1068
- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
1069
platforms. Initial patch by Paul Moore.
1071
- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1072
Initial fix by Steven Bethard.
1074
- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1075
Initial fix by Wayne Davison.
1077
- Issue #5694: removed spurious test output in Distutils (test_clean).
1079
- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
1081
- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1082
instead of performing them in functions. Helps prevent import deadlocking in
1085
- Issue #2522: locale.format now checks its first argument to ensure it has
1086
been passed only one pattern, avoiding mysterious errors where it appeared
1087
that it was failing to do localization.
1089
- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1092
- Issue #1222: locale.format() bug when the thousands separator is a space
1095
- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1098
- collections.deque() objects now have a read-only attribute called maxlen.
1100
- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1101
it is has been populated and properly configured in order to prevent
1104
- Issue #4792: Prevent a segfault in _tkinter by using the
1105
guaranteed to be safe interp argument given to the PythonCmd in place of
1106
the Tcl interpreter taken from a PythonCmd_ClientData.
1108
- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1110
- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1111
Original patch by Akira Kitada.
1113
- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1115
- Issue #5385: Fixed mmap crash after resize failure on windows.
1117
- Issue #5179: Fixed subprocess handle leak on failure on windows.
1119
- PEP 372: Added collections.OrderedDict().
1121
- The _asdict() for method for namedtuples now returns an OrderedDict().
1123
- configparser now defaults to using an ordered dictionary.
1125
- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1126
import guess_extension`` was used.
1128
- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1129
with same tagname but larger size than first map. (Windows)
1131
- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1134
- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1137
- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1139
- Issue #5052: make Distutils compatible with 2.3 again.
1141
- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1144
- Issue #5287: Add exception handling around findCaller() call to help out
1147
- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1148
The file was resized to wrong size.
1150
- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1152
- Issue #2279: distutils.sdist.add_defaults now add files
1153
from the package_data and the data_files metadata.
1155
- Issue #5257: refactored all tests in distutils, so they use
1156
support.TempdirManager, to avoid writing in the tests directory.
1158
- Issue #4524: distutils build_script command failed with --with-suffix=3.
1159
Initial patch by Amaury Forgeot d'Arc.
1161
- Issue #2461: added tests for distutils.util
1163
- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1164
which inherited from numbers.py which did not have __slots__ defined. The
1165
numbers hierarchy now has its own __slots__ declarations.
1167
- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1170
- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1171
function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1173
- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1174
under NT and OS2. Patch by Philip Jenvey.
1176
- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1177
to be recreated. This avoids a timing hole thanks to the old reliance on the
1178
ctime of the files involved.
1180
- Issue #5122: Synchronize tk load failure check to prevent a potential
1183
- Issue #1818: collections.namedtuple() now supports a keyword argument
1184
'rename' which lets invalid fieldnames be automatically converted to
1185
positional names in the form, _1, _2, ...
1187
- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1189
- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1190
public documented method ``ZipImporter.get_filename()``.
1192
- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1193
the execution of packages by looking for and executing a ``__main__``
1194
submodule when a package name is supplied. Initial patch by Andi
1197
- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1198
not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1199
Tkapp_Call when calling from a thread different than the one that created
1200
the Tcl interpreter. Patch by Robert Hancock.
1202
- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1205
- Issue #1520877: Now distutils.sysconfig reads $AR from the
1206
environment/Makefile. Patch by Douglas Greiman.
1208
- Issue #1276768: The verbose option was not used in the code of
1209
distutils.file_util and distutils.dir_util.
1211
- Issue #5132: Fixed trouble building extensions under Solaris with
1212
--enabled-shared activated. Initial patch by Dave Peterson.
1214
- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1216
- The shelve module now defaults to pickle protocol 3.
1218
- Fix a bug in the trace module where a bytes object from co_lnotab had its
1219
items being passed through ord().
1221
- Issue #2047: shutil.move() could believe that its destination path was
1222
inside its source path if it began with the same letters (e.g. "src" vs.
1225
- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1227
- Removed isSequenceType(), isMappingType, and isNumberType() from the
1228
operator module; use the abstract base classes instead. Also removed
1229
the repeat() function; use mul() instead.
1231
- Issue #5021: doctest.testfile() did not create __name__ and
1232
collections.namedtuple() relied on __name__ being defined.
1234
- Backport importlib from Python 3.1. Only the import_module() function has
1235
been backported to help facilitate transitions from 2.7 to 3.1.
1237
- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1238
the tar file was overriden by the gztar one.
1240
- Issue #4863: distutils.mwerkscompiler has been removed.
1242
- Added a new itertools functions: combinations_with_replacement()
1245
- Issue #5032: added a step argument to itertools.count() and
1246
allowed non-integer arguments.
1248
- Fix and properly document the multiprocessing module's logging
1249
support, expose the internal levels and provide proper usage
1252
- Issue #1672332: fix unpickling of subnormal floats, which was
1253
producing a ValueError on some platforms.
1255
- Issue #3881: Help Tcl to load even when started through the
1256
unreadable local symlink to "Program Files" on Vista.
1258
- Issue #4710: Extract directories properly in the zipfile module;
1259
allow adding directories to a zipfile.
1261
- Issue #3807: _multiprocessing build fails when configure is passed
1262
--without-threads argument. When this occurs, _multiprocessing will
1263
be disabled, and not compiled.
1265
- Issue #5008: When a file is opened in append mode with the new IO library,
1266
do an explicit seek to the end of file (so that e.g. tell() returns the
1267
file size rather than 0). This is consistent with the behaviour of the
1268
traditional 2.x file object.
1270
- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1273
- Issue #4842: Always append a trailing 'L' when pickling longs using
1274
pickle protocol 0. When reading, the 'L' is optional.
1276
- Add the importlib package.
1278
- Issue #4301: Patch the logging module to add processName support, remove
1279
_check_logger_class from multiprocessing.
1281
- Issue #3325: Remove python2.x try: except: imports for old cPickle from
1284
- Issue #4959: inspect.formatargspec now works for keyword only arguments
1287
- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1288
for *nix machines for negative handles and large int handles. Without this check
1289
it is possible to segfault the interpreter.
1291
- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1294
- Issue #1225107: inspect.isclass() returned True for instances with a custom
1297
- Issue #3826 and #4791: The socket module now closes the underlying socket
1298
appropriately when it is being used via socket.makefile() objects
1299
rather than delaying the close by waiting for garbage collection to do it.
1301
- Issue #1696199: Add collections.Counter() for rapid and convenient
1304
- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1306
- Issue #4867: Fixed a crash in ctypes when passing a string to a
1307
function without defining argtypes.
1309
- Issue #4272: Add an optional argument to the GzipFile constructor to override
1310
the timestamp in the gzip stream. The default value remains the current time.
1311
The information can be used by e.g. gunzip when decompressing. Patch by
1314
- Restore Python 2.3 compatibility for decimal.py.
1316
- Issue #3638: Remove functions from _tkinter module level that depend on
1317
TkappObject to work with multiple threads.
1319
- Issue #4718: Adapt the wsgiref package so that it actually works with
1320
Python 3.x, in accordance with the `official amendments of the spec
1321
<http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1323
- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1324
to the decimal module.
1326
- Fractions.from_float() no longer loses precision for integers too big to
1329
- Issue #4812: add missing underscore prefix to some internal-use-only
1330
constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1332
- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
1333
did unnecessary work in the common case where no key function was specified.
1335
- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1336
the function is not a generator.
1338
- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1339
no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
1341
- Issue #4646: distutils was choking on empty options arg in the setup
1342
function. Original patch by Thomas Heller.
1344
- Issue #3767: Convert Tk object to string in tkColorChooser.
1346
- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1348
- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1349
the code under test can be written inline if more practical.
1351
- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1352
works as expected in the interactive environment.
1354
- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1357
- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1360
- Issue #4223: inspect.getsource() will now correctly display source code
1361
for packages loaded via zipimport (or any other conformant PEP 302
1362
loader). Original patch by Alexander Belopolsky.
1364
- Issue #4201: pdb can now access and display source code loaded via
1365
zipimport (or any other conformant PEP 302 loader). Original patch by
1366
Alexander Belopolsky.
1368
- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1369
302 conformant loader) will now work correctly in most cases (they
1370
are still subject to the constraints that exist for all code running
1371
from inside a module loaded via a PEP 302 loader and attempting to
1372
perform IO operations based on __file__). Original patch by
1373
Alexander Belopolsky.
1375
- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1376
allows backporting to maintenance branches. Original patch by
1377
Alexander Belopolsky.
1379
- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1382
- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1384
- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1385
codec cannot be found. This is for compatibility with the builtin behavior.
1387
- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1388
give correct results in the case where one argument is a quiet NaN
1389
and the other is a finite number that requires rounding.
1391
- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1394
- Added the subprocess.check_call_output() convenience function to get output
1395
from a subprocess on success or raise an exception on error.
1397
- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1398
support unusual filenames (such as those containing semi-colons) in
1399
Content-Disposition headers.
1401
- Issue #4384: Added logging integration with warnings module using
1402
captureWarnings(). This change includes a NullHandler which does nothing;
1403
it will be of use to library developers who want to avoid the "No handlers
1404
could be found for logger XXX" message which can appear if the library user
1405
doesn't configure logging.
1407
- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1410
- Issue #4529: fix the parser module's validation of try-except-finally
1413
- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1414
not a malformed option.
1416
- Added the subprocess.check_output() convenience function to get output
1417
from a subprocess on success or raise an exception on error.
1419
- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1420
the corresponding tests now pass.
1422
- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1423
it was calling the wrong open() function.
1425
- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1426
support unusual filenames (such as those containing semi-colons) in
1427
Content-Disposition headers.
1429
- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1430
biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1432
- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1433
protocol numbers are supplied outside the allowed 0-65536 range on bind()
1434
and getservbyport().
1436
- Windows locale mapping updated to Vista.
1441
- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1442
and make it 2.6-compatible.
1444
- Ttk demos added in Demo/tkinter/ttk/
1446
- Issue #4677: add two list comprehension tests to pybench.
1452
- Issue #6094: Build correctly with Subversion 1.7.
1454
- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1456
- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1457
linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1459
- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
1460
the order that backends for the dbm extension are checked.
1462
- Link the shared python library with $(MODLIBS).
1464
- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1466
- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1468
- Issue #4895: Use _strdup on Windows CE.
1470
- Issue #4472: "configure --enable-shared" now works on OSX
1472
- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1474
- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1476
- Issue #4289: Remove Cancel button from AdvancedDlg.
1478
- Issue #1656675: Register a drop handler for .py* files on Windows.
1480
- Issue #4120: Exclude manifest from extension modules in VS2008.
1482
- Issue #4091: Install pythonxy.dll in system32 again.
1484
- Issue #4018: Disable "for me" installations on Vista.
1486
- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1488
- Issue #4204: Fixed module build errors on FreeBSD 4.
1491
- Issue #6801 : symmetric_difference_update also accepts |.
1492
Thanks to Carl Chenet.
1497
- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1498
for negative arguments. Previously, it raised TypeError.
1500
- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1502
- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1503
the GIL is released, or owned by another thread.
1505
- Issue #4122: On Windows, fix a compilation error when using the
1506
Py_UNICODE_ISSPACE macro in an extension module.
1512
- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1513
supporting objects as input no matter how it was compiled (built in
1514
implementations or external openssl library).
1516
- Issue #4397: Fix occasional test_socket failure on OS X.
1518
- Issue #4279: Fix build of parsermodule under Cygwin.
1520
- Issue #4751: hashlib now releases the GIL when hashing large buffers
1521
(with a hardwired threshold of 2048 bytes), allowing better parallelization
1522
on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1524
- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1526
- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1527
or decompress several streams at once on multi-CPU systems. Also, the GIL
1528
is now released when computing the CRC of a large buffer. Patch by ebfe.
1530
- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1532
- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1534
- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1537
- Issue #4583: array.array would not always prohibit resizing when a buffer
1538
has been exported, resulting in an interpreter crash when accessing the
1542
- Issue #5228: Make functools.partial objects can now be pickled.
1547
- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1548
Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1549
the same behaviour as test_ttkguionly (and now also test_tk) which is to
1550
skip the tests if DISPLAY is defined but can't be used.
1552
- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
1553
that should cause a test to be skipped are now done using import_module
1554
from test support, which does the conversion.
1556
- Issue #5083: New 'gui' resource for regrtest.
1563
**(For information about older versions, consult the HISTORY file.)**
added
removed
Misc/NEWS~
