blob: 25ef541b2318f3ce5a61c8382775571e2d2b7d18 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Benjamin Peterson8380dd52010-04-16 22:51:37 +000015- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is
16 passed to bytes or bytearray.
17
Philip Jenvey0805ca32010-04-07 04:04:10 +000018- Issue #7301: Add environment variable $PYTHONWARNINGS.
19
Benjamin Petersond856ab62010-04-06 21:55:16 +000020- Issue #8329: Don't return the same lists from select.select when no fds are
21 changed.
22
Mark Dickinson3318d292010-04-06 16:53:17 +000023- Issue #8259: 1L << (2**31) no longer produces an 'outrageous shift error'
24 on 64-bit machines. The shift count for either left or right shift is
25 permitted to be up to sys.maxsize.
26
Benjamin Peterson8daa49e2010-04-03 22:55:48 +000027- Ensure that tokenization of identifiers is not affected by locale.
28
Tarek Ziadé03d788d2010-04-03 08:46:49 +000029- Issue #1222585: Added LDCXXSHARED for C++ support. Patch by Arfrever.
30
Benjamin Peterson80d8fd82010-04-03 01:40:24 +000031- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
32
Victor Stinner00d6a1d2010-03-25 01:02:29 +000033- Issue #8211: Save/restore CFLAGS around AC_PROG_CC in configure.in, compiler
34 optimizations are disabled when --with-pydebug is used.
35
Victor Stinner120c2122010-03-25 00:30:28 +000036- Issue #8226: sys.setfilesystemencoding() raises a LookupError if the encoding
37 is unknown
38
Victor Stinner808fc0a2010-03-22 12:50:40 +000039- Issue #1583863: An str subclass can now override the __str__ method
40
Mark Dickinsond59b4162010-03-13 11:34:40 +000041- Issue #8014: Setting a T_UINT or T_PYSSIZET attribute of an object with
42 PyMemberDefs could produce an internal error; raise TypeError instead.
43
Mark Dickinsonf673f0c2010-03-13 09:48:39 +000044- Issue #7845: Rich comparison methods on the complex type now return
45 NotImplemented rather than raising a TypeError when comparing with an
46 incompatible type; this allows user-defined classes to implement their own
47 comparisons with complex.
48
Victor Stinner52f6dd72010-03-12 14:45:56 +000049- Issue #3137: Don't ignore errors at startup, especially a keyboard interrupt
50 (SIGINT). If an error occurs while importing the site module, the error is
51 printed and Python exits. Initialize the GIL before importing the site
52 module.
53
Benjamin Petersonae5f2f42010-03-07 17:10:51 +000054- Issue #7173: Generator finalization could invalidate sys.exc_info().
55
Victor Stinner45b9be52010-03-03 23:28:07 +000056- Issue #7544: Preallocate thread memory before creating the thread to avoid
57 a fatal error in low memory condition.
58
Victor Stinner6aa278e2010-03-03 00:18:49 +000059- Issue #7820: The parser tokenizer restores all bytes in the right if
60 the BOM check fails.
61
Benjamin Peterson23e018a2010-02-27 17:40:01 +000062- Handle errors from looking up __prepare__ correctly.
63
Larry Hastings1373a072010-02-24 22:49:58 +000064- Issue #5939: Add additional runtime checking to ensure a valid capsule
65 in Modules/_ctypes/callproc.c.
66
Eric Smith0facd772010-02-24 15:42:29 +000067- Issue #7309: Fix unchecked attribute access when converting
68 UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to
69 strings.
70
Eric Smithabb28c62010-02-23 00:22:24 +000071- Issue #6902: Fix problem with built-in types format incorrectly with
72 0 padding.
73
Eric Smith4e260c52010-02-22 18:54:44 +000074- Issue #7988: Fix default alignment to be right aligned for
75 complex.__format__. Now it matches other numeric types.
76
Eric Smith68af50b2010-02-22 14:58:30 +000077- Issue #5988: Remove deprecated functions PyOS_ascii_formatd,
78 PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string
79 and PyOS_string_to_double instead. See issue #5835 for the original
80 deprecations.
81
Antoine Pitrou05b7c562010-02-02 22:47:00 +000082- Issue #7385: Fix a crash in `MemoryView_FromObject` when
83 `PyObject_GetBuffer` fails. Patch by Florent Xicluna.
84
Mark Dickinsonbc099642010-01-29 17:27:24 +000085- Issue #7788: Fix an interpreter crash produced by deleting a list
86 slice with very large step value.
87
Eric Smithf7bb5782010-01-27 00:44:57 +000088- Issue #7766: Change sys.getwindowsversion() return value to a named
89 tuple and add the additional members returned in an OSVERSIONINFOEX
90 structure. The new members are service_pack_major, service_pack_minor,
91 suite_mask, and product_type.
92
Antoine Pitroufc8d6f42010-01-17 12:38:54 +000093- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
94 could crash in many places because of the PyByteArray_AS_STRING() macro
95 returning NULL. The macro now returns a statically allocated empty
96 string instead.
97
Antoine Pitroub7fbcd32010-01-16 18:37:38 +000098- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
99 where the right hand operand is a set of constants, by turning the set into
100 a frozenset and pre-building it as a constant. The comparison operation
101 is made against the constant instead of building a new set each time it is
102 executed (a similar optimization already existed which turned a list of
103 constants into a pre-built tuple). Patch and additional tests by Dave
104 Malcolm.
105
Antoine Pitrouf2c54842010-01-13 08:07:53 +0000106- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
107 methods of bytes, bytearray and unicode objects by using a common
108 implementation based on stringlib's fast search. Patch by Florent Xicluna.
109
Mark Dickinson45b63652010-01-16 18:10:25 +0000110- Issue #7632: Fix various str -> float conversion bugs present in 2.7
111 alpha 2, including: (1) a serious 'wrong output' bug that could
112 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
113 that occurred in debug builds when parsing certain long numeric
Mark Dickinsonc4f18682010-01-17 14:39:12 +0000114 strings corresponding to subnormal values, (3) a memory leak for
115 some values large enough to cause overflow, and (4) a number of
116 flaws that could lead to incorrectly rounded results.
Mark Dickinson81612e82010-01-12 23:04:19 +0000117
Benjamin Petersonaea44282010-01-04 01:10:28 +0000118- The __complex__ method is now looked up on the class of instances to make it
119 consistent with other special methods.
120
Antoine Pitrouda2ecaf2010-01-02 21:40:36 +0000121- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
122 `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
123
Benjamin Petersond12362a2009-12-30 19:44:54 +0000124- Issue #7604: Deleting an unset slotted attribute did not raise an
125 AttributeError.
126
Mark Dickinson9ab44b52009-12-30 16:22:49 +0000127- Issue #7534: Fix handling of IEEE specials (infinities, nans,
128 negative zero) in ** operator. The behaviour now conforms to that
129 described in C99 Annex F.
130
Mark Dickinsoncbb62742009-12-27 15:09:50 +0000131- Issue #1811: improve accuracy and cross-platform consistency for
132 true division of integers: the result of a/b is now correctly
133 rounded for ints a and b (at least on IEEE 754 platforms), and in
134 particular does not depend on the internal representation of an int.
135
Ronald Oussoren6f6c5622009-12-24 14:03:19 +0000136- Issue #6834: replace the implementation for the 'python' and 'pythonw'
137 executables on OSX.
138
139 These executables now work properly with the arch(1) command:
140 ``arch -ppc python`` will start a universal binary version of python
141 in PPC mode (unlike previous releases).
142
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +0000143- Issue #7466: segmentation fault when the garbage collector is called
144 in the middle of populating a tuple. Patch by Florent Xicluna.
145
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +0000146- Issue #7419: setlocale() could crash the interpreter on Windows when called
147 with invalid values.
148
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +0000149- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
150 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
151
Ronald Oussoren3c1928a2009-11-19 17:15:31 +0000152- Issue #7085: Fix crash when importing some extensions in a thread
153 on MacOSX 10.6.
154
Philip Jenvey1309adb2009-11-17 03:43:14 +0000155- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
156
Mark Dickinson6f1d0492009-11-15 13:58:49 +0000157- Issue #6970: Remove redundant calls when comparing objects that don't
158 implement the relevant rich comparison methods.
159
Mark Dickinsond550c9a2009-11-15 09:57:26 +0000160- Issue #7298: fixes for range and reversed(range(...)). Iteration
161 over range(a, b, c) incorrectly gave an empty iterator when a, b and
162 c fit in C long but the length of the range did not. Also fix
163 several cases where reversed(range(a, b, c)) gave wrong results, and
164 fix a refleak for reversed(range(a, b, c)) with large arguments.
165
Raymond Hettingerfc438512009-11-01 20:55:33 +0000166- Issue #7244: itertools.izip_longest() no longer ignores exceptions
167 raised during the formation of an output tuple.
168
Benjamin Petersonb2e796a2009-10-28 21:59:39 +0000169- Issue #3297: On wide unicode builds, do not split unicode characters into
170 surrogates.
171
Mark Dickinsonf9724882009-10-26 21:51:18 +0000172- Remove length limitation when constructing a complex number from a string.
173
Mark Dickinson27a87a22009-10-25 20:43:34 +0000174- Issue #1087418: Boost performance of bitwise operations for longs.
175
Antoine Pitroub6ef9632009-10-24 20:47:05 +0000176- Support for AtheOS has been completely removed from the code base. It was
177 disabled since Python 3.0.
178
179- Support for several legacy threading libraries has been disabled. These
180 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
181 will be entirely removed in 3.3.
182
Raymond Hettingeraf7adad2009-10-22 11:22:50 +0000183- Peephole constant folding had missed UNARY_POSITIVE.
184
Antoine Pitrou011bd622009-10-20 21:52:47 +0000185- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
186 fixes the problem of some exceptions being thrown at shutdown when the
187 interpreter is killed. Patch by Adam Olsen.
188
Antoine Pitrou671141d2009-10-19 19:37:25 +0000189- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +0000190 support.
191
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000192- Issue #7120: logging: Removed import of multiprocessing which is causing
193 crash in GAE.
194
Neil Schemenauere441cb72009-10-14 19:14:38 +0000195- Issue #1754094: Improve the stack depth calculation in the compiler.
196 There should be no other effect than a small decrease in memory use.
197 Patch by Christopher Tur Lesniewski-Laas.
198
Antoine Pitrou403ce782009-10-14 17:14:16 +0000199- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +0000200 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +0000201
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +0000202- Issue #1571184: The Unicode database contains properties for more characters.
203 The tables for code points representing numeric values, white spaces or line
204 breaks are now generated from the official Unicode Character Database files,
205 and include information from the Unihan.txt file.
206
Mark Dickinson2683ab02009-09-29 19:21:35 +0000207- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
208 of producing internally inconsistent Python longs.
209
Philip Jenvey26713ca2009-09-29 04:57:18 +0000210- Issue #6990: Fix threading.local subclasses leaving old state around
211 after a reference cycle GC which could be recycled by new locals.
212
Benjamin Peterson4905e802009-09-27 02:43:28 +0000213- Issue #5460: Fix an ambiguity in the grammar.
214
Mark Dickinson3e124ae2009-09-22 21:47:24 +0000215- Issue #1766304: Improve performance of membership tests on range objects.
216
Mark Dickinson0a1efd02009-09-16 21:23:34 +0000217- Issue #6713: Improve performance of integer -> string conversions.
218
Mark Dickinson54a3db92009-09-06 10:19:23 +0000219- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
220
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +0000221- Issue #6750: A text file opened with io.open() could duplicate its output
222 when writing from multiple threads at the same time.
223
Benjamin Peterson14327712009-08-15 13:23:05 +0000224- Issue #6707: dir() on an uninitialized module caused a crash.
225
Georg Brandl953152f2009-07-22 12:03:59 +0000226- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
227
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000228- Issue #6573: set.union() stopped processing inputs if an instance of self
229 occurred in the argument chain.
230
R. David Murray046f7232009-07-19 02:22:05 +0000231- Issue #6070: On posix platforms import no longer copies the execute bit
232 from the .py file to the .pyc file if it is set.
233
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000234- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
235
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000236- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
237 object, and not an int. Fix the corresponding error message, and the
238 documentation.
239
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000240- The deprecated PyCObject has been removed.
241
Mark Dickinson835a6c82009-06-30 15:45:17 +0000242- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
243 This fixes a build failure on HP-UX: int32_t and uint32_t are
244 defined in inttypes.h instead of stdint.h on that platform.
245
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000246- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000247 the 'surrogateescape' error handler, a string which contains unpaired
248 surrogates.
249
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000250- Issue #4856: Remove checks for win NT.
251
Alexandre Vassalottieb6f8de2009-12-31 03:56:09 +0000252- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its
253 argument to construct a null-initialized bytes object.
254
Alexandre Vassalottic36c3782010-01-09 20:35:09 +0000255- Issue #1023290: Add from_bytes() and to_bytes() methods to integers.
256 These methods allow the conversion of integers to bytes, and vice-versa.
257
Alexandre Vassalotti41f58a72010-01-12 01:23:09 +0000258- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes
259 instances from being copied with copy.copy(), and bytes subclasses
260 from being pickled properly.
261
Collin Winter4222e9c2010-03-18 22:46:40 +0000262- Code objects now support weak references.
263
Ronald Oussoren501aeff2010-04-18 15:02:38 +0000264- Issue #7072: isspace(0xa0) is true on Mac OS X
265
266
Benjamin Peterson466a7822009-07-02 21:44:01 +0000267C-API
268-----
269
Antoine Pitrou8689a102010-04-01 16:53:15 +0000270- Issue #8276: PyEval_CallObject() is now only available in macro form. The
271 function declaration, which was kept for backwards compatibility reasons,
272 is now removed (the macro was introduced in 1997!).
273
Mark Dickinson93f562c2010-01-30 10:30:15 +0000274- Issue #7767: New function PyLong_AsLongLongAndOverflow added,
275 analogous to PyLong_AsLongAndOverflow.
276
Benjamin Peterson8667a9b2010-01-09 21:45:28 +0000277- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
278 has '\0' at the end.
279
Mark Dickinsonde604012010-01-01 19:27:32 +0000280- Issue #5080: The argument parsing functions PyArg_ParseTuple,
281 PyArg_ParseTupleAndKeywords, PyArg_VaParse,
282 PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a
283 DeprecationWarning for float arguments passed with the 'L' format
284 code. This will become a TypeError in a future version of Python,
285 to match the behaviour of the other integer format codes.
286
Georg Brandl1e28a272009-12-28 08:41:01 +0000287- Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added.
288
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000289- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
290 in PyArg_ParseTupleAndKeywords.
291
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000292- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000293 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
294
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000295- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
296 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
297 should used for accessing the d_type and d_name members of structures
298 using PyDescr_COMMON.
299
300- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000301
Benjamin Peterson466a7822009-07-02 21:44:01 +0000302- The code flags for old __future__ features are now available again.
303
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000304- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
305 PyCode_Addr2Line().
306
307- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
308 object at a specified file, function, and line number.
309
310- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
311 ``const char *`` as the string is stored beyond the call.
312
Benjamin Peterson05159c42009-12-03 03:01:27 +0000313- Issue #2422: When compiled with the ``--with-valgrind`` option, the
314 pymalloc allocator will be automatically disabled when running under
315 Valgrind. This gives improved memory leak detection when running
316 under Valgrind, while taking advantage of pymalloc at other times.
317
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000318Library
319-------
320
Tarek Ziadé5340db32010-04-19 22:30:51 +0000321- Issue #1540112: Now allowing the choice of a copy function in
322 shutil.copytree.
323
Giampaolo Rodolà5fb313b2010-04-19 22:05:54 +0000324- Issue #4814: timeout parameter is now applied also for connections resulting
325 from PORT/EPRT commands.
326
Tarek Ziadé10a51af2010-04-19 21:31:42 +0000327- Issue #8463: added missing reference to bztar in shutil's documentation.
328
Ronald Oussoren84151202010-04-18 20:46:11 +0000329- Issue #7154: urllib.request can now detect the proxy settings on OSX 10.6
330 (as long as the user didn't specify 'automatic proxy configuration').
331
Giampaolo Rodolàceb513a2010-04-18 13:36:35 +0000332- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response
333 code as stated in RFC-959 at chapter 5.4.
334
Victor Stinner738446f02010-04-18 00:00:44 +0000335- Issue #8394: _ctypes.dlopen() accepts bytes, bytearray and str with
336 surrogates.
337
Antoine Pitrou0454af92010-04-17 23:51:58 +0000338- Issue #850728: Add a *timeout* parameter to the `acquire()` method of
Antoine Pitroua7ecfe72010-04-17 23:52:21 +0000339 `threading.Semaphore` objects. Original patch by Torsten Landschoff.
Antoine Pitrou0454af92010-04-17 23:51:58 +0000340
Antoine Pitrou2d9cb9c2010-04-17 17:40:45 +0000341- Issue #8322: Add a *ciphers* argument to SSL sockets, so as to change the
342 available cipher list. Helps fix test_ssl with OpenSSL 1.0.0.
343
Victor Stinner0e59cc32010-04-16 23:49:32 +0000344- Issue #8393: subprocess accepts bytes, bytearray and str with surrogates for
345 the current working directory.
346
Victor Stinner5bfe1462010-04-16 13:28:05 +0000347- Issue #7606: XML-RPC traceback stored in X-traceback is now encoded to ASCII
348 using backslashreplace error handler
349
Victor Stinnercfa72782010-04-16 11:45:13 +0000350- Issue #8412: os.system() now accepts bytes, bytearray and str with
351 surrogates.
352
Senthil Kumaranad02d232010-04-16 03:02:13 +0000353- Issue #2987: RFC2732 support for urlparse (IPv6 addresses). Patch by Tony
354 Locke and Hans Ulrich Niedermann.
355
R. David Murrayd48739f2010-04-14 18:59:18 +0000356- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
357
Antoine Pitrou7c3e5772010-04-14 15:44:10 +0000358- Issue #7316: the acquire() method of lock objects in the :mod:`threading`
359 module now takes an optional timeout argument in seconds. Timeout support
360 relies on the system threading library, so as to avoid a semi-busy wait
361 loop.
362
Victor Stinner485fb562010-04-13 11:07:24 +0000363- Issue #8383: pickle and pickletools use surrogatepass error handler when
364 encoding unicode as utf8 to support lone surrogates and stay compatible with
365 Python 2.x and 3.0
366
R. David Murrayb2416e52010-04-12 16:58:02 +0000367- Issue #7585: difflib context and unified diffs now place a tab between
368 filename and date, conforming to the 'standards' they were originally
369 designed to follow. This improves compatibility with patch tools.
370
R. David Murrayef3d6bd2010-04-12 14:48:58 +0000371- Issue #7472: Fixed typo in email.encoders module; messages using ISO-2022
372 character sets will now consistently use a Content-Transfer-Encoding of
373 7bit rather than sometimes being marked as 8bit.
374
Tarek Ziadé46cd93a2010-04-12 08:23:49 +0000375- Issue #8375: test_distutils now checks if the temporary directory are still
376 present before it cleans them.
377
Antoine Pitrou0c70d2d2010-04-11 22:35:34 +0000378- Issue #8374: Update the internal alias table in the :mod:`locale` module
379 to cover recent locale changes and additions.
380
Antoine Pitrou04f6a322010-04-05 21:40:07 +0000381- Issue #8321: Give access to OpenSSL version numbers from the `ssl` module,
382 using the new attributes `ssl.OPENSSL_VERSION`, `ssl.OPENSSL_VERSION_INFO`
383 and `ssl.OPENSSL_VERSION_NUMBER`.
384
Raymond Hettingerc50846a2010-04-05 18:56:31 +0000385- Add functools.total_ordering() and functools.cmp_to_key().
386
Mark Dickinson089b00c2010-04-03 15:51:03 +0000387- Issue #8257: The Decimal construct now accepts a float instance
388 directly, converting that float to a Decimal of equal value:
389
390 >>> Decimal(1.1)
391 Decimal('1.100000000000000088817841970012523233890533447265625')
392
Mark Dickinson98127c32010-04-03 11:18:52 +0000393- Issue #8294: The Fraction constructor now accepts Decimal and float
394 instances directly.
395
Mark Dickinsonac256ab2010-04-03 11:08:14 +0000396- Issue #7279: Comparisons involving a Decimal signaling NaN now
397 signal InvalidOperation instead of returning False. (Comparisons
398 involving a quiet NaN are unchanged.) Also, Decimal quiet NaNs
399 are now hashable; Decimal signaling NaNs remain unhashable.
400
401- Issue #2531: Comparison operations between floats and Decimal
402 instances now return a result based on the numeric values of the
403 operands; previously they returned an arbitrary result based on
404 the relative ordering of id(float) and id(Decimal).
405
Raymond Hettinger9c01e442010-04-03 10:32:58 +0000406- Added a subtract() method to collections.Counter().
407
Barry Warsawd5f9bf52010-03-31 21:36:22 +0000408- Issue #8233: When run as a script, py_compile.py optionally takes a single
409 argument `-` which tells it to read files to compile from stdin. Each line
410 is read on demand and the named file is compiled immediately. (Original
411 patch by Piotr Ożarowski).
412
Florent Xicluna806d8cf2010-03-30 19:34:18 +0000413- Backwards incompatible change: Unicode codepoints line tabulation (0x0B) and
414 form feed (0x0C) are now considered linebreaks, as specified in Unicode
415 Standard Annex #14. See issue #7643.
416 http://www.unicode.org/reports/tr14/
417
Mark Dickinsonab4d63b2010-03-27 11:16:00 +0000418- Comparisons using one of <, <=, >, >= between a complex instance and
419 a Fractions instance now raise TypeError instead of returning
420 True/False. This makes Fraction <=> complex comparisons consistent with
421 int <=> complex, float <=> complex, and complex <=> complex comparisons.
422
Antoine Pitrou39b35432010-03-23 00:25:54 +0000423- Issue #8139: ossaudiodev didn't initialize its types properly, therefore
424 some methods (such as oss_mixer_device.fileno()) were not available.
425 Initial patch by Bertrand Janin.
426
Florent Xiclunafd1b0932010-03-28 00:25:02 +0000427- Issue #8205: Remove the "Modules" directory from sys.path when Python is
428 running from the build directory (POSIX only).
429
Antoine Pitrou910bd512010-03-22 20:11:09 +0000430- Issue #7512: shutil.copystat() could raise an OSError when the filesystem
431 didn't support chflags() (for example ZFS under FreeBSD). The error is
432 now silenced.
433
R. David Murrayca2edce2010-03-22 17:48:48 +0000434- Issue #7860: platform.uname now reports the correct 'machine' type
435 when Python is running in WOW64 mode on 64 bit Windows.
436
Antoine Pitrou3c0fac22010-03-26 19:36:14 +0000437- Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets.
438 Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking
439 reads and writes are always retried by OpenSSL itself.
Antoine Pitrou5733c082010-03-22 14:49:10 +0000440
Victor Stinnere3a1f6d2010-03-22 01:58:35 +0000441- Issue #4282: Fix the main function of the profile module for a non-ASCII
442 script, open the file in binary mode and not in text mode with the default
443 (utf8) encoding.
444
Florent Xicluna54467e02010-03-21 12:29:50 +0000445- Issue #8179: Fix macpath.realpath() on a non-existing path.
446
Florent Xiclunafaa663f2010-03-19 13:37:08 +0000447- Issue #8024: Update the Unicode database to 5.2.
448
Benjamin Peterson00888932010-03-18 22:37:38 +0000449- Issue #8168: py_compile now handles files with utf-8 BOMS.
450
Benjamin Peterson689a5582010-03-18 22:29:52 +0000451- ``tokenize.detect_encoding`` now returns ``'utf-8-sig'`` when a UTF-8 BOM is
452 detected.
453
Martin v. Löwis4b003072010-03-16 13:19:21 +0000454- Issue #6716/2: Backslash-replace error output in compilall.
455
Matthias Klosea6d9abf2010-03-16 10:51:28 +0000456- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
457 with Tcl/Tk-8.5.
458
Matthias Klosec33b9022010-03-16 00:36:26 +0000459- Issue #8140: extend compileall to compile single files. Add -i option.
460
Matthias Klose82f60912010-03-15 13:46:04 +0000461- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of
462 the locale.
463
Gregory P. Smitha31f57c2010-03-14 06:52:18 +0000464- The internals of the subprocess module on POSIX systems have been replaced
465 by an extension module (_posixsubprocess) so that the fork()+exec() can be
466 done safely without the possibility of deadlock in multithreaded applications.
467
Gregory P. Smith580d60c2010-03-14 07:13:25 +0000468- subprocess.Popen now has restore_signals and start_new_session features.
469 The default of restore_signals=True is a new behavior compared to earlier
470 Python versions. This means that signals such as SIGPIPE are not ignored
471 by default in subprocesses launched by Python (Issue #1652).
472
Florent Xiclunaf15351d2010-03-13 23:24:31 +0000473- Issue #6472: The xml.etree package is updated to ElementTree 1.3. The
474 cElementTree module is updated too.
475
Victor Stinnerb33062c2010-03-12 14:27:16 +0000476- Issue #7774: Set sys.executable to an empty string if argv[0] has been set to
477 an non existent program name and Python is unable to retrieve the real
478 program name
479
Florent Xiclunaa4707382010-03-11 00:05:17 +0000480- Issue #7880: Fix sysconfig when the python executable is a symbolic link.
481
Ezio Melottib92ed7c2010-03-06 15:24:08 +0000482- Issue #6509: fix re.sub to work properly when the pattern, the string, and
483 the replacement were all bytes. Patch by Antoine Pitrou.
484
Gerhard Häringf9cee222010-03-05 15:20:03 +0000485- The sqlite3 module was updated to pysqlite 2.6.0. This fixes several obscure
486 bugs and allows loading SQLite extensions from shared libraries.
487
Ezio Melottida227042010-03-14 11:51:00 +0000488- Issue #1054943: Fix ``unicodedata.normalize('NFC', text)`` for the Public
489 Review Issue #29 (http://unicode.org/review/pr-29.html).
Victor Stinner7ed9c4c2010-03-04 12:14:57 +0000490
Victor Stinnercee3ae82010-03-04 00:29:24 +0000491- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
492 reset also the pointer to the current pointer context.
493
Lars Gustäbel01385812010-03-03 12:08:54 +0000494- Issue #7232: Add support for the context manager protocol to the TarFile
495 class.
496
Barry Warsawb1938262010-03-01 21:53:00 +0000497- Issue #7250: Fix info leak of os.environ across multi-run uses of
498 wsgiref.handlers.CGIHandler.
499
Florent Xicluna59250852010-02-27 14:21:57 +0000500- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
501
Florent Xiclunac279ebf2010-02-27 11:31:21 +0000502- Issue #691291: codecs.open() should not convert end of lines on reading and
503 writing.
504
Vinay Sajipdb81c4c2010-02-25 23:13:06 +0000505- Issue #7869: logging: improved diagnostic for format-time errors.
506
507- Issue #7868: logging: added loggerClass attribute to Manager.
508
509- logging: Implemented PEP 391.
510
R. David Murraybe0698b2010-02-23 22:57:58 +0000511- Issue #1537721: Add a writeheader() method to csv.DictWriter.
512
Thomas Heller5117b0b2010-02-23 20:25:02 +0000513- Issue #7959: ctypes callback functions are now registered correctly
Ezio Melotti8b1458b2010-02-24 16:55:43 +0000514 with the cycle garbage collector.
Thomas Heller5117b0b2010-02-23 20:25:02 +0000515
Tarek Ziadé8e615ae2010-02-23 06:00:04 +0000516- Issue #5801: removed spurious empty lines in wsgiref.
517
Andrew M. Kuchlinge1f9beb2010-02-22 22:16:58 +0000518- Issue #6666: fix bug in trace.py that applied the list of directories
519 to be ignored only to the first file. Noted by Bogdan Opanchuk.
520
Andrew M. Kuchlingfbacb062010-02-22 16:52:52 +0000521- Issue #7597: curses.use_env() can now be called before initscr().
522 Noted by Kan-Ru Chen.
523
Ezio Melotti19e4acf2010-02-22 15:59:01 +0000524- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
525
R. David Murray57c45ac2010-02-21 04:39:40 +0000526- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
527 messages parsed by email.Parser.HeaderParser.
528
Brett Cannonef7d6722010-02-19 16:04:36 +0000529- Issue #7361: Importlib was not properly checking the number of bytes in
530 bytecode file when it was less then 8 bytes.
531
Mark Dickinson84230a12010-02-18 14:49:50 +0000532- Issue #7633: In the decimal module, Context class methods (with the
533 exception of canonical and is_canonical) now accept instances of int
534 and long wherever a Decimal instance is accepted, and implicitly
535 convert that argument to Decimal. Previously only some arguments
536 were converted.
537
R. David Murray1f449142010-02-11 00:15:05 +0000538- Issue #7835: shelve should no longer produce mysterious warnings during
539 interpreter shutdown.
540
Antoine Pitrou99f69ee2010-02-09 17:25:47 +0000541- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">")
542 in XML processing instructions and comments. These raw characters are
543 allowed by the XML specification, and are necessary when outputting e.g.
544 PHP code in a processing instruction. Patch by Neil Muller.
545
Antoine Pitrouc77dd322010-02-09 16:51:16 +0000546- Issue #6233: ElementTree failed converting unicode characters to XML
547 entities when they could't be represented in the requested output
548 encoding. Patch by Jerry Chen.
549
Ronald Oussorenee5c8852010-02-07 20:24:02 +0000550- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to
551 specify the compression type.
552
Antoine Pitroub6375f12010-02-04 20:23:24 +0000553- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
554 specified, rather than fall through to AF_PACKET (in the `socket` module).
555 Also, raise ValueError rather than TypeError when an unknown TIPC address
556 type is specified. Patch by Brian Curtin.
557
Antoine Pitrou905a2ff2010-01-31 22:47:27 +0000558- Issue #6939: Fix file I/O objects in the `io` module to keep the original
559 file position when calling `truncate()`. It would previously change the
560 file position to the given argument, which goes against the tradition of
561 ftruncate() and other truncation APIs. Patch by Pascal Chambon.
562
Antoine Pitroua32f9a22010-01-27 21:18:57 +0000563- Issue #7610: Reworked implementation of the internal
564 :class:`zipfile.ZipExtFile` class used to represent files stored inside
565 an archive. The new implementation is significantly faster and can
566 be wrapped in a :class:`io.BufferedReader` object for more speedups.
567 It also solves an issue where interleaved calls to `read()` and
568 `readline()` give wrong results. Patch by Nir Aides.
569
Jesse Noller1f0b6582010-01-27 03:36:01 +0000570- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
571 allowing for a maximum number of tasks within the pool to be completed by
572 the worker before that worker is terminated, and a new one created to
573 replace it.
574
Benjamin Petersond6326642010-01-27 02:25:58 +0000575- Issue #7792: Registering non-classes to ABCs raised an obscure error.
576
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000577- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000578
Ezio Melotti38f00332010-01-25 12:39:47 +0000579- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
580
Benjamin Peterson25001472010-01-25 03:37:42 +0000581- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
582 the release file is empty.
583
Antoine Pitrou1119a642010-01-17 12:16:23 +0000584- Issue #7561: Fix crashes when using bytearray objects with the posix
585 module.
586
R. David Murraya8f480f2010-01-16 18:30:03 +0000587- Issue #1670765: Prevent email.generator.Generator from re-wrapping
588 headers in multipart/signed MIME parts, which fixes one of the sources of
589 invalid modifications to such parts by Generator.
590
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000591- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
592 Patch by Florent Xicluna, along with some additional tests.
593
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000594- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
595 1-byte argument. Patch by Victor Stinner.
596
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000597- Issue #3299: Fix possible crash in the _sre module when given bad
598 argument values in debug mode. Patch by Victor Stinner.
599
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000600- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
601 Patch by Brian Curtin.
602
Benjamin Peterson5efea042010-01-13 03:49:50 +0000603- Issue #7681: Use floor division in appropiate places in the wave module.
604
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000605- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
606 Extension extra options may change the output without changing the .c
607 file). Initial patch by Collin Winter.
608
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000609- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
610 gcc when it has a fully qualified configuration prefix. Initial patch
611 by Arfrever.
612
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000613- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
614 the destruction of weakref'ed objects while iterating.
615
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000616- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
617 Victor Stinner.
618
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000619- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
620 properly handles EINTR within the read, readline, write & flush methods.
621 The socket.sendall() method now properly handles interrupted system calls.
622
Antoine Pitroub1f88352010-01-03 22:37:40 +0000623- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
624 and make it implement the `io.BufferedIOBase` ABC to allow for further
625 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
626
627- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000628 parameter to allow specifying where your connections come from.
629
630- socket.create_connection now accepts an optional source_address parameter.
631
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000632- Issue #5511: now zipfile.ZipFile can be used as a context manager.
633 Initial patch by Brian Curtin.
634
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000635- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
636 MSVC XML Manifest file in text mode so string patterns can be used
637 in regular expressions.
638
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000639- Issue #7552: Removed line feed in the base64 Authorization header in
640 the Distutils upload command to avoid an error when PyPI reads it.
641 This occurs on long passwords. Initial patch by JP St. Pierre.
642
Senthil Kumaran47fff872009-12-20 07:10:31 +0000643- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
644 Tatsuhiro Tsujikawa.
645
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000646- Issue #4757: `zlib.compress` and other methods in the zlib module now
647 raise a TypeError when given an `str` object (rather than a `bytes`-like
648 object). Patch by Victor Stinner and Florent Xicluna.
649
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000650- Issue #7349: Make methods of file objects in the io module accept None as an
651 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
652 the same as passing no argument.
653
Lars Gustäbel365aff32009-12-13 11:42:29 +0000654- Issue #7357: tarfile no longer suppresses fatal extraction errors by
655 default.
656
R. David Murraye8dc2582009-12-10 02:08:06 +0000657- Issue #5949: added check for correct lineends in input from IMAP server
658 in imaplib.
659
Raymond Hettinger44459de2010-04-03 23:20:46 +0000660- Add count() and reverse() methods to collections.deque().
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000661
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000662- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
663
Antoine Pitrou781eba72009-12-08 15:57:31 +0000664- Issue #6986: Fix crash in the JSON C accelerator when called with the
665 wrong parameter types. Patch by Victor Stinner.
666
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000667- Issue #7457: added a read_pkg_file method to
668 distutils.dist.DistributionMetadata.
669
Vinay Sajip540f2152009-12-06 17:57:11 +0000670- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
671 TLS with authentication credentials.
672
Tarek Ziadédf872d42009-12-06 09:28:17 +0000673- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
674 generated in Distutils. Patch by Stephen Emslie.
675
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000676- Issue #4120: Drop reference to CRT from manifest when building extensions with
677 msvc9compiler.
678
Antoine Pitroub7572f02009-12-02 20:46:48 +0000679- Issue #7333: The `posix` module gains an `initgroups()` function providing
680 access to the initgroups(3) C library call on Unix systems which implement
681 it. Patch by Jean-Paul Calderone.
682
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000683- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
684 ownership when the group is not forced, because the group may be different
685 from the user's group and inherit from its container when the test is run.
686
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000687- Issue #4486: When an exception has an explicit cause, do not print its
688 implicit context too. This affects the `traceback` module as well as
689 built-in exception printing.
690
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000691- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
692 Robert Collins.
693
Vinay Sajip03f6c112009-11-27 14:03:36 +0000694- Issue #7403: logging: Fixed possible race condition in lock creation.
695
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000696- Issue #6845: Add restart support for binary upload in ftplib. The
697 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
698 argument. Patch by Pablo Mouzo.
699
Antoine Pitroube6859d2009-11-25 23:02:32 +0000700- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
701 method returning the total number of seconds in the duration. Patch by
702 Brian Quinlan.
703
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000704- Issue #7133: SSL objects now support the new buffer API.
705
Senthil Kumaran758025c2009-11-23 19:02:52 +0000706- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
707
Lars Gustäbel9520a432009-11-22 18:48:49 +0000708- Issue #6123: tarfile now opens empty archives correctly and consistently
709 raises ReadError on empty files.
710
Tarek Ziadé26afd482009-11-19 05:39:00 +0000711- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
712 be 2.
713
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000714- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
715 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000716
Lars Gustäbel7b465392009-11-18 20:29:25 +0000717- Issue #7341: Close the internal file object in the TarFile constructor in
718 case of an error.
719
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000720- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
721 Windows box. Help provided by David Bolen.
722
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000723- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
724 TLS or SSL. Patch by Giampaolo Rodola'.
725
Nick Coghlan106274b2009-11-15 23:04:33 +0000726- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
727
Antoine Pitroub8108e22009-11-15 14:25:16 +0000728- Issue #4969: The mimetypes module now reads the MIME database from
729 the registry under Windows. Patch by Gabriel Genellina.
730
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000731- Issue #6816: runpy now provides a run_path function that allows Python code
732 to execute file paths that refer to source or compiled Python files as well
733 as zipfiles, directories and other valid sys.path entries that contain a
734 __main__.py file. This allows applications that run other Python scripts to
735 support the same flexibility as the CPython command line itself.
736
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000737- Issue #7318: multiprocessing now uses a timeout when it fails to establish
738 a connection with another process, rather than looping endlessly. The
739 default timeout is 20 seconds, which should be amply sufficient for
740 local connections.
741
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000742- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
743 unpickled. This fixes crashes under Windows when trying to run
744 test_multiprocessing in verbose mode.
745
Michael Foord34c94622010-02-10 15:51:42 +0000746- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
747 argument added to the TextTestRunner constructor allowing a different result
748 class to be used without having to subclass.
749
750- Issue 7588: ``unittest.TextTestResult.getDescription`` now includes the test
751 name in failure reports even if the test has a docstring.
752
Antoine Pitrou434736a2009-11-10 18:46:01 +0000753- Issue #3001: Add a C implementation of recursive locks which is used by
754 default when instantiating a `threading.RLock` object. This makes
755 recursive locks as fast as regular non-recursive locks (previously,
756 they were slower by 10x to 15x).
757
Antoine Pitroub0872682009-11-09 16:08:16 +0000758- Issue #7282: Fix a memory leak when an RLock was used in a thread other
759 than those started through `threading.Thread` (for example, using
760 `_thread.start_new_thread()`).
761
Brett Cannone52c9192009-11-07 23:55:05 +0000762- Issue #7187: Importlib would not silence the IOError raised when trying to
763 write new bytecode when it was made read-only.
764
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000765- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
766 which are part of a reference cycle.
767
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000768- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
769 objects on 64-bit systems. Patch by Michael Broghton.
770
Antoine Pitrou03f13442009-11-02 11:36:51 +0000771- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
772 a modification is done through it. This fixes inconsistencies and test
773 failures on systems with slightly bogus mtime behaviour.
774
Gregory P. Smith50467882009-11-01 18:42:17 +0000775- Issue #7246 & Issue #7208: getpass now properly flushes input before
776 reading from stdin so that existing input does not confuse it and
777 lead to incorrect entry or an IOError. It also properly flushes it
778 afterwards to avoid the terminal echoing the input afterwards on
779 OSes such as Solaris.
780
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000781- Issue #7233: Fix a number of two-argument Decimal methods to make
782 sure that they accept an int or long as the second argument. Also
783 fix buggy handling of large arguments (those with coefficient longer
784 than the current precision) in shift and rotate.
785
Lars Gustäbel1440df22009-10-29 09:39:47 +0000786- Issue #4750: Store the basename of the original filename in the gzip FNAME
787 header as required by RFC 1952.
788
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000789- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
790 Distutils.
791
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000792- Issue #7218: Fix test_site for win32, the directory comparison was done with
793 an uppercase.
794
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000795- Issue #7205: Fix a possible deadlock when using a BZ2File object from
796 several threads at once.
797
Vinay Sajip42ead482009-10-21 20:22:14 +0000798- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
799
Mark Dickinson06bb6742009-10-20 13:38:04 +0000800- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
801 larger than emax.
802
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000803- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
804 platforms, and assorted locale fixes by Derk Drukker.
805
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000806- Issue #5833: Fix extra space character in readline completion with the
807 GNU readline library version 6.0.
808
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000809- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000810
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000811- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
812 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000813
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000814- Issue #7082: When falling back to the MIME 'name' parameter, the
815 correct place to look for it is the Content-Type header.
816
Benjamin Petersond3afada2009-10-09 21:43:09 +0000817- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
818 builtin tokenizer.
819
Mark Dickinson56df8872009-10-07 19:23:50 +0000820- Issue #7048: Force Decimal.logb to round its result when that result
821 is too large to fit in the current precision.
822
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000823- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000824 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000825
Thomas Heller69b639f2009-09-18 20:08:39 +0000826- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
827 does now always result in NULL.
828
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000829- Issue #5042: Structure sub-subclass does now initialize correctly
830 with base class positional arguments.
831
Eric Smith81fd8042009-09-18 13:23:13 +0000832- Issue #6882: Import uuid creates zombies processes.
833
Matthias Klosef6b76b02009-09-13 15:18:53 +0000834- Issue #6635: Fix profiler printing usage message.
835
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000836- Issue #6856: Add a filter keyword argument to TarFile.add().
837
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000838- Issue #6888: pdb's alias command was broken when no arguments were given.
839
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000840- Issue #6857: Default format() alignment should be '>' for Decimal
841 instances.
842
Mark Dickinson825fce32009-09-07 18:08:12 +0000843- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
844 returning NaN or raising InvalidContext. Also, fix infinite recursion
845 in long(Decimal('nan')).
846
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000847- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
848 with no type specifier.
849
Thomas Heller8b939522009-09-04 18:24:41 +0000850- Issue #6239: ctypes.c_char_p return value must return bytes.
851
Chris Withers9c33cbf2009-09-04 17:04:16 +0000852- Issue #6838: Use a list to accumulate the value instead of
853 repeatedly concatenating strings in http.client's
854 HTTPResponse._read_chunked providing a significant speed increase
855 when downloading large files servend with a Transfer-Encoding of 'chunked'.
856
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000857- Trying to import a submodule from a module that is not a package, ImportError
858 should be raised, not AttributeError.
859
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000860- When the globals past to importlib.__import__() has __package__ set to None,
861 fall back to computing what __package__ should be instead of giving up.
862
Brett Cannon6afbaef2009-08-30 19:08:58 +0000863- Raise a TypeError when the name of a module to be imported for
864 importlib.__import__ is not a string (was raising an
865 AttributeError before).
866
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000867- Allow the fromlist passed into importlib.__import__ to be any iterable.
868
Brett Cannon4d75fc12009-08-30 03:47:36 +0000869- Have importlib raise ImportError if None is found in sys.modules.
870
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000871- Issue #6054: Do not normalize stored pathnames in tarfile.
872
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000873- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
874 payloads are now ordered by integer value rather than lexicographically.
875
Guilherme Polobcd03df2009-08-18 15:35:57 +0000876- Issue #1356969: Add missing info methods in tix.HList.
877
878- Issue #1522587: New constants and methods for the tix.Grid widget.
879
880- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
881
882- Issue #1119673: Do not override tkinter.Text methods when creating a
883 ScrolledText.
884
Gregory P. Smith01099702009-08-16 18:58:46 +0000885- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
886
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000887- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
888 the xview* and yview* methods.
889
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000890- Issue #6629: Fix a data corruption issue in the new I/O library, which could
891 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
892 "wb+" mode) after having buffered a certain amount of data for reading. This
893 bug was not present in the pure Python implementation.
894
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000895- Issue #6622: Fix "local variable 'secret' referenced before
896 assignment" bug in POP3.apop.
897
Mark Dickinson45f799f2009-08-02 20:08:54 +0000898- Issue #2715: Remove remnants of Carbon.File from binhex module.
899
Mark Dickinson345adc42009-08-02 10:14:23 +0000900- Issue #6595: The Decimal constructor now allows arbitrary Unicode
901 decimal digits in input, as recommended by the standard. Previously
902 it was restricted to accepting [0-9].
903
Jack Diederich36596a32009-07-26 22:23:04 +0000904- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
905 DO/DONT correctly.
906
Senthil Kumaran67305382009-07-26 04:46:00 +0000907- Issue #1424152: Fix for http.client, urllib.request to support SSL while
908 working through proxy. Original patch by Christopher Li, changes made by
909 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000910
Brett Cannon69194272009-07-20 04:23:48 +0000911- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
912 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
913 and PyPycLoader inherit from this class and provide implementations in
914 relation to other methods required by the ABCs.
915
Brett Cannon64ef00f2009-07-20 03:19:18 +0000916- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
917 the documentation said it did even though the code in PyLoader relied on the
918 abstract method required by ResourceLoader.
919
Mark Dickinson85424c92009-07-18 14:41:42 +0000920- Issue #6431: Make Fraction type return NotImplemented when it doesn't
921 know how to handle a comparison without loss of precision. Also add
922 correct handling of infinities and nans for comparisons with float.
923
Antoine Pitrouf3637322009-08-06 21:00:37 +0000924- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000925
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000926- Issue #6358: The exit status of a command started with os.popen() was
927 reported differently than it did with python 2.x.
928
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000929- Issue #6323: The pdb debugger did not exit when running a script with a
930 syntax error.
931
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000932- Issue #3392: The subprocess communicate() method no longer fails in select()
933 when file descriptors are large; communicate() now uses poll() when possible.
934
Antoine Pitrou54923952009-07-01 14:53:06 +0000935- Issue #6369: Fix an RLE decompression bug in the binhex module.
936
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000937- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
938
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000939- The deprecated function string.maketrans has been removed.
940
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000941- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
942 sys.path.
943
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000944- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
945
Gregory P. Smithb6e8c7e2010-02-27 07:22:22 +0000946- The os.get_exec_path() function to return the list of directories that will
947 be searched for an executable when launching a subprocess was added.
948
Gregory P. Smith3fdd9642010-02-28 18:57:46 +0000949- Issue #7481: When a threading.Thread failed to start it would leave the
950 instance stuck in initial state and present in threading.enumerate().
951
Gregory P. Smitha59c59f2010-03-01 00:17:40 +0000952- Issue #1068268: The subprocess module now handles EINTR in internal
953 os.waitpid and os.read system calls where appropriate.
954
Gregory P. Smith1a530912010-03-01 04:59:27 +0000955- Issue #6729: Added ctypes.c_ssize_t to represent ssize_t.
956
Steven Bethard6d265692010-03-02 09:22:57 +0000957- Issue #6247: The argparse module has been added to the standard library.
958
Larry Hastingsf0f37952010-04-02 11:47:10 +0000959- Issue #8235: _socket: Add the constant ``SO_SETFIB``. SO_SETFIB is
960 a socket option available on FreeBSD 7.1 and newer.
961
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000962Extension Modules
963-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000964
Victor Stinnerfebecd82010-04-16 12:07:30 +0000965- Issue #8314: Fix unsigned long long bug in libffi on Sparc v8.
966
Mark Dickinsonc5935772010-04-03 15:54:36 +0000967- Issue #8300: When passing a non-integer argument to struct.pack with any
968 integer format code, struct.pack first attempts to convert the non-integer
969 using its __index__ method. If that method is non-existent or raises
970 TypeError it goes on to try the __int__ method, as described below.
971
Matthias Klosea8349752010-03-15 13:25:28 +0000972- Issue #8142: Update libffi to the 3.0.9 release.
973
Matthias Klose9550aa12010-03-15 12:49:46 +0000974- Issue #6949: Allow the _dbm extension to be built with db 4.8.x.
975
Georg Brandlc0e22b72010-03-14 10:51:01 +0000976- Issue #6544: fix a reference leak in the kqueue implementation's error
977 handling.
978
Martin v. Löwis3afc62e2010-02-18 16:27:43 +0000979- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
980 msvcr100.dll is not a platform assembly anymore.
981
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000982- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
983
Mark Dickinson40714af2009-10-08 15:59:20 +0000984- Issue #7078: Set struct.__doc__ from _struct.__doc__.
985
Mark Dickinson45f992a2009-12-19 11:20:49 +0000986- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000987
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000988- Issue #6877: It is now possible to link the readline extension to the
989 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000990
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000991- Issue #6848: Fix curses module build failure on OS X 10.6.
992
Brett Cannon2f827382009-08-13 19:58:01 +0000993- Fix a segfault that could be triggered by expat with specially formed input.
994
Mark Dickinson1f268282009-07-28 17:22:36 +0000995- Issue #6561: '\d' in a regex now matches only characters with
996 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
997 matched characters with category 'No'.
998
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000999- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +00001000 failing due to the resize restriction in-place when the object has exported
1001 buffers.
1002
Alexandre Vassalottiad077152009-07-15 17:49:23 +00001003- Issue #2389: Array objects are now pickled in a portable manner.
1004
Matthias Klosea50ffe52010-01-22 01:10:19 +00001005- Expat: Fix DoS via XML document with malformed UTF-8 sequences
1006 (CVE_2009_3560).
1007
Gregory P. Smith24cec9f2010-03-01 06:18:41 +00001008- Issue #7242: On Solaris 9 and earlier calling os.fork() from within a
1009 thread could raise an incorrect RuntimeError about not holding the import
1010 lock. The import lock is now reinitialized after fork.
1011
Gregory P. Smithc78d79c2010-03-01 05:54:14 +00001012- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
1013 parameter on some platforms such as OS X.
1014
Martin v. Löwis95c46012009-06-28 09:36:14 +00001015Build
1016-----
1017
Benjamin Petersone6c9d242010-03-30 17:34:47 +00001018- Issue #3326: Build Python without -fno-strict-aliasing when the gcc does not
1019 give false warnings.
1020
Antoine Pitrou7a61ba92010-03-21 19:25:26 +00001021- Issue #1628484: The Makefile doesn't ignore the CFLAGS environment
1022 variable anymore. It also forwards the LDFLAGS settings to the linker
1023 when building a shared library.
1024
Martin v. Löwis09c86af2010-03-16 11:03:13 +00001025- Issue #6716: Quote -x arguments of compileall in MSI installer.
Martin v. Löwis4ad70df2010-03-16 16:19:47 +00001026 Exclude 2to3 tests from compileall.
Martin v. Löwis09c86af2010-03-16 11:03:13 +00001027
Martin v. Löwis19ed3c82010-02-15 21:45:06 +00001028- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
Martin v. Löwis7671efc2010-02-15 08:35:16 +00001029
Mark Dickinsonde508002010-01-17 21:02:55 +00001030- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
1031 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
1032 PyMem_Free instead. Also disable caching of powers of 5.
1033
Benjamin Petersond78735d2010-01-01 16:04:23 +00001034- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
1035
1036- Issue #6943: Use pkg-config to find the libffi headers when the
1037 --with-system-ffi flag is used.
1038
Benjamin Petersonb2d90462009-12-31 03:23:10 +00001039- Issue #7609: Add a --with-system-expat option that causes the system's expat
1040 library to be used for the pyexpat module instead of the one included with
1041 Python.
1042
Benjamin Petersone57d6762009-12-30 03:02:03 +00001043- Issue #7589: Only build the nis module when the correct header files are
1044 found.
1045
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +00001046- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +00001047
Mark Dickinsonf4243f62009-11-15 13:47:27 +00001048- Issue #5792: Extend the short float repr support to x86 systems using
1049 icc or suncc.
1050
Mark Dickinsona25b1312009-10-31 10:18:44 +00001051- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
1052 compiles correctly under gcc on x86-64. This fixes a reported
1053 problem with the --with-tsc build on x86-64.
1054
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +00001055- Issue #6802: Fix build issues on MacOSX 10.6
1056
Guilherme Polo5d377bd2009-08-16 14:44:14 +00001057- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
1058
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +00001059- Issue 4601: 'make install' did not set the appropriate permissions on
1060 directories.
1061
Martin v. Löwis95c46012009-06-28 09:36:14 +00001062- Issue 5390: Add uninstall icon independent of whether file
1063 extensions are installed.
1064
Florent Xicluna3f88c0e2010-03-19 14:40:31 +00001065- Issue #7541: when using ``python-config`` with a framework install the
1066 compiler might use the wrong library.
Ronald Oussoren585c1732009-12-24 14:21:55 +00001067
Collin Winterbf199072010-03-19 21:17:17 +00001068- python-config now supports multiple options on the same command line.
1069
Mark Dickinsond3aa6462009-09-17 00:06:41 +00001070Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +00001071------------
1072
R. David Murraye821cb62010-03-08 17:48:38 +00001073- A small wsgi server was added as Tools/scripts/serve.py, and is used to
1074 implement a local documentation server via 'make serve' in the doc directory.
1075
Barry Warsaw615368f2010-02-05 19:12:30 +00001076- Updating `Using Python` documentation to include description of CPython's
1077 -J and -X options.
1078
Brett Cannon757df6e2009-08-30 04:00:12 +00001079- Document that importing a module that has None in sys.modules triggers an
1080 ImportError.
1081
Tarek Ziadéf3b33222009-08-21 14:22:45 +00001082- Issue #6556: Fixed the Distutils configuration files location explanation
1083 for Windows.
Florent Xiclunaf089fd62010-03-19 14:25:03 +00001084
Matthias Klosec8b16f82010-01-31 16:14:37 +00001085- Update python manual page (options -B, -O0, -s, environment variables
1086 PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
Tarek Ziadéf3b33222009-08-21 14:22:45 +00001087
Brett Cannonb49c70c2009-07-15 04:08:33 +00001088Tests
1089-----
1090
Antoine Pitrou90ee4df2010-04-06 17:23:13 +00001091- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
1092
Antoine Pitrou503ab332010-03-30 18:56:19 +00001093- Issue #8248: Add some tests for the bool type. Patch by Gregory Nofi.
1094
Florent Xiclunad6995eb2010-03-30 19:43:09 +00001095- Issue #8263: Now regrtest.py will report a failure if it receives a
1096 KeyboardInterrupt (SIGINT).
1097
Florent Xiclunafd1b0932010-03-28 00:25:02 +00001098- Issue #8180 and #8207: Fix test_pep277 on OS X and add more tests for special
1099 Unicode normalization cases.
Florent Xiclunaeb136182010-03-21 18:49:50 +00001100
Florent Xicluna3f88c0e2010-03-19 14:40:31 +00001101- Issue #7783: test.support.open_urlresource invalidates the outdated files
1102 from the local cache.
Florent Xiclunaf089fd62010-03-19 14:25:03 +00001103
Florent Xiclunab14930c2010-03-13 15:26:44 +00001104- Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are
1105 effectively raised.
1106
Florent Xiclunac9c79782010-03-08 12:24:53 +00001107- The four path modules (genericpath, macpath, ntpath, posixpath) share a
1108 common TestCase for some tests: test_genericpath.CommonTest.
1109
Florent Xicluna0e62a142010-03-06 17:34:48 +00001110- Print platform information when running the whole test suite, or using
1111 the --verbose flag.
1112
Florent Xicluna683a7e72010-03-03 00:06:37 +00001113- Issue #767675: enable test_pep277 on POSIX platforms with Unicode-friendly
1114 filesystem encoding.
1115
R. David Murray378c0cf2010-02-24 01:46:21 +00001116- Issue #6292: for the moment at least, the test suite runs cleanly if python
1117 is run with the -OO flag. Tests requiring docstrings are skipped.
1118
Ezio Melotti184bdfb2010-02-18 09:37:05 +00001119- Issue #7712: test.support gained a new `temp_cwd` context manager which is
1120 now also used by regrtest to run all the tests in a temporary directory.
1121 The original CWD is saved in `support.SAVEDCWD`.
1122 Thanks to Florent Xicluna who helped with the patch.
1123
Mark Dickinsonedff7af2010-02-13 18:34:53 +00001124- Issue #7924: Fix an intermittent 'XXX undetected error' failure in
1125 test_capi (only seen so far on platforms where the curses module
1126 wasn't built), due to an uncleared exception.
1127
Florent Xicluna3f88c0e2010-03-19 14:40:31 +00001128- Issue #7728: test_timeout was changed to use support.bind_port instead of a
1129 hard coded port.
R. David Murraye9e95932010-02-06 05:00:15 +00001130
R. David Murray445448c2009-12-20 17:28:31 +00001131- Issue #7376: instead of running a self-test (which was failing) when called
1132 with no arguments, doctest.py now gives a usage message.
1133
R. David Murrayef1992b2009-12-16 15:19:27 +00001134- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
1135
R. David Murray596da442009-12-14 23:06:11 +00001136- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +00001137 instead of a hardcoded port number in test_rapid_restart.
1138
R. David Murrayba311052009-12-04 00:09:14 +00001139- Issue #7431: use TESTFN in test_linecache instead of trying to create a
1140 file in the Lib/test directory, which might be read-only for the
1141 user running the tests.
1142
R. David Murray35768ad2009-11-15 00:23:21 +00001143- Issue #7324: add a sanity check to regrtest argument parsing to
1144 catch the case of an option with no handler.
1145
R. David Murray7dc72cc2009-11-14 16:13:02 +00001146- Issue #7312: Add a -F flag to run the selected tests in a loop until
1147 a test fails. Can be combined with -j.
1148
Antoine Pitrou060cee22009-11-13 16:29:04 +00001149- Issue #6551: test_zipimport could import and then destroy some modules of
1150 the encodings package, which would make other tests fail further down
1151 the road because the internally cached encoders and decoders would point
1152 to empty global variables.
1153
Antoine Pitrou941ee882009-11-11 20:59:38 +00001154- Issue #7295: Do not use a hardcoded file name in test_tarfile.
1155
Antoine Pitrou557934f2009-11-06 22:41:14 +00001156- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
1157 primitives such as Lock, RLock, Condition, Event and Semaphore.
1158
Brett Cannoncfed0292009-11-05 01:26:57 +00001159- Issue #7248 (part 2): Use a unique temporary directory for importlib source
1160 tests instead of tempfile.tempdir. This prevents the tests from sharing state
1161 between concurrent executions on the same system.
1162
Brett Cannon0ae45112009-11-05 01:17:22 +00001163- Issue #7248: In importlib.test.source.util a try/finally block did not make
1164 sure that some referenced objects actually were created in the block before
1165 calling methods on the object.
1166
Antoine Pitrou65c9c642009-10-30 17:25:12 +00001167- Issue #7222: Make thread "reaping" more reliable so that reference
1168 leak-chasing test runs give sensible results. The previous method of
1169 reaping threads could return successfully while some Thread objects were
1170 still referenced. This also introduces a new private function:
1171 :func:`_thread._count()`.
1172
R. David Murray27144602009-10-19 15:26:16 +00001173- Issue #7151: fixed regrtest -j so that output to stderr from a test no
1174 longer runs the risk of causing the worker thread to fail.
1175
Antoine Pitrou4de39cd2009-10-10 21:08:31 +00001176- Issue #7055: test___all__ now greedily detects all modules which have an
1177 __all__ attribute, rather than using a hardcoded and incomplete list.
1178
R. David Murray0bc11ae2009-10-18 22:18:17 +00001179- Issue #7058: Added save/restore for things like sys.argv and cwd to
1180 runtest_inner in regrtest, with warnings if the called test modifies them,
1181 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +00001182
Mark Dickinson2e304402009-10-04 18:43:54 +00001183- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
1184
Brett Cannon3c273842009-07-20 00:14:29 +00001185- Fixed tests in importlib.test.source.test_abc_loader that were masking
1186 the proper exceptions that should be raised for missing or improper code
1187 object bytecode.
1188
Brett Cannonb49c70c2009-07-15 04:08:33 +00001189- Removed importlib's custom test discovery code and switched to
1190 unittest.TestLoader.discover().
1191
Antoine Pitroua69ba652010-01-18 21:20:53 +00001192Tools/Demos
1193-----------
1194
1195- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
1196 added to the `Tools/` directory. They were previously living in the
1197 sandbox.
1198
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00001199
Benjamin Peterson01bf2362009-06-13 14:50:22 +00001200What's New in Python 3.1?
1201=========================
1202
1203*Release date: 27-June-2009*
1204
1205Core and Builtins
1206-----------------
1207
Mark Dickinsonad195562009-06-24 19:01:32 +00001208- Issue #6334: Fix bug in range length calculation for ranges with
1209 large arguments.
1210
Raymond Hettinger159eac92009-06-23 20:38:54 +00001211- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
1212 because it wasn't recognized as a sequence).
1213
Benjamin Peterson01bf2362009-06-13 14:50:22 +00001214Library
1215-------
1216
Georg Brandld07ac642009-08-13 07:50:57 +00001217- Issue #6126: Fixed pdb command-line usage.
1218
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001219- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +00001220
Facundo Batista10706e22009-06-19 20:34:30 +00001221- Issue #6274: Fixed possible file descriptors leak in subprocess.py
1222
Benjamin Peterson6a38ced2009-06-14 18:32:19 +00001223- Accessing io.StringIO.buffer now raises an AttributeError instead of
1224 io.UnsupportedOperation.
1225
Vinay Sajip0f6eac22009-06-21 17:46:49 +00001226- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +00001227 (On Unix)
1228
Gregory P. Smithe88749b2009-06-26 08:05:13 +00001229- Issue #1202: zipfile module would cause a struct.error when attempting to
1230 store files with a CRC32 > 2**31-1.
1231
Matthias Kloseab2b7552009-06-22 13:05:52 +00001232Extension Modules
1233-----------------
1234
1235- Issue #5590: Remove unused global variable in pyexpat extension.
1236
Benjamin Peterson01bf2362009-06-13 14:50:22 +00001237
Antoine Pitrou3b1b8072009-05-30 21:01:23 +00001238What's New in Python 3.1 Release Candidate 2?
1239=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +00001240
Benjamin Petersonc7c12282009-06-13 13:15:04 +00001241*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +00001242
1243Core and Builtins
1244-----------------
1245
Raymond Hettinger94f55832009-06-12 18:40:16 +00001246- Fixed SystemError triggered by "range([], 1, -1)".
1247
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +00001248- Issue #5924: On Windows, a large PYTHONPATH environment variable
1249 (more than 255 characters) would be completely ignored.
1250
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +00001251- Issue #4547: When debugging a very large function, it was not always
1252 possible to update the lineno attribute of the current frame.
1253
Antoine Pitrou8e124f32009-05-30 21:41:10 +00001254- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +00001255 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +00001256
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +00001257Library
1258-------
1259
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +00001260- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001261 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +00001262 Popen. Tested under win32 to build the py-postgresql project.
1263
Martin v. Löwis83eacca2009-06-12 17:31:41 +00001264- Issue #6258: Support AMD64 in bdist_msi.
1265
R. David Murray58641de2009-06-12 15:33:19 +00001266- Issue #6195: fixed doctest to no longer try to read 'source' data from
1267 binary files.
1268
Vinay Sajipaffbd872009-06-11 10:11:47 +00001269- Issue #5262: Fixed bug in next rollover time computation in
1270 TimedRotatingFileHandler.
1271
Benjamin Peterson0926ad12009-06-06 18:02:12 +00001272- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
1273 errors property. Additionally, the errors and encoding properties of StringIO
1274 are always None now.
1275
Antoine Pitroud9dfaa92009-06-04 20:32:06 +00001276- Issue #6137: The pickle module now translates module names when loading
1277 or dumping pickles with a 2.x-compatible protocol, in order to make data
1278 sharing and migration easier. This behaviour can be disabled using the
1279 new `fix_imports` optional argument.
1280
Raymond Hettinger40925d22009-06-04 18:32:39 +00001281- Removed the ipaddr module.
1282
Georg Brandlb54d8012009-06-04 09:11:51 +00001283- Issue #3613: base64.{encode,decode}string are now called
1284 base64.{encode,decode}bytes which reflects what type they accept and return.
1285 The old names are still there as deprecated aliases.
1286
Georg Brandl317185a2009-06-04 09:00:56 +00001287- Issue #5767: Remove sgmlop support from xmlrpc.client.
1288
Martin v. Löwis74b7e442009-06-01 04:23:07 +00001289- Issue #6150: Fix test_unicode on wide-unicode builds.
1290
Antoine Pitrouc06de472009-05-30 21:04:26 +00001291- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
1292 parameters.
1293
Martin v. Löwis79b13872009-06-01 04:13:14 +00001294Windows
1295-------
1296
Martin v. Löwisb7a51562009-06-07 17:55:17 +00001297- Issue #6221: Delete test registry key before running the test.
1298
Martin v. Löwis79b13872009-06-01 04:13:14 +00001299- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
1300
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +00001301C-API
1302-----
1303
1304- Issue #5735: Python compiled with --with-pydebug should throw an
1305 ImportError when trying to import modules compiled without
1306 --with-pydebug, and vice-versa.
1307
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +00001308
Brett Cannonc6d936e2009-06-07 20:09:53 +00001309Build
1310-----
1311
1312- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
1313 added LIBS to OS X framework builds.
1314
Ronald Oussoren99aab652009-06-08 21:22:57 +00001315- Issue #5809: Specifying both --enable-framework and --enable-shared is
1316 an error. Configure now explicity tells you about this.
1317
1318
Brett Cannonc6d936e2009-06-07 20:09:53 +00001319
Mark Dickinson4eb88b32009-05-11 16:41:34 +00001320What's New in Python 3.1 release candidate 1?
1321=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001322
Benjamin Petersone6ad3872009-05-30 15:30:16 +00001323*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001324
1325Core and Builtins
1326-----------------
1327
Martin v. Löwis8ed91b22009-05-29 16:22:26 +00001328- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
1329 of the command line.
1330
Martin v. Löwisc15bdef2009-05-29 14:47:46 +00001331- Issue #6012: Add cleanup support to O& argument parsing.
1332
Eric Smith41669ca2009-05-23 14:23:22 +00001333- Issue #6089: Fixed str.format with certain invalid field specifiers
1334 that would raise SystemError.
1335
Raymond Hettinger2bcde142009-05-29 04:52:27 +00001336- Issue #5982: staticmethod and classmethod now expose the wrapped
1337 function with __func__.
1338
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +00001339- Added support for multiple context managers in the same with-statement.
1340 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +00001341
Mark Dickinson6b1e43b2009-05-20 18:41:04 +00001342- Issue #5829: complex("1e500") no longer raises OverflowError. This
1343 makes it consistent with float("1e500") and interpretation of real
1344 and imaginary literals.
1345
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +00001346- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
1347
R. David Murraydd226ea2009-05-13 12:27:21 +00001348- Issue #5994: the marshal module now has docstrings.
1349
Mark Dickinsond1ec8b22009-05-11 15:45:15 +00001350- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
1351 (1) inf and nan strings with trailing whitespace were incorrectly
1352 rejected; (2) parsing of strings representing infinities and nans
1353 was locale aware; and (3) the interpretation of fromhex('-nan')
1354 didn't match that of float('-nan').
1355
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001356Library
1357-------
1358
Martin v. Löwisb6a748b2009-05-29 15:23:17 +00001359- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
1360
R. David Murrayfb123912009-05-28 18:19:00 +00001361- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
1362
R. David Murray1f1b9d32009-05-27 20:56:59 +00001363- Issue #6121: pydoc now ignores leading and trailing spaces in the
1364 argument to the 'help' function.
1365
Georg Brandlfaf41492009-05-26 18:31:11 +00001366- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
1367 arguments for strings with a space in them.
1368
Raymond Hettinger089ba7f2009-05-27 00:38:24 +00001369- collections.namedtuple() was not working with the following field
1370 names: cls, self, tuple, itemgetter, and property.
1371
Benjamin Peterson14a3dd72009-05-25 00:51:58 +00001372- In unittest, using a skipping decorator on a class is now equivalent to
1373 skipping every test on the class. The ClassTestSuite class has been removed.
1374
Martin v. Löwis70ccd162009-05-24 19:47:22 +00001375- Issue #6050: Don't fail extracting a directory from a zipfile if
1376 the directory already exists.
1377
Antoine Pitrou61f77b52009-05-24 15:46:13 +00001378- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
1379 than an int, which makes some operations possible under 64-bit Linux (e.g.
1380 DN_MULTISHOT with F_NOTIFY).
1381
Antoine Pitrou716c4442009-05-23 19:04:03 +00001382- Issue #5761: Add the name of the underlying file to the repr() of various
1383 IO objects.
1384
R. David Murraycaa27b72009-05-23 18:49:56 +00001385- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
1386 by Musashi Tamura, tests by Marcin Bachry.
1387
Antoine Pitrouc3ee1662009-05-23 16:02:33 +00001388- Issue #1983: Fix functions taking or returning a process identifier to use
1389 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
1390 a process identifier type wider than the standard C integer type.
1391
R. David Murray87e20742009-05-23 01:30:26 +00001392- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
1393 Patch by Farhan Ahmad, test by Marcin Bachry.
1394
Antoine Pitrou6e610062009-05-15 17:04:50 +00001395- Issue #2116: Weak references and weak dictionaries now support copy()ing and
1396 deepcopy()ing.
1397
Antoine Pitrouc1d09362009-05-15 12:15:51 +00001398- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
1399
Antoine Pitrou37d1c182009-05-14 21:54:00 +00001400- Issue #5918: Fix a crash in the parser module.
1401
Antoine Pitrou2ca24f02009-05-14 21:30:46 +00001402- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
1403
Antoine Pitroue4501852009-05-14 18:55:55 +00001404- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
1405 library. This means, for example, that opening an UTF-16 text file in
1406 append mode doesn't add a BOM at the end of the file if the file isn't
1407 empty.
1408
R. David Murray74b89242009-05-13 17:33:03 +00001409- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
1410 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
1411 corrects a pydoc regression.
1412
R. David Murray99352742009-05-07 18:24:38 +00001413- Issue 5955: aifc's close method did not close the file it wrapped,
1414 now it does. This also means getfp method now returns the real fp.
1415
Benjamin Peterson932073a2009-05-23 16:14:33 +00001416Installation
1417------------
1418
1419- Issue #6047: fullinstall has been removed because Python 3's executable will
1420 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001421
Ronald Oussorenbe7149e2009-05-26 21:39:08 +00001422- Lib/smtpd.py is no longer installed as a script.
1423
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001424Extension Modules
1425-----------------
1426
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +00001427- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +00001428
Martin v. Löwise23c8682009-05-29 16:01:34 +00001429- Issue #4873: Fix resource leaks in error cases of pwd and grp.
1430
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001431- Issue #6093: Fix off-by-one error in locale.strxfrm.
1432
Benjamin Peterson744af442009-05-23 18:51:49 +00001433- The _functools and _locale modules are now built into the libpython shared
1434 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +00001435
Antoine Pitrou20327222009-05-24 20:39:11 +00001436Build
1437-----
1438
1439- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
1440 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
1441 Clinton Roy.
1442
Brett Cannon1262e7c2009-05-11 01:47:11 +00001443Tests
1444-----
1445
1446- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1447 tests on darwin even when the OS was installed on a case-sensitive
1448 filesystem. Also fixed tests that should not be run when
1449 sys.dont_write_bytecode is true.
1450
1451
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001452What's New in Python 3.1 beta 1?
1453================================
1454
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001455*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001456
1457Core and Builtins
1458-----------------
1459
Mark Dickinson865e01a2009-05-07 16:37:01 +00001460- Issue #5914: Add new C API function PyOS_string_to_double, and
1461 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1462
Eric Smith741191f2009-05-06 13:08:15 +00001463- Issue #3382: float.__format__, complex.__format__, and %-formatting
1464 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1465 affects nan -> NAN and inf -> INF.
1466
Mark Hammond5a607a32009-05-06 08:04:54 +00001467- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1468 in all operations, including splitdrive, split, etc. splitunc() now issues
1469 a PendingDeprecation warning.
1470
Eric Smith63376222009-05-05 14:04:18 +00001471- Issue #5920: For float.__format__, change the behavior with the
1472 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1473 to be like 'g' but with at least one decimal point and with a
1474 default precision of 12. Previously, the behavior the same but with
1475 a default precision of 6. This more closely matches str(), and
1476 reduces surprises when adding alignment flags to the empty
1477 presentation type. This also affects the new complex.__format__ in
1478 the same way.
1479
Martin v. Löwis011e8422009-05-05 04:43:17 +00001480- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1481
R. David Murrayb18500d2009-05-04 22:59:07 +00001482- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1483 shadowed by classtype's, even if it was None. property now
1484 inserts the __doc__ into the subclass instance __dict__.
1485
Antoine Pitrou244651a2009-05-04 18:56:13 +00001486- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1487 sequences. Patch by Nick Barnes and Victor Stinner.
1488
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001489- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001490
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001491- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1492 received a new method, detach(). detach() disconnects the underlying stream
1493 from the buffer or text IO and returns it.
1494
Mark Dickinson33841c32009-05-01 15:37:04 +00001495- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1496 floats with absolute value over 1e50. Also remove length
1497 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1498 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001499
Eric Smith741191f2009-05-06 13:08:15 +00001500- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001501 format(complex(1, 2./3), '.5') now produces a sensible result.
1502
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001503- Issue #5864: Fix empty format code formatting for floats so that it
1504 never gives more than the requested number of significant digits.
1505
Eric Smith6dc46f52009-04-27 20:39:49 +00001506- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1507 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1508
Eric Smithcc32a112009-04-26 21:35:14 +00001509- Issue #5835: Deprecate PyOS_ascii_formatd.
1510
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001511- Issue #4971: Fix titlecase for characters that are their own
1512 titlecase, but not their own uppercase.
1513
Benjamin Peterson193152c2009-04-25 01:08:45 +00001514- Issue #5283: Setting __class__ in __del__ caused a segfault.
1515
Mark Dickinsonad476da2009-04-23 19:14:16 +00001516- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1517 z involves nans, infs or negative zeros.
1518
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001519- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001520
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001521- Issue #1869 (and many duplicates): make round(x, n) correctly
1522 rounded for a float x, by using the decimal <-> binary conversions
1523 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1524 consistently agrees with format(x, '.2f').
1525
Benjamin Petersonae937c02009-04-18 20:54:08 +00001526- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1527 some builtin types.
1528
Eric Smith0923d1d2009-04-16 20:16:10 +00001529- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1530
Eric Smith35e84722009-04-16 20:21:28 +00001531- Issue #5515: str.format() type 'n' combined with commas and leading
1532 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001533
1534- Implement PEP 378, Format Specifier for Thousands Separator, for
1535 floats.
1536
Mark Dickinson3370cce2009-04-17 22:40:53 +00001537- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001538 1e11, not 1e12. This avoids printing 13 significant digits in
1539 situations where only 12 of them are correct. Example problem
1540 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1541 long time.)
1542
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001543- Issue #1580: On most platforms, use a 'short' float repr: for a
1544 finite float x, repr(x) now outputs a string based on the shortest
1545 sequence of decimal digits that rounds to x. Previous behaviour was
1546 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001547 Another minor difference is that the new repr switches to
1548 exponential notation at 1e16 instead of the previous 1e17; this
1549 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001550
1551 There's a new sys attribute sys.float_repr_style, which takes
1552 the value 'short' to indicate that we're using short float repr,
1553 and 'legacy' if the short float repr isn't available for one
1554 reason or another.
1555
1556 The float repr change involves incorporating David Gay's 'perfect
1557 rounding' code into the Python core (it's in Python/dtoa.c). As a
1558 secondary consequence, all string-to-float and float-to-string
1559 conversions (including all float formatting operations) will be
1560 correctly rounded on these platforms.
1561
1562 See issue 1580 discussions for details of platforms for which
1563 this change does not apply.
1564
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001565- Issue #5759: float() didn't call __float__ on str subclasses.
1566
Georg Brandlabc38772009-04-12 15:51:51 +00001567- The string.maketrans() function is deprecated; there is a new static method
1568 maketrans() on the bytes and bytearray classes. This removes confusion about
1569 the types string.maketrans() is supposed to work with, and mirrors the
1570 methods available on the str class.
1571
R. David Murraydc6da8a2009-04-09 22:16:43 +00001572- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1573 its clarity and its speed.
1574
Matthias Klose091c7b12009-04-07 13:24:27 +00001575- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1576 to avoid compiler warnings.
1577
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001578- Issue #3739: The unicode-internal encoder now reports the number of characters
1579 consumed like any other encoder (instead of the number of bytes).
1580
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001581Installation
1582------------
1583
1584- Issue #5756: Install idle and pydoc with a 3 suffix.
1585
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001586Library
1587-------
1588
Martin v. Löwis403117a2009-05-24 19:19:17 +00001589- Issue #5311: bdist_msi can now build packages that do not depend on a
1590 specific Python version.
1591
Raymond Hettingereb816952009-05-29 01:22:18 +00001592- Issue #5150: IDLE's format menu now has an option to strip trailing
1593 whitespace.
1594
Vinay Sajipaffbd872009-06-11 10:11:47 +00001595- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001596 the right type checkings anymore.
1597
Thomas Heller00cfc372009-05-05 19:04:40 +00001598- Issue #4875: On win32, ctypes.util.find_library does no longer
1599 return directories.
1600
Georg Brandl243ad662009-05-05 09:00:19 +00001601- Issue #5142: Add the ability to skip modules while stepping to pdb.
1602
Georg Brandl991f9202009-05-05 08:31:54 +00001603- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1604 looking for files given by a relative filename.
1605
Georg Brandleaa84ef2009-05-05 08:14:33 +00001606- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1607 turtle demos in Demo/turtle.
1608
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001609- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1610 extracting a file to the root directory.
1611
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001612- Issue #5913: os.listdir() should fail for empty path on windows.
1613
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001614- Issue #5084: unpickling now interns the attribute names of pickled objects,
1615 saving memory and avoiding growth in size of subsequent pickles. Proposal
1616 and original patch by Jake McGuire.
1617
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001618- The json module now works exclusively with str and not bytes.
1619
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001620- Issue #3959: The ipaddr module has been added to the standard library.
1621 Contributed by Google.
1622
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001623- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1624 error when a named pipe is encountered, rather than blocking infinitely.
1625
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001626- Issue #5857: tokenize.tokenize() now returns named tuples.
1627
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001628- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1629
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001630- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1631 string is already in normalized form, by performing a quick check beforehand.
1632 Original patch by Rauli Ruohonen.
1633
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001634- Issue #5853: calling a function of the mimetypes module from several threads
1635 at once could hit the recursion limit if the mimetypes database hadn't been
1636 initialized before.
1637
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001638- Issue #5854: Updated __all__ to include some missing names and remove some
1639 names which should not be exported.
1640
Thomas Heller34596a92009-04-24 20:50:00 +00001641- Issue #3102: All global symbols that the _ctypes extension defines
1642 are now prefixed with 'Py' or '_ctypes'.
1643
1644- Issue #5041: ctypes does now allow pickling wide character.
1645
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001646- Issue #5812: For the two-argument form of the Fraction constructor,
1647 Fraction(m, n), m and n are permitted to be arbitrary Rational
1648 instances.
1649
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001650- Issue #5812: Fraction('1e6') is valid: more generally, any string
1651 that's valid for float() is now valid for Fraction(), with the
1652 exception of strings representing NaNs and infinities.
1653
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001654- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1655 bugs. Patch by Brian Quinlan.
1656
R. David Murray9e94ddf2009-04-13 17:06:33 +00001657- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1658 results in a handle_expt_event call, not handle_read_event, and POLLERR
1659 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1660 dispatcher now has an 'ignore_log_types' attribute for suppressing
1661 log messages, which is set to 'warning' by default.
1662
Matthias Klosea3d29e82009-04-07 13:13:10 +00001663- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1664 new arguments introduced in 2.5.
1665
Walter Dörwald1b08b302009-04-25 14:13:56 +00001666- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1667 makeunicodedata.py and regenerated the Unicode database (This fixes
1668 u'\u1d79'.lower() == '\x00').
1669
Matthias Klose535336f2009-04-07 13:49:45 +00001670Extension Modules
1671-----------------
1672
Benjamin Petersone04b6272009-05-04 22:25:21 +00001673- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1674 pwd.
1675
Mark Dickinsonea835e72009-04-19 20:40:33 +00001676- Issue #5463: In struct module, remove deprecated float coercion
1677 for integer type codes: struct.pack('L', 0.3) should now raise
1678 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1679 The version number has been bumped to 0.3.
1680
Matthias Klose535336f2009-04-07 13:49:45 +00001681- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1682 using Berkley-DB.
1683
Nick Coghlan47384702009-04-22 16:13:36 +00001684Tests
1685-----
1686
1687- Issue #5354: New test support function import_fresh_module() makes
1688 it easy to import both normal and optimised versions of modules.
1689 test_heapq and test_warnings have been adjusted to use it, tests for
1690 other modules with both C and Python implementations in the stdlib
1691 can be adjusted to use it over time.
1692
Walter Dörwald4ba80132009-04-25 12:48:43 +00001693- Issue #5837: Certain sequences of calls to set() and unset() for
1694 support.EnvironmentVarGuard objects restored the environment variables
1695 incorrectly on __exit__.
1696
Benjamin Petersonb173f782009-05-05 22:31:58 +00001697C-API
1698-----
1699
1700- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1701
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001702
Benjamin Petersond1735892009-03-07 18:46:21 +00001703What's New in Python 3.1 alpha 2?
1704=================================
1705
Benjamin Peterson88f14352009-04-04 21:06:52 +00001706*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001707
1708Core and Builtins
1709-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001710
Eric Smith1e1d7d22009-04-03 22:25:33 +00001711- Implement PEP 378, Format Specifier for Thousands Separator, for
1712 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001713
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001714- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1715
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001716- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1717 byte, and the 'C' code only accepts a unicode character.
1718
Georg Brandl406b3d82009-04-11 21:24:37 +00001719- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1720 when hitting the recursion limit under certain circumstances.
1721
Brett Cannon0759dd62009-04-01 18:13:07 +00001722- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1723
Georg Brandlab6f2f62009-03-31 04:16:10 +00001724- Fix a segfault when running test_exceptions with coverage, caused by
1725 insufficient checks in accessors of Exception.__context__.
1726
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001727- Issue #5604: non-ASCII characters in module name passed to
1728 imp.find_module() were converted to UTF-8 while the path is
1729 converted to the default filesystem encoding, causing nonsense.
1730
Benjamin Peterson09832742009-03-26 17:15:46 +00001731- Issue #5126: str.isprintable() returned False for space characters.
1732
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001733- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1734 the end sys.path, for compatibility with the system install of Python.
1735
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001736- Issue #4688: Add a heuristic so that tuples and dicts containing only
1737 untrackable objects are not tracked by the garbage collector. This can
1738 reduce the size of collections and therefore the garbage collection overhead
1739 on long-running programs, depending on their particular use of datatypes.
1740
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001741- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1742 improve its performance. Long divisions and remainder operations
1743 are now between 50% and 150% faster.
1744
Mark Dickinsonbd792642009-03-18 20:06:12 +00001745- Issue #4258: Make it possible to use base 2**30 instead of base
1746 2**15 for the internal representation of integers, for performance
1747 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1748 --enable-big-digits option to configure, which overrides the
1749 default. Add sys.int_info structseq to provide information about
1750 the internal format.
1751
Mark Dickinson081dfee2009-03-18 14:47:41 +00001752- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1753 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1754 and sizeof(Py_UNICODE) == 2.
1755
Eric Smith8ec90442009-03-14 12:29:34 +00001756- Issue #5237: Allow auto-numbered fields in str.format(). For
1757 example: '{} {}'.format(1, 2) == '1 2'.
1758
Antoine Pitrou652e7072009-03-13 19:25:20 +00001759- Issue #5392: when a very low recursion limit was set, the interpreter would
1760 abort with a fatal error after the recursion limit was hit twice.
1761
Matthias Klose042f1332009-04-04 14:32:42 +00001762- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1763 short file names.
1764
Benjamin Petersond1735892009-03-07 18:46:21 +00001765Library
1766-------
1767
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001768- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001769 mailbox.MH.get_message().
1770
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001771- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1772 error substitutions from non-strict codec error callbacks in
1773 incrementalencoder and StreamWriter.
1774
Georg Brandl33c28812009-04-01 23:07:29 +00001775- Issue #5656: Fix the coverage reporting when running the test suite with
1776 the -T argument.
1777
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001778- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1779
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001780- Issue #5624: Fix the _winreg module name still used in several modules.
1781
Benjamin Petersona1b49012009-03-31 23:11:32 +00001782- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1783
Jesse Nollera9314042009-03-31 22:36:44 +00001784- Issue #5619: Multiprocessing children disobey the debug flag and causes
1785 popups on windows buildbots. Patch applied to work around this issue.
1786
Jesse Noller32d68c22009-03-31 18:48:42 +00001787- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1788
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001789- Issue #5387: Fixed mmap.move crash by integer overflow.
1790
Jesse Nollerf8d00852009-03-31 03:25:07 +00001791- Issue #5261: Patch multiprocessing's semaphore.c to support context
1792 manager use: "with multiprocessing.Lock()" works now.
1793
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001794- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1795 bytes already but the failure was non-obvious.
1796
Jesse Noller7af4ef82009-03-30 16:47:15 +00001797- Issue #5177: Multiprocessing's SocketListener class now uses
1798 socket.SO_REUSEADDR on all connections so that the user no longer needs
1799 to wait 120 seconds for the socket to expire.
1800
Benjamin Peterson48e24782009-03-29 13:02:52 +00001801- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1802
Antoine Pitrou66994e12009-03-29 00:45:26 +00001803- Issue #1174606: Calling read() without arguments of an unbounded file
1804 (typically /dev/zero under Unix) could crash the interpreter.
1805
Benjamin Peterson59406a92009-03-26 17:10:29 +00001806- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1807 io.BufferedRandom have been deprecated for removal in Python 3.2.
1808
Lars Gustäbel42e00912009-03-22 20:34:29 +00001809- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1810 forever on incomplete input. That caused tarfile.open() to hang when used
1811 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1812 partial bzip2 compressed data.
1813
Mark Dickinson79f52032009-03-17 23:12:51 +00001814- Issue #2110: Add support for thousands separator and 'n' type
1815 specifier to Decimal.__format__
1816
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001817- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1818 '>' alignment characters.
1819
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001820- The error detection code in FileIO.close() could fail to reflect the `errno`
1821 value, and report it as -1 instead.
1822
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001823- Issue #5016: FileIO.seekable() could return False if the file position
1824 was negative when truncated to a C int. Patch by Victor Stinner.
1825
Mark Dickinsonae681df2009-03-21 10:26:31 +00001826Extension Modules
1827-----------------
1828
Benjamin Petersone099b372009-04-04 17:09:35 +00001829- Issue #5391: mmap now deals exclusively with bytes.
1830
Mark Dickinsonae681df2009-03-21 10:26:31 +00001831- Issue #5463: In struct module, remove deprecated overflow wrapping
1832 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001833 struct.error instead of returning b'\xff\xff\xff\xff'. The
1834 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1835 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001836
Benjamin Petersond1735892009-03-07 18:46:21 +00001837
Benjamin Petersona58a6262009-03-07 16:34:40 +00001838What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001839================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001840
Benjamin Petersona58a6262009-03-07 16:34:40 +00001841*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001842
1843Core and Builtins
1844-----------------
1845
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001846- The io module has been reimplemented in C for speed.
1847
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001848- Give dict views an informative __repr__.
1849
Eric Smith5e5c0db2009-02-20 14:25:03 +00001850- Issue #5247: Improve error message when unknown format codes are
1851 used when using str.format() with str, int, and float arguments.
1852
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001853- Issue #5249: time.strftime returned malformed string when format string
1854 contained non ascii character on windows.
1855
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001856- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1857 source has already been decoded into str.
1858
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001859- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1860 rotating the object pointer by 4 bits to the right.
1861
Mark Dickinson87ec0852009-02-09 17:15:59 +00001862- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1863 it now forces its argument to double before testing for infinity.
1864
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001865- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1866 returns a non-number type.
1867
Benjamin Peterson87618552009-02-08 15:00:52 +00001868- Issue #5182: Removed memoryview.__str__.
1869
Mark Dickinsonc008a172009-02-01 13:59:22 +00001870- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1871 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001872 the type definition cmpfunc. The tp_compare slot has been renamed
1873 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001874
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001875- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001876 were suppressing all exceptions. These include list() and bytearray().
1877
Mark Dickinson1124e712009-01-28 21:25:58 +00001878- Issue #4707: round(x, n) now returns an integer if x is an integer.
1879 Previously it returned a float.
1880
Antoine Pitroub52ec782009-01-25 16:34:23 +00001881- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1882 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1883 evaluation loop is compiled with a new dispatch mechanism which gives
1884 speedups of up to 20%, depending on the system, on various benchmarks.
1885
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001886- Issue #4874: Most builtin decoders now reject unicode input.
1887
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001888- Issue #4842: Don't allow trailing 'L' when constructing an integer
1889 from a string.
1890
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001891- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1892
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001893- Issue #4838: When a module is deallocated, free the memory backing the
1894 optional module state data.
1895
Mark Dickinson8055afd2009-01-17 10:04:45 +00001896- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1897 type to (void *).
1898
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001899- Issue #4935: The overflow checking code in the expandtabs() method common
1900 to str, bytes and bytearray could be optimized away by the compiler, letting
1901 the interpreter segfault instead of raising an error.
1902
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001903- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1904 __next__ method.
1905
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001906- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1907 function no longer attempt to call the __long__ slot to convert an object
1908 to an integer. Only the __int__ and __trunc__ slots are examined.
1909
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001910- Issue #4893: Use NT threading on CE.
1911
Martin v. Löwisec59d042009-01-12 07:59:10 +00001912- Issue #4915: Port sysmodule to Windows CE.
1913
Antoine Pitrouab868312009-01-10 15:40:25 +00001914- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1915 common cases are optimized thanks to a dedicated fast path and a moderate
1916 amount of loop unrolling.
1917
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001918- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1919 collecting the oldest generation) so that allocating lots of objects without
1920 destroying them does not show quadratic performance. Based on a proposal by
1921 Martin von Löwis at
1922 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1923
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001924- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001925 having been closed (for instance, a read() call could return some
1926 previously buffered data). Patch by Dmitry Vasiliev.
1927
Antoine Pitrou05608432009-01-09 18:53:14 +00001928- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1929 flag to work properly. Furthermore, when specifying -u, the text stdout
1930 and stderr streams have line-by-line buffering enabled (the default being
1931 to buffer arbitrary chunks of data).
1932
Raymond Hettinger35631532009-01-09 03:58:09 +00001933- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1934 instead of ints (reducing its size from 4 to 8 times thereby reducing
1935 Python's overall memory).
1936
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001937- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1938 an existing .py counterpart, override the co_filename attributes of all
1939 code objects if the original filename is obsolete (which can happen if the
1940 file has been renamed, moved, or if it is accessed through different paths).
1941 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1942
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001943- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1944 one byte. Also fixes the meaning of len() so that it returns the number of
1945 items, rather than the size in bytes.
1946
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001947- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1948
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001949- Issue #4747: When the terminal does not use utf-8, executing a script with
1950 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1951
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001952- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001953 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001954
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001955- Issue #3680: Reference cycles created through a dict, set or deque iterator
1956 did not get collected.
1957
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001958- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1959 where the tp_hash and tp_dict slots are both NULL.
1960
Georg Brandlccc47b62008-12-28 11:44:14 +00001961- Issue #4759: None is now allowed as the first argument of
1962 bytearray.translate(). It was always allowed for bytes.translate().
1963
Skip Montanaro80072cb2008-12-23 03:51:14 +00001964- Added test case to ensure attempts to read from a file opened for writing
1965 fail.
1966
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001967- Issue #3106: Speedup some comparisons (str/str and int/int).
1968
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001969- Issue #2183: Simplify and optimize bytecode for list, dict and set
1970 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1971
Antoine Pitrou621601a2008-12-17 23:18:19 +00001972- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1973 print elapsed times, not only when some objects are uncollectable /
1974 unreachable. Original patch by Neil Schemenauer.
1975
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001976- Issue #3439: Add a bit_length method to int.
1977
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001978- Issue #2173: When getting device encoding, check that return value of
1979 nl_langinfo is not the empty string. This was causing silent build
1980 failures on OS X.
1981
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001982- Issue #4597: Fixed several opcodes that weren't always propagating
1983 exceptions.
1984
1985- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001986 context manager returns a value that cannot be converted to a bool.
1987
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001988- Issue #4445: Replace "sizeof(PyBytesObject)" with
1989 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1990 bytes instances. On a typical machine this saves 3 bytes of memory
1991 (on average) per allocation of a bytes instance.
1992
Christian Heimesa872de52008-12-05 08:26:55 +00001993- Issue #4533: File read operation was dreadfully slow due to a slowly
1994 growing read buffer. Fixed by using the same growth rate algorithm as
1995 Python 2.x.
1996
Antoine Pitrou5504e892008-12-06 21:27:53 +00001997- Issue #4509: Various issues surrounding resize of bytearray objects to
1998 which there are buffer exports (e.g. memoryview instances).
1999
Georg Brandlf9734072008-12-07 15:30:06 +00002000- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
2001 method on file objects with closefd=False. The file descriptor is still
2002 kept open but the file object behaves like a closed file. The ``FileIO``
2003 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00002004
Antoine Pitroubc420402008-12-07 20:14:49 +00002005- Issue #4569: Interpreter crash when mutating a memoryview with an item size
2006 larger than 1.
2007
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00002008- Issue #4748: Lambda generators no longer return a value.
2009
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00002010- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
2011
Walter Dörwaldc1651a02009-05-03 22:55:55 +00002012- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
2013 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
2014 step. This avoids problems with counting UTF-8 bytes that ignores the effect
2015 of using the replace error handler in PyUnicode_DecodeUTF8().
2016
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00002017Library
2018-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00002019
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00002020- Issue #7071: byte-compilation in Distutils is now done with respect to
2021 sys.dont_write_bytecode.
2022
Tarek Ziadé978cca62009-10-24 13:38:27 +00002023- Issue #7066: archive_util.make_archive now restores the cwd if an error is
2024 raised. Initial patch by Ezio Melotti.
2025
Vinay Sajip96d4aa32009-10-16 14:06:44 +00002026- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00002027 Distutils.
2028
Tarek Ziadé31d46072009-09-21 13:55:19 +00002029- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
2030
Tarek Ziadé165581c2009-09-09 08:48:07 +00002031- Issue #6163: Fixed HP-UX runtime library dir options in
2032 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
2033 Michael Haubenwallner.
2034
Tarek Ziadé4a608c02009-08-20 21:28:05 +00002035- Issue #6693: New functions in site.py to get user/global site packages paths.
2036
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00002037- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
2038 opening an empty or very small file.
2039
2040- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00002041 behavior is similar when used with -O.
2042
Benjamin Petersonbed7d042009-07-19 21:01:52 +00002043- unittest has been split up into a package. All old names should still work.
2044
Tarek Ziadéf8926b22009-07-16 16:18:19 +00002045- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
2046 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
2047 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
2048 for the obsolete get_versions() functions.
2049
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00002050- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
2051
2052- Issue #6314: logging: Extra checks on the "level" argument in more places.
2053
2054- Issue #2622: Fixed an ImportError when importing email.messsage from a
2055 standalone application built with py2exe or py2app.
2056
Vinay Sajipd4fabf42009-07-13 11:28:25 +00002057- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00002058
Vinay Sajipd4fabf42009-07-13 11:28:25 +00002059- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00002060 attribute.
2061
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00002062- Issue #6413: Fixed the log level in distutils.dist for announce.
2063
Tarek Ziadée10d6de2009-07-03 08:33:28 +00002064- Issue #6403: Fixed package path usage in build_ext.
2065
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00002066- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
2067 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
2068 descriptor errors
2069
Vinay Sajipd4fabf42009-07-13 11:28:25 +00002070- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00002071 extension in a subdirectory if the extension name had dots.
2072
Vinay Sajipd4fabf42009-07-13 11:28:25 +00002073- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00002074 unixcompiler. Original patch by Sridhar Ratnakumar.
2075
Tarek Ziadé25bd2062009-06-28 21:26:27 +00002076- Issue #6286: Now Distutils upload command is based on urllib2 instead of
2077 httplib, allowing the usage of http_proxy.
2078
Tarek Ziadé5e06a652009-06-16 07:43:42 +00002079- Issue #6287: Added the license field in Distutils documentation.
2080
Tarek Ziadéff543362009-06-11 09:25:41 +00002081- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
2082
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00002083- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
2084 in Makefiles. This prevents compile errors when using syntax like:
2085 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
2086
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00002087- Issue #6131: test_modulefinder leaked when run after test_distutils.
2088 Patch by Hirokazu Yamamoto.
2089
Tarek Ziadé77c8b372009-05-28 13:01:13 +00002090- Issue #6048: Now Distutils uses the tarfile module in archive_util.
2091
Vinay Sajipaffbd872009-06-11 10:11:47 +00002092- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00002093 and tests on pywin32 by Tim Golden.
2094
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00002095- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
2096
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00002097- Issue #6046: Fixed the library extension when distutils build_ext is used
2098 inplace. Initial patch by Roumen Petrov.
2099
Vinay Sajipaffbd872009-06-11 10:11:47 +00002100- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00002101 subcommand.
2102
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00002103- Issue #6022: a test file was created in the current working directory by
2104 test_get_outputs in Distutils.
2105
Tarek Ziadéff0e5002009-05-12 17:14:01 +00002106- Issue #5977: distutils build_ext.get_outputs was not taking into account the
2107 inplace option. Initial patch by kxroberto.
2108
Tarek Ziadé06fbee12009-05-10 10:34:01 +00002109- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
2110 for old-style extensions.
2111
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00002112- Issue #5976: Fixed Distutils test_check_environ.
2113
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00002114- Issue #5941: Distutils build_clib command was not working anymore because
2115 of an incomplete costumization of the archiver command. Added ARFLAGS in the
2116 Makefile besides AR and make Distutils use it. Original patch by David
2117 Cournapeau.
2118
R. David Murrayb507d2e2009-04-29 15:34:32 +00002119- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
2120
Vinay Sajipaffbd872009-06-11 10:11:47 +00002121- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00002122 anymore.
2123
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002124- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00002125 sysconfig.get_config_vars.
2126
Tarek Ziadé23336082009-04-25 12:39:56 +00002127- Issue #4951: Fixed failure in test_httpservers.
2128
Thomas Hellerd3cfe992009-04-24 20:10:24 +00002129- Issue #5795: Fixed test_distutils failure on Debian ppc.
2130
Tarek Ziadé822e1d42009-04-13 12:37:57 +00002131- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
2132
Georg Brandl1f9fa312009-04-27 16:42:58 +00002133- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
2134 a value in SafeConfigParser.
2135
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00002136- Issue #5732: added a new command in Distutils: check.
2137
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002138- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00002139 platforms. Initial patch by Paul Moore.
2140
Tarek Ziadéf6370502009-04-05 22:57:21 +00002141- Issue #5095: Added bdist_msi to the list of bdist supported formats.
2142 Initial fix by Steven Bethard.
2143
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00002144- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
2145 Initial fix by Wayne Davison.
2146
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002147- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00002148
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002149- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00002150
Brett Cannonf47e84c2009-04-01 16:06:01 +00002151- Issue #1665206 (partially): Move imports in cgitb to the top of the module
2152 instead of performing them in functions. Helps prevent import deadlocking in
2153 threads.
2154
R. David Murraye59482e2009-04-01 03:42:00 +00002155- Issue #2522: locale.format now checks its first argument to ensure it has
2156 been passed only one pattern, avoiding mysterious errors where it appeared
2157 that it was failing to do localization.
2158
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00002159- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
2160 Brandl.
2161
Antoine Pitrou350370c2009-03-14 00:13:13 +00002162- Issue #1222: locale.format() bug when the thousands separator is a space
2163 character.
2164
Tarek Ziadé516db942009-03-11 12:52:00 +00002165- Issue #5472: Fixed distutils.test_util tear down. Original patch by
2166 Tim Golden.
2167
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00002168- collections.deque() objects now have a read-only attribute called maxlen.
2169
Guilherme Polof45b4cc2009-03-07 02:19:14 +00002170- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
2171 it is has been populated and properly configured in order to prevent
2172 window flashing.
2173
Guilherme Polo56f5be52009-03-07 01:54:57 +00002174- Issue #4792: Prevent a segfault in _tkinter by using the
2175 guaranteed to be safe interp argument given to the PythonCmd in place of
2176 the Tcl interpreter taken from a PythonCmd_ClientData.
2177
2178- Issue #5193: Guarantee that tkinter.Text.search returns a string.
2179
Tarek Ziadé63b64c02009-03-07 00:51:53 +00002180- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
2181 Original patch by Akira Kitada.
2182
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00002183- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
2184
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00002185- Issue #5385: Fixed mmap crash after resize failure on windows.
2186
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00002187- Issue #5179: Fixed subprocess handle leak on failure on windows.
2188
Raymond Hettinger2d32f632009-03-02 21:24:57 +00002189- PEP 372: Added collections.OrderedDict().
2190
Raymond Hettingera4f52b12009-03-02 22:28:31 +00002191- The _asdict() for method for namedtuples now returns an OrderedDict().
2192
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00002193- configparser now defaults to using an ordered dictionary.
2194
Benjamin Petersone0124bd2009-03-09 21:04:33 +00002195- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
2196 import guess_extension`` was used.
2197
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00002198- Issue #1733986: Fixed mmap crash in accessing elements of second map object
2199 with same tagname but larger size than first map. (Windows)
2200
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00002201- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
2202 overrun.
2203
Tarek Ziadéf0721222009-02-28 10:16:43 +00002204- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
2205 bdist_rpm command.
2206
2207- Issue #5378: added --quiet option to Distutils bdist_rpm command.
2208
Tarek Ziadé38e3d512009-02-27 12:58:56 +00002209- Issue #5052: make Distutils compatible with 2.3 again.
2210
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00002211- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
2212 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00002213
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002214- Issue #5287: Add exception handling around findCaller() call to help out
2215 IronPython.
2216
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00002217- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
2218 The file was resized to wrong size.
2219
2220- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
2221
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002222- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00002223 from the package_data and the data_files metadata.
2224
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002225- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00002226 support.TempdirManager, to avoid writing in the tests directory.
2227
Tarek Ziadé68c50952009-02-13 23:04:17 +00002228- Issue #4524: distutils build_script command failed with --with-suffix=3.
2229 Initial patch by Amaury Forgeot d'Arc.
2230
Tarek Ziadé811d6242009-02-13 22:26:15 +00002231- Issue #2461: added tests for distutils.util
2232
Mark Dickinsonc28ad272009-02-12 17:58:36 +00002233- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
2234 which inherited from numbers.py which did not have __slots__ defined. The
2235 numbers hierarchy now has its own __slots__ declarations.
2236
Antoine Pitroub353c122009-02-11 00:39:14 +00002237- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
2238 encoding.
2239
Thomas Heller465c8022009-02-10 18:59:04 +00002240- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
2241 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
2242
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00002243- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
2244 under NT and OS2. Patch by Philip Jenvey.
2245
Brett Cannonbefb14f2009-02-10 02:10:16 +00002246- Issue #5128: Make compileall properly inspect bytecode to determine if needs
2247 to be recreated. This avoids a timing hole thanks to the old reliance on the
2248 ctime of the files involved.
2249
Guilherme Polob681df42009-02-09 22:33:59 +00002250- Issue #5122: Synchronize tk load failure check to prevent a potential
2251 deadlock.
2252
Benjamin Petersona86f2c02009-02-10 02:41:10 +00002253- Issue #1818: collections.namedtuple() now supports a keyword argument
2254 'rename' which lets invalid fieldnames be automatically converted to
2255 positional names in the form, _1, _2, ...
2256
Guilherme Poloae098992009-02-09 16:44:24 +00002257- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
2258
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00002259- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
2260 public documented method ``ZipImporter.get_filename()``.
2261
Nick Coghlan3f48ae32009-02-08 01:58:26 +00002262- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
2263 the execution of packages by looking for and executing a ``__main__``
2264 submodule when a package name is supplied. Initial patch by Andi
2265 Vajda.
2266
Guilherme Polo491aee22009-02-06 23:16:11 +00002267- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
2268 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
2269 Tkapp_Call when calling from a thread different than the one that created
2270 the Tcl interpreter. Patch by Robert Hancock.
2271
Eric Smith0e5b5622009-02-06 01:32:42 +00002272- Issue #4285: Change sys.version_info to be a named tuple. Patch by
2273 Ross Light.
2274
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002275- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00002276 environment/Makefile. Patch by Douglas Greiman.
2277
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00002278- Issue #1276768: The verbose option was not used in the code of
2279 distutils.file_util and distutils.dir_util.
2280
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002281- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00002282 --enabled-shared activated. Initial patch by Dave Peterson.
2283
Guilherme Polo7f423952009-02-02 21:17:09 +00002284- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
2285
Raymond Hettinger85602262009-02-03 04:19:10 +00002286- The shelve module now defaults to pickle protocol 3.
2287
Brett Cannone61426e2009-01-30 01:31:34 +00002288- Fix a bug in the trace module where a bytes object from co_lnotab had its
2289 items being passed through ord().
2290
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00002291- Issue #2047: shutil.move() could believe that its destination path was
2292 inside its source path if it began with the same letters (e.g. "src" vs.
2293 "src.new").
2294
Guilherme Polo5f238482009-01-28 14:41:10 +00002295- Added the ttk module. See issue #2983: Ttk support for Tkinter.
2296
Raymond Hettinger89e12962009-01-26 02:09:03 +00002297- Removed isSequenceType(), isMappingType, and isNumberType() from the
2298 operator module; use the abstract base classes instead. Also removed
2299 the repeat() function; use mul() instead.
2300
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002301- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00002302 collections.namedtuple() relied on __name__ being defined.
2303
2304- Backport importlib from Python 3.1. Only the import_module() function has
2305 been backported to help facilitate transitions from 2.7 to 3.1.
2306
Tarek Ziadé0302cf52009-01-26 17:23:20 +00002307- Issue #1885: distutils. When running sdist with --formats=tar,gztar
2308 the tar file was overriden by the gztar one.
2309
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00002310- Issue #4863: distutils.mwerkscompiler has been removed.
2311
Raymond Hettingerd07d9392009-01-27 04:20:44 +00002312- Added a new itertools functions: combinations_with_replacement()
2313 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00002314
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002315- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00002316 allowed non-integer arguments.
2317
Jesse Noller41faa542009-01-25 03:45:53 +00002318- Fix and properly document the multiprocessing module's logging
2319 support, expose the internal levels and provide proper usage
2320 examples.
2321
Mark Dickinsoncddcf442009-01-24 21:46:33 +00002322- Issue #1672332: fix unpickling of subnormal floats, which was
2323 producing a ValueError on some platforms.
2324
Martin v. Löwisacbf4612009-01-24 16:19:45 +00002325- Issue #3881: Help Tcl to load even when started through the
2326 unreadable local symlink to "Program Files" on Vista.
2327
Martin v. Löwis59e47792009-01-24 14:10:07 +00002328- Issue #4710: Extract directories properly in the zipfile module;
2329 allow adding directories to a zipfile.
2330
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002331- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00002332 --without-threads argument. When this occurs, _multiprocessing will
2333 be disabled, and not compiled.
2334
Antoine Pitrou08838b62009-01-21 00:55:13 +00002335- Issue #5008: When a file is opened in append mode with the new IO library,
2336 do an explicit seek to the end of file (so that e.g. tell() returns the
2337 file size rather than 0). This is consistent with the behaviour of the
2338 traditional 2.x file object.
2339
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002340- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
2341 parameter was set.
2342
Mark Dickinson8dd05142009-01-20 20:43:58 +00002343- Issue #4842: Always append a trailing 'L' when pickling longs using
2344 pickle protocol 0. When reading, the 'L' is optional.
2345
Brett Cannonafccd632009-01-20 02:21:27 +00002346- Add the importlib package.
2347
Jesse Noller9a0fc972009-01-18 21:12:58 +00002348- Issue #4301: Patch the logging module to add processName support, remove
2349 _check_logger_class from multiprocessing.
2350
Jesse Noller1cbb17a2009-01-18 19:45:18 +00002351- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002352 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00002353
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00002354- Issue #4959: inspect.formatargspec now works for keyword only arguments
2355 without defaults.
2356
Jesse Noller6214edd2009-01-19 16:23:53 +00002357- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
2358 for *nix machines for negative handles and large int handles. Without this check
2359 it is possible to segfault the interpreter.
2360
Jesse Nollerb0516a62009-01-18 03:11:38 +00002361- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
2362 in sharedctypes.py.
2363
2364- Issue #1225107: inspect.isclass() returned True for instances with a custom
2365 __getattr__.
2366
Gregory P. Smithde3369f2009-01-12 04:50:11 +00002367- Issue #3826 and #4791: The socket module now closes the underlying socket
2368 appropriately when it is being used via socket.makefile() objects
2369 rather than delaying the close by waiting for garbage collection to do it.
2370
Raymond Hettingerb8baf632009-01-14 02:20:07 +00002371- Issue #1696199: Add collections.Counter() for rapid and convenient
2372 counting.
2373
Antoine Pitrou308705e2009-01-10 16:22:51 +00002374- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
2375
Thomas Heller5e4e4272009-01-08 09:34:20 +00002376- Issue #4867: Fixed a crash in ctypes when passing a string to a
2377 function without defining argtypes.
2378
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00002379- Issue #4272: Add an optional argument to the GzipFile constructor to override
2380 the timestamp in the gzip stream. The default value remains the current time.
2381 The information can be used by e.g. gunzip when decompressing. Patch by
2382 Jacques Frechet.
2383
Mark Dickinson315a20a2009-01-04 21:34:18 +00002384- Restore Python 2.3 compatibility for decimal.py.
2385
Guilherme Polo3f5f8222009-01-03 22:00:39 +00002386- Issue #3638: Remove functions from _tkinter module level that depend on
2387 TkappObject to work with multiple threads.
2388
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002389- Issue #4718: Adapt the wsgiref package so that it actually works with
2390 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00002391 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
2392
Raymond Hettinger771ed762009-01-03 19:20:32 +00002393- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
2394 to the decimal module.
2395
Georg Brandl3a9b0622009-01-03 22:07:57 +00002396- Fractions.from_float() no longer loses precision for integers too big to
2397 cast as floats.
2398
Mark Dickinsonf9236412009-01-02 23:23:21 +00002399- Issue #4812: add missing underscore prefix to some internal-use-only
2400 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
2401
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002402- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00002403 did unnecessary work in the common case where no key function was specified.
2404
Georg Brandlb1441c72009-01-03 22:33:39 +00002405- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
2406 the function is not a generator.
2407
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002408- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
2409 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00002410
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002411- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00002412 function. Original patch by Thomas Heller.
2413
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00002414- Issue #3767: Convert Tk object to string in tkColorChooser.
2415
Martin v. Löwise354d782008-12-29 16:03:04 +00002416- Issue #3248: Allow placing ScrolledText in a PanedWindow.
2417
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00002418- Issue #4444: Allow assertRaises() to be used as a context handler, so that
2419 the code under test can be written inline if more practical.
2420
Georg Brandldb7b6b92009-01-01 15:53:14 +00002421- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
2422 works as expected in the interactive environment.
2423
Antoine Pitroudb5fe662008-12-27 15:50:40 +00002424- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
2425 Gabriel Genellina.
2426
Antoine Pitrou180a3362008-12-14 16:36:46 +00002427- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
2428 boundary.
2429
Nick Coghlanf088e5e2008-12-14 11:50:48 +00002430- Issue #4223: inspect.getsource() will now correctly display source code
2431 for packages loaded via zipimport (or any other conformant PEP 302
2432 loader). Original patch by Alexander Belopolsky.
2433
2434- Issue #4201: pdb can now access and display source code loaded via
2435 zipimport (or any other conformant PEP 302 loader). Original patch by
2436 Alexander Belopolsky.
2437
2438- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
2439 302 conformant loader) will now work correctly in most cases (they
2440 are still subject to the constraints that exist for all code running
2441 from inside a module loaded via a PEP 302 loader and attempting to
2442 perform IO operations based on __file__). Original patch by
2443 Alexander Belopolsky.
2444
2445- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2446 allows backporting to maintenance branches. Original patch by
2447 Alexander Belopolsky.
2448
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002449- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2450 a non-ASCII letter.
2451
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002452- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2453
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002454- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2455 codec cannot be found. This is for compatibility with the builtin behavior.
2456
Facundo Batista708d5812008-12-11 04:20:07 +00002457- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2458 give correct results in the case where one argument is a quiet NaN
2459 and the other is a finite number that requires rounding.
2460
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002461- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2462 libs.
2463
Georg Brandlf9734072008-12-07 15:30:06 +00002464- Added the subprocess.check_call_output() convenience function to get output
2465 from a subprocess on success or raise an exception on error.
2466
2467- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2468 support unusual filenames (such as those containing semi-colons) in
2469 Content-Disposition headers.
2470
2471- Issue #4384: Added logging integration with warnings module using
2472 captureWarnings(). This change includes a NullHandler which does nothing;
2473 it will be of use to library developers who want to avoid the "No handlers
2474 could be found for logger XXX" message which can appear if the library user
2475 doesn't configure logging.
2476
2477- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2478 exception.
2479
Georg Brandleee31162008-12-07 15:15:22 +00002480- Issue #4529: fix the parser module's validation of try-except-finally
2481 statements.
2482
2483- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2484 not a malformed option.
2485
2486- Added the subprocess.check_output() convenience function to get output
2487 from a subprocess on success or raise an exception on error.
2488
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002489- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2490 the corresponding tests now pass.
2491
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002492- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2493 it was calling the wrong open() function.
2494
Fred Drake9a0a65b2008-12-04 19:24:50 +00002495- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2496 support unusual filenames (such as those containing semi-colons) in
2497 Content-Disposition headers.
2498
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002499- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2500 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2501
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002502- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2503 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2504 and getservbyport().
2505
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002506- Windows locale mapping updated to Vista.
2507
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002508Tools/Demos
2509-----------
2510
Antoine Pitrou8a681222009-02-07 17:13:31 +00002511- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2512 and make it 2.6-compatible.
2513
Guilherme Poloa7d27972009-01-28 16:06:51 +00002514- Ttk demos added in Demo/tkinter/ttk/
2515
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002516- Issue #4677: add two list comprehension tests to pybench.
2517
Georg Brandlb1441c72009-01-03 22:33:39 +00002518
2519Build
2520-----
2521
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002522- Issue #6094: Build correctly with Subversion 1.7.
2523
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002524- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2525
Antoine Pitrou8966c992009-05-01 21:18:27 +00002526- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2527 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2528
Matthias Klose55708cc2009-04-30 08:06:49 +00002529- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002530 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002531
Matthias Klose906785c2009-02-22 23:18:38 +00002532- Link the shared python library with $(MODLIBS).
2533
Martin v. Löwis11f72102009-02-10 13:13:30 +00002534- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2535
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002536- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2537
Martin v. Löwise97637d2009-01-11 09:45:11 +00002538- Issue #4895: Use _strdup on Windows CE.
2539
Georg Brandlb1441c72009-01-03 22:33:39 +00002540- Issue #4472: "configure --enable-shared" now works on OSX
2541
2542- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2543
2544- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2545
2546- Issue #4289: Remove Cancel button from AdvancedDlg.
2547
2548- Issue #1656675: Register a drop handler for .py* files on Windows.
2549
2550- Issue #4120: Exclude manifest from extension modules in VS2008.
2551
2552- Issue #4091: Install pythonxy.dll in system32 again.
2553
2554- Issue #4018: Disable "for me" installations on Vista.
2555
2556- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2557
2558- Issue #4204: Fixed module build errors on FreeBSD 4.
2559
2560
2561C-API
2562-----
2563
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002564- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2565 NUL: Bogus TypeError detail string.
2566
Mark Dickinson21776072009-02-10 16:13:25 +00002567- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2568 for negative arguments. Previously, it raised TypeError.
2569
Georg Brandlb1441c72009-01-03 22:33:39 +00002570- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2571
2572- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2573 the GIL is released, or owned by another thread.
2574
2575- Issue #4122: On Windows, fix a compilation error when using the
2576 Py_UNICODE_ISSPACE macro in an extension module.
2577
2578
Mark Dickinsone675f082008-12-11 21:56:00 +00002579Extension Modules
2580-----------------
2581
Gregory P. Smith365a1862009-02-12 07:35:29 +00002582- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2583 supporting objects as input no matter how it was compiled (built in
2584 implementations or external openssl library).
2585
Mark Dickinson29500f62009-01-15 15:36:10 +00002586- Issue #4397: Fix occasional test_socket failure on OS X.
2587
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002588- Issue #4279: Fix build of parsermodule under Cygwin.
2589
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002590- Issue #4751: hashlib now releases the GIL when hashing large buffers
2591 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2592 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2593
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002594- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2595
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002596- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2597 or decompress several streams at once on multi-CPU systems. Also, the GIL
2598 is now released when computing the CRC of a large buffer. Patch by ebfe.
2599
Georg Brandlb1441c72009-01-03 22:33:39 +00002600- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2601
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002602- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2603
Mark Dickinsone675f082008-12-11 21:56:00 +00002604- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2605 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002606
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002607- Issue #4583: array.array would not always prohibit resizing when a buffer
2608 has been exported, resulting in an interpreter crash when accessing the
2609 buffer.
2610
Martin v. Löwis841edad2008-11-30 10:36:49 +00002611
Jack Diederiche0cbd692009-04-01 04:27:09 +00002612- Issue #5228: Make functools.partial objects can now be pickled.
2613
Guilherme Polo9de29af2009-01-28 20:40:48 +00002614Tests
2615-----
2616
Antoine Pitrou88909542009-06-29 13:54:42 +00002617- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2618 regression tests in parallel, shortening the total runtime.
2619
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002620- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2621 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2622 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2623 skip the tests if DISPLAY is defined but can't be used.
2624
R. David Murraya21e4ca2009-03-31 23:16:50 +00002625- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002626 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002627 from test support, which does the conversion.
2628
Guilherme Polo9de29af2009-01-28 20:40:48 +00002629- Issue #5083: New 'gui' resource for regrtest.
2630
2631
Brett Cannon7317c1e2008-11-25 19:19:17 +00002632Docs
2633----
2634
Georg Brandl52b92cc2008-05-25 09:43:03 +00002635
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002636**(For information about older versions, consult the HISTORY file.)**