blob: 87e1b2e76524b0202f9cae7fb6300d35470e7ebd [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
Antoine Pitroue1947be2010-03-21 19:27:27 +00007What's New in Python 3.1.3?
8===========================
9
10*Release date: 20XX-XX-XX*
11
Victor Stinnerabdb21a2010-03-22 12:53:14 +000012Core and Builtins
13-----------------
14
Victor Stinner32366b42010-04-23 12:04:53 +000015- Issue #8124: PySys_WriteStdout() and PySys_WriteStderr() don't execute
16 indirectly Python signal handlers anymore because mywrite() ignores
17 exceptions (KeyboardInterrupt)
18
Victor Stinner158701d2010-04-22 19:41:01 +000019- Issue #8092: Fix PyUnicode_EncodeUTF8() to support error handler producing
20 unicode string (eg. backslashreplace)
21
Mark Dickinsonbee1fb02010-04-06 15:44:57 +000022- Issue #8014: Setting a T_UINT or T_PYSSIZET attribute of an object with
23 PyMemberDefs could produce an internal error; raise TypeError instead.
24
Benjamin Peterson0ff8a502010-04-16 23:19:11 +000025- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is
26 passed to bytes or bytearray.
27
Benjamin Petersondee67952010-04-06 21:59:20 +000028- Issue #8329: Don't return the same lists from select.select when no fds are
29 changed.
30
Benjamin Petersonbde0c9d2010-04-03 01:46:38 +000031- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
32
Victor Stinnerd8805b22010-03-25 00:35:51 +000033- Issue #8226: sys.setfilesystemencoding() raises a LookupError if the encoding
34 is unknown
35
Victor Stinnerabdb21a2010-03-22 12:53:14 +000036- Issue #1583863: An str subclass can now override the __str__ method
37
Ronald Oussoren3a20d052010-04-18 15:08:43 +000038- Issue #7072: isspace(0xa0) is true on Mac OS X
39
Martin v. Löwise96ac3a2010-03-21 22:02:42 +000040Library
41-------
42
Antoine Pitrou4b3fe142010-05-07 17:08:54 +000043- Issue #8571: Fix an internal error when compressing or decompressing a
44 chunk larger than 1GB with the zlib module's compressor and decompressor
45 objects.
46
Giampaolo Rodolàc2f1dca2010-05-06 18:37:34 +000047- Issue #8573: asyncore _strerror() function might throw ValueError.
48
49- Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing
50 error messages when accessing undefined class attributes because of the cheap
51 inheritance with the underlying socket object.
52
R. David Murrayf870d872010-05-06 01:53:03 +000053- Issue #7472: Fixed typo in email.encoders module; messages using ISO-2022
54 character sets will now consistently use a Content-Transfer-Encoding of
55 7bit rather than sometimes being marked as 8bit.
56
Tarek Ziadé96239802010-05-05 22:39:31 +000057- Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills.
58 Patch by Tres Seaver.
59
Ronald Oussorenc51527d2010-05-05 15:33:55 +000060- Issue #8621: uuid.uuid4() returned the same sequence of values in the
61 parent and any children created using ``os.fork`` on MacOS X 10.6.
62
Mark Dickinsonece06972010-05-04 14:37:14 +000063- Issue #8567: Fix precedence of signals in Decimal module: when a
64 Decimal operation raises multiple signals and more than one of those
65 signals is trapped, the specification determines the order in which
66 the signals should be handled. In many cases this order wasn't
67 being followed, leading to the wrong Python exception being raised.
68
Antoine Pitroufaf90072010-05-03 16:58:19 +000069- Issue #7865: The close() method of :mod:`io` objects should not swallow
70 exceptions raised by the implicit flush(). Also ensure that calling
71 close() several times is supported. Patch by Pascal Chambon.
72
Antoine Pitrou336e54f2010-05-02 20:06:54 +000073- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
74 gc.DEBUG_STATS.
75
Jean-Paul Calderone9c39bc72010-05-09 03:25:16 +000076- Issue #8354: The siginterrupt setting is now preserved for all signals,
77 not just SIGCHLD.
78
Lars Gustäbelf7317f92010-04-29 15:42:25 +000079- Issue #8464: tarfile no longer creates files with execute permissions set
80 when mode="w|" is used.
81
Antoine Pitrou72867d62010-04-29 10:18:33 +000082- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions
83 of the Linux kernel. Patch by Yaniv Aknin.
84
Senthil Kumaran26826382010-04-28 17:44:30 +000085- Issue #6312: Fixed http HEAD request when the transfer encoding is chunked.
86 It should correctly return an empty response now.
87
Antoine Pitrou79ac78a2010-04-27 19:18:34 +000088- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by
89 Sridhar Ratnakumar.
90
Victor Stinnera27dcb72010-04-25 22:39:07 +000091- Issue #8391: os.execvpe() and os.getenv() supports unicode with surrogates
92 and bytes strings for environment keys and values, and use
93 sys.getfilesystemencoding() instead of sys.getdefautltencoding()
94
Antoine Pitroue3123912010-04-25 22:26:08 +000095- Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown,
96 where the method could block indefinitely if called just before the
97 event loop started running. This also fixes the occasional freezes
98 witnessed in test_httpservers.
99
Antoine Pitrouc2203f92010-04-24 22:07:51 +0000100- Issue #8524: When creating an SSL socket, the timeout value of the
101 original socket wasn't retained (instead, a socket with a positive timeout
102 would be turned into a non-blocking SSL socket).
103
Antoine Pitrouec146182010-04-24 21:30:20 +0000104- Issue #5103: SSL handshake would ignore the socket timeout and block
105 indefinitely if the other end didn't respond.
106
107- The do_handshake() method of SSL objects now adjusts the blocking mode of
108 the SSL structure if necessary (as other methods already do).
109
Antoine Pitrou5a1c4d12010-04-23 21:11:10 +0000110- Issue #8108: Fix the unwrap() method of SSL objects when the socket has
111 a non-infinite timeout. Also make that method friendlier with applications
112 wanting to continue using the socket in clear-text mode, by disabling
113 OpenSSL's internal readahead. Thanks to Darryl Miles for guidance.
114
Victor Stinner95503232010-04-23 11:19:05 +0000115- Issue #8468: bz2.BZ2File() accepts str with surrogates and bytes filenames
116
Antoine Pitrouf9433fe2010-04-22 13:56:42 +0000117- Issue #8496: make mailcap.lookup() always return a list, rather than an
118 iterator. Patch by Gregory Nofi.
119
Victor Stinner9b057002010-04-22 11:24:50 +0000120- Issue #8195: Fix a crash in sqlite Connection.create_collation() if the
121 collation name contains a surrogate character.
122
Antoine Pitrouda6902c2010-04-21 19:52:52 +0000123- Issue #8484: Load all ciphers and digest algorithms when initializing
124 the _ssl extension, such that verification of some SSL certificates
125 doesn't fail because of an "unknown algorithm".
126
Giampaolo Rodolàf5279402010-04-19 22:10:56 +0000127- Issue #4814: timeout parameter is now applied also for connections resulting
128 from PORT/EPRT commands.
129
Giampaolo Rodolà22357e12010-04-18 13:23:21 +0000130- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response
131 code as stated in RFC-959 at chapter 5.4.
132
Victor Stinnerba1f4492010-04-18 00:03:40 +0000133- Issue #8394: _ctypes.dlopen() accepts bytes, bytearray and str with
134 surrogates.
135
Victor Stinnerf45c3682010-04-16 15:48:19 +0000136- Issue #7606: XML-RPC traceback stored in X-traceback is now encoded to ASCII
137 using backslashreplace error handler
138
R. David Murray84ee3102010-04-14 19:05:38 +0000139- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
140
Victor Stinnerf7351b42010-04-13 11:09:22 +0000141- Issue #8383: pickle and pickletools use surrogatepass error handler when
142 encoding unicode as utf8 to support lone surrogates and stay compatible with
143 Python 2.x and 3.0
144
Florent Xicluna9b0e9182010-03-28 11:42:38 +0000145- Issue #8179: Fix macpath.realpath() on a non-existing path.
146
Antoine Pitrou9004edd2010-03-23 00:28:26 +0000147- Issue #8139: ossaudiodev didn't initialize its types properly, therefore
148 some methods (such as oss_mixer_device.fileno()) were not available.
149 Initial patch by Bertrand Janin.
150
Antoine Pitrou9f274b12010-03-22 20:12:40 +0000151- Issue #7512: shutil.copystat() could raise an OSError when the filesystem
152 didn't support chflags() (for example ZFS under FreeBSD). The error is
153 now silenced.
154
Antoine Pitroued6c8932010-03-26 19:38:11 +0000155- Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets.
156 Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking
157 reads and writes are always retried by OpenSSL itself.
Antoine Pitroua06bfd82010-03-22 15:09:31 +0000158
Martin v. Löwise96ac3a2010-03-21 22:02:42 +0000159- Issue #6716/2: Backslash-replace error output in compilall.
160
Antoine Pitroue1947be2010-03-21 19:27:27 +0000161Build
162-----
163
Jesus Cea0f752ee2010-04-28 12:03:06 +0000164- Issue #3928: os.mknod() now available in Solaris, also.
165
Martin v. Löwise96ac3a2010-03-21 22:02:42 +0000166- Issue #6716: Quote -x arguments of compileall in MSI installer.
167 Exclude 2to3 tests from compileall.
168
Antoine Pitroue1947be2010-03-21 19:27:27 +0000169- Issue #1628484: The Makefile doesn't ignore the CFLAGS environment
170 variable anymore. It also forwards the LDFLAGS settings to the linker
171 when building a shared library.
172
Antoine Pitroue96bf092010-04-06 17:25:56 +0000173Tests
174-----
175
Antoine Pitrou452a5802010-05-06 13:54:43 +0000176- Issue #8629: Disable some test_ssl tests, since they give different
177 results with OpenSSL 1.0.0 and higher.
178
Victor Stinnere7bb7812010-05-03 08:35:56 +0000179- Issue #8533: regrtest uses backslashreplace error handler for stdout to avoid
180 UnicodeEncodeError (write non-ASCII character to stdout using ASCII encoding)
181
Antoine Pitroua751c3f2010-04-30 23:23:38 +0000182- Issue #8576: Remove use of find_unused_port() in test_smtplib and
183 test_multiprocessing. Patch by Paul Moore.
184
Victor Stinner8c271b02010-04-25 23:09:27 +0000185- Issue #8531: Skip test_ascii_formatd if ctypes module is missing
186
R. David Murray44546f82010-04-21 01:59:28 +0000187- Issue #3864: Skip three test_signal tests on freebsd6 because they fail
188 if any thread was previously started, most likely due to a platform bug.
189
Antoine Pitroue96bf092010-04-06 17:25:56 +0000190- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
191
Antoine Pitroue1947be2010-03-21 19:27:27 +0000192
Benjamin Peterson83b32fd2010-03-06 22:45:53 +0000193What's New in Python 3.1.2?
194===========================
195
Benjamin Petersonf0fa1b22010-03-20 20:47:27 +0000196*Release date: 2010-03-20*
Benjamin Peterson83b32fd2010-03-06 22:45:53 +0000197
198Core and Builtins
199-----------------
200
Benjamin Petersond01444d2010-03-07 17:14:15 +0000201- Issue #7173: Generator finalization could invalidate sys.exc_info().
202
Benjamin Peterson83b32fd2010-03-06 22:45:53 +0000203Library
204-------
205
Tarek Ziadé7c4afcb2010-03-19 21:56:34 +0000206- Issue #2698: The --compiler ignored was ignored for distutils' build_ext.
207
Matthias Klosee1609b72010-03-16 10:53:02 +0000208- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
209 with Tcl/Tk-8.5.
210
Matthias Kloseffb53842010-03-15 13:51:00 +0000211- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of
212 the locale.
213
Benjamin Peterson83b32fd2010-03-06 22:45:53 +0000214
Benjamin Petersone4b56d22010-03-06 20:28:33 +0000215What's New in Python 3.1.2 release candidate 1?
216===============================================
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000217
Benjamin Petersone4b56d22010-03-06 20:28:33 +0000218*Release date: 2010-03-06*
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000219
220Core and Builtins
221-----------------
222
Victor Stinneref32bc82010-03-03 23:32:07 +0000223- Issue #7544: Preallocate thread memory before creating the thread to avoid
224 a fatal error in low memory condition.
225
Victor Stinner151205f2010-03-03 00:22:21 +0000226- Issue #7820: The parser tokenizer restores all bytes in the right if
227 the BOM check fails.
228
Benjamin Peterson1ca73ed2010-02-27 17:56:22 +0000229- Handle errors from looking up __prepare__ correctly.
230
Larry Hastingse5fd21f2010-02-24 22:58:18 +0000231- Issue #5939: Add additional runtime checking to ensure a valid capsule
232 in Modules/_ctypes/callproc.c.
233
Eric Smithf2387da2010-02-24 15:53:54 +0000234- Issue #7309: Fix unchecked attribute access when converting
235 UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to
236 strings.
237
Eric Smith53f2f2e2010-02-23 00:37:54 +0000238- Issue #6902: Fix problem with built-in types format incorrectly with
239 0 padding.
240
Eric Smith903fc052010-02-22 19:26:06 +0000241- Issue #7988: Fix default alignment to be right aligned for
242 complex.__format__. Now it matches other numeric types.
243
Antoine Pitrou93368182010-02-02 22:51:34 +0000244- Issue #7385: Fix a crash in `MemoryView_FromObject` when
245 `PyObject_GetBuffer` fails. Patch by Florent Xicluna.
246
Mark Dickinsona53f2c92010-01-29 17:29:21 +0000247- Issue #7788: Fix an interpreter crash produced by deleting a list
248 slice with very large step value.
249
Antoine Pitrou20d6c152010-01-17 12:43:00 +0000250- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
251 could crash in many places because of the PyByteArray_AS_STRING() macro
252 returning NULL. The macro now returns a statically allocated empty
253 string instead.
254
Mark Dickinson11f65782010-01-16 18:12:46 +0000255- Issue #7632: Fix various str -> float conversion bugs present in 2.7
256 alpha 2, including: (1) a serious 'wrong output' bug that could
257 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
258 that occurred in debug builds when parsing certain long numeric
Mark Dickinsona3ba4a12010-01-17 14:41:03 +0000259 strings corresponding to subnormal values, (3) a memory leak for
260 some values large enough to cause overflow, and (4) a number of
261 flaws that could lead to incorrectly rounded results.
Mark Dickinson46672512010-01-12 23:09:26 +0000262
Benjamin Peterson533849a2009-12-30 19:47:05 +0000263- Issue #7604: Deleting an unset slotted attribute did not raise an
264 AttributeError.
265
Antoine Pitrou2795e6c2009-12-12 19:26:06 +0000266- Issue #7466: segmentation fault when the garbage collector is called
267 in the middle of populating a tuple. Patch by Florent Xicluna.
268
Amaury Forgeot d'Arcea315ac2009-12-01 22:03:44 +0000269- Issue #7419: setlocale() could crash the interpreter on Windows when called
270 with invalid values.
271
Amaury Forgeot d'Arc36dfe782009-11-30 00:16:44 +0000272- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
273 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
274
Ronald Oussoren1b2cad02009-11-19 17:30:05 +0000275- Issue #7085: Fix crash when importing some extensions in a thread
276 on MacOSX 10.6.
277
Mark Dickinsonb6447512009-11-15 10:17:48 +0000278- Issue #7298: fixes for range and reversed(range(...)). Iteration
279 over range(a, b, c) incorrectly gave an empty iterator when a, b and
280 c fit in C long but the length of the range did not. Also fix
281 several cases where reversed(range(a, b, c)) gave wrong results, and
282 fix a refleak for reversed(range(a, b, c)) with large arguments.
283
Raymond Hettingera9311a32009-11-01 21:02:38 +0000284- Issue #7244: itertools.izip_longest() no longer ignores exceptions
285 raised during the formation of an output tuple.
286
Benjamin Peterson7dc5ac52009-10-29 01:22:38 +0000287- Issue #3297: On wide unicode builds, do not split unicode characters into
288 surrogates.
289
Antoine Pitroucefb3162009-10-20 22:08:36 +0000290- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
291 fixes the problem of some exceptions being thrown at shutdown when the
292 interpreter is killed. Patch by Adam Olsen.
293
Antoine Pitrou96bb15b2009-10-14 17:18:54 +0000294- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitroueda95e92009-10-19 19:47:59 +0000295 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou96bb15b2009-10-14 17:18:54 +0000296
Mark Dickinson2bbeb0e2009-09-29 19:24:38 +0000297- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
298 of producing internally inconsistent Python longs.
299
Philip Jenvey962b05c2009-09-29 05:03:48 +0000300- Issue #6990: Fix threading.local subclasses leaving old state around
301 after a reference cycle GC which could be recycled by new locals.
302
Mark Dickinson424d75a2009-09-06 10:20:23 +0000303- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
304
Amaury Forgeot d'Arcaf0312a2009-08-29 23:19:16 +0000305- Issue #6750: A text file opened with io.open() could duplicate its output
306 when writing from multiple threads at the same time.
307
Matthias Klosed4337802009-09-13 15:29:48 +0000308Library
309-------
R. David Murrayd0a04ff2010-02-21 04:48:18 +0000310
Ronald Oussoren218cc582010-04-18 20:49:34 +0000311- Issue #7154: urllib.request can now detect the proxy settings on OSX 10.6
312 (as long as the user didn't specify 'automatic proxy configuration').
313
Victor Stinnera5ab4fc2010-04-16 12:47:52 +0000314- Issue #8412: os.system() now accepts bytes, bytearray and str with
315 surrogates.
316
Victor Stinnercfbb23a2010-03-22 02:00:11 +0000317- Issue #4282: Fix the main function of the profile module for a non-ASCII
318 script, open the file in binary mode and not in text mode with the default
319 (utf8) encoding.
320
Victor Stinner19495a72010-03-21 20:41:54 +0000321- Issue #7774: Set sys.executable to an empty string if argv[0] has been set to
322 an non existent program name and Python is unable to retrieve the real
323 program name
324
Ezio Melottidab886a2010-03-06 15:27:04 +0000325- Issue #6509: fix re.sub to work properly when the pattern, the string, and
326 the replacement were all bytes. Patch by Antoine Pitrou.
327
Victor Stinnera9d157a2010-03-04 12:16:27 +0000328- Issue #1054943: Fix unicodedata.normalize('NFC', text) for the Public Review
329 Issue #29
330
Victor Stinnerda135452010-03-04 00:33:35 +0000331- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
332 reset also the pointer to the current pointer context.
333
Barry Warsaw07129212010-03-01 21:56:18 +0000334- Issue #7250: Fix info leak of os.environ across multi-run uses of
335 wsgiref.handlers.CGIHandler.
336
Florent Xiclunae94b2212010-02-27 14:37:21 +0000337- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
338
Florent Xiclunae36b2c62010-02-27 11:38:27 +0000339- Issue #691291: codecs.open() should not convert end of lines on reading and
340 writing.
341
Thomas Heller41c5d2f2010-02-23 20:32:43 +0000342- Issue #7959: ctypes callback functions are now registered correctly
Ezio Melotti40ea6502010-02-24 16:58:58 +0000343 with the cycle garbage collector.
Thomas Heller41c5d2f2010-02-23 20:32:43 +0000344
Andrew M. Kuchling54e14f22010-02-22 22:21:05 +0000345- Issue #6666: fix bug in trace.py that applied the list of directories
346 to be ignored only to the first file. Noted by Bogdan Opanchuk.
347
Andrew M. Kuchling3fda93e2010-02-22 16:59:30 +0000348- Issue #7597: curses.use_env() can now be called before initscr().
349 Noted by Kan-Ru Chen.
350
Ezio Melottid2a577d2010-02-22 16:01:22 +0000351- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
352
R. David Murrayd0a04ff2010-02-21 04:48:18 +0000353- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
354 messages parsed by email.Parser.HeaderParser.
355
Brett Cannon39440b12010-02-19 16:05:28 +0000356- Issue #7361: Importlib was not handling bytecode files less than 8 bytes in
357 length properly.
Matthias Klosed4337802009-09-13 15:29:48 +0000358
R. David Murray709b4c32010-02-11 00:25:17 +0000359- Issue #7835: shelve should no longer produce mysterious warnings during
360 interpreter shutdown.
361
Antoine Pitrou54319282010-02-09 16:53:09 +0000362- Issue #6233: ElementTree failed converting unicode characters to XML
363 entities when they could't be represented in the requested output
364 encoding. Patch by Jerry Chen.
365
Antoine Pitrouc9213f52010-02-04 20:26:18 +0000366- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
367 specified, rather than fall through to AF_PACKET (in the `socket` module).
368 Also, raise ValueError rather than TypeError when an unknown TIPC address
369 type is specified. Patch by Brian Curtin.
370
Antoine Pitrou66f9fea2010-01-31 23:20:26 +0000371- Issue #6939: Fix file I/O objects in the `io` module to keep the original
372 file position when calling `truncate()`. It would previously change the
373 file position to the given argument, which goes against the tradition of
374 ftruncate() and other truncation APIs. Patch by Pascal Chambon.
375
Benjamin Peterson69de1572010-01-27 02:28:22 +0000376- Issue #7792: Registering non-classes to ABCs raised an obscure error.
377
Benjamin Peterson371c3072010-01-27 01:56:08 +0000378- Issue #7785: Don't accept bytes in FileIO.write().
379
Benjamin Peterson79e0b812010-01-25 03:40:53 +0000380- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
381 the release file is empty.
382
Antoine Pitrou1b643312010-01-17 12:19:45 +0000383- Issue #7561: Fix crashes when using bytearray objects with the posix
384 module.
385
R. David Murrayfa606922010-01-16 18:41:00 +0000386- Issue #1670765: Prevent email.generator.Generator from re-wrapping
387 headers in multipart/signed MIME parts, which fixes one of the sources of
388 invalid modifications to such parts by Generator.
389
Antoine Pitrou46e4dd22010-01-15 00:31:01 +0000390- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
391 1-byte argument. Patch by Victor Stinner.
392
Antoine Pitrou0560e8a2010-01-14 17:37:24 +0000393- Issue #3299: Fix possible crash in the _sre module when given bad
394 argument values in debug mode. Patch by Victor Stinner.
395
Benjamin Peterson109d3ab2010-01-13 03:53:14 +0000396- Issue #7681: Use floor division in appropiate places in the wave module.
397
Tarek Ziadé343e2ff2010-01-11 23:23:44 +0000398- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
399 Extension extra options may change the output without changing the .c
400 file). Initial patch by Collin Winter.
401
Tarek Ziadé5e9615f2010-01-09 00:03:39 +0000402- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
403 gcc when it has a fully qualified configuration prefix. Initial patch
404 by Arfrever.
405
Antoine Pitrou1a2d3562010-01-08 17:56:16 +0000406- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
407 the destruction of weakref'ed objects while iterating.
408
Antoine Pitrou901d81e2010-01-07 18:02:53 +0000409- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
410 Victor Stinner.
411
R. David Murray93a59652010-01-06 20:12:07 +0000412- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
413 opening an empty or very small file.
414
Tarek Ziadéb7e82bb2009-12-21 23:18:02 +0000415- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
416 MSVC XML Manifest file in text mode so string patterns can be used
417 in regular expressions.
418
Tarek Ziadé63d14c02009-12-21 00:08:17 +0000419- Issue #7552: Removed line feed in the base64 Authorization header in
420 the Distutils upload command to avoid an error when PyPI reads it.
421 This occurs on long passwords. Initial patch by JP St. Pierre.
422
Senthil Kumaran4b9fbeb2009-12-20 07:18:22 +0000423- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
424 Tatsuhiro Tsujikawa.
425
Antoine Pitrouc8428d32009-12-14 18:23:30 +0000426- Issue #4757: `zlib.compress` and other methods in the zlib module now
427 raise a TypeError when given an `str` object (rather than a `bytes`-like
428 object). Patch by Victor Stinner and Florent Xicluna.
429
Benjamin Peterson6b59f772009-12-13 19:30:15 +0000430- Issue #7349: Make methods of file objects in the io module accept None as an
431 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
432 the same as passing no argument.
433
R. David Murraya6cdd832009-12-12 18:38:24 +0000434- Issue #5949: added check for correct lineends in input from IMAP server
435 in imaplib.
436
Raymond Hettinger64eaa202009-12-10 05:36:11 +0000437- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
438
Antoine Pitrou4fad6bd2009-12-08 16:00:03 +0000439- Issue #6986: Fix crash in the JSON C accelerator when called with the
440 wrong parameter types. Patch by Victor Stinner.
441
Tarek Ziadéd26d5382009-12-06 09:30:47 +0000442- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
443 generated in Distutils. Patch by Stephen Emslie.
444
Martin v. Löwis8ab31012009-12-03 21:14:10 +0000445- Issue #4120: Drop reference to CRT from manifest when building extensions with
446 msvc9compiler.
447
Raymond Hettinger6c8ee7a2009-11-30 21:55:17 +0000448- Issue #7410: deepcopy of itertools.count was resetting the count.
449
Antoine Pitroubcc63a82009-11-28 16:16:09 +0000450- Issue #4486: When an exception has an explicit cause, do not print its
451 implicit context too. This affects the `traceback` module as well as
452 built-in exception printing.
453
Senthil Kumarand884f8a2009-11-23 19:06:11 +0000454- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
455
Tarek Ziadéfd9ac222009-11-19 05:41:34 +0000456- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
457 be 2.
458
Raymond Hettingerb868e632009-11-19 01:02:56 +0000459- Issue #3976: pprint for sets, frozensets, and dicts now succeed when
460 they contain unorderable types.
461
Benjamin Peterson3a2249d2009-11-19 21:26:17 +0000462- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
463 of __str__.
Benjamin Petersona1f9c042009-11-19 03:10:36 +0000464
Lars Gustäbel7dfcef52009-11-18 21:11:27 +0000465- Issue #7341: Close the internal file object in the TarFile constructor in
466 case of an error.
467
Tarek Ziadé2cc70482009-11-18 10:19:38 +0000468- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
469 Windows box. Help provided by David Bolen.
470
Nick Coghlanb830a232009-11-15 23:27:31 +0000471- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
472
Antoine Pitrou4def5152009-11-13 22:39:40 +0000473- Issue #7318: multiprocessing now uses a timeout when it fails to establish
474 a connection with another process, rather than looping endlessly. The
475 default timeout is 20 seconds, which should be amply sufficient for
476 local connections.
477
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000478- Issue #7282: Fix a memory leak when an RLock was used in a thread other
479 than those started through `threading.Thread` (for example, using
480 `_thread.start_new_thread()`).
481
Brett Cannon3d26b952009-11-07 23:57:20 +0000482- Issue #7187: Importlib would not silence the IOError raised when trying to
483 write new bytecode when it was made read-only.
484
Antoine Pitroua9546072009-11-05 13:51:19 +0000485- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
486 which are part of a reference cycle.
487
Antoine Pitrou868b5782009-11-02 11:40:19 +0000488- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
489 a modification is done through it. This fixes inconsistencies and test
490 failures on systems with slightly bogus mtime behaviour.
491
Gregory P. Smith6c4a7252009-11-01 20:36:24 +0000492- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
493
Gregory P. Smithfc1c75d2009-11-01 18:48:31 +0000494- Issue #7246 & Issue #7208: getpass now properly flushes input before
495 reading from stdin so that existing input does not confuse it and
496 lead to incorrect entry or an IOError. It also properly flushes it
497 afterwards to avoid the terminal echoing the input afterwards on
498 OSes such as Solaris.
499
Mark Dickinson9050bb22009-10-29 12:25:07 +0000500- Issue #7233: Fix a number of two-argument Decimal methods to make
501 sure that they accept an int or long as the second argument. Also
502 fix buggy handling of large arguments (those with coefficient longer
503 than the current precision) in shift and rotate.
504
Antoine Pitroua3af0eb2009-10-27 17:49:21 +0000505- Issue #7205: Fix a possible deadlock when using a BZ2File object from
506 several threads at once.
507
Tarek Ziadéc76bcea2009-10-25 23:16:51 +0000508- Issue #7071: byte-compilation in Distutils is now done with respect to
509 sys.dont_write_bytecode.
510
Mark Dickinson2d4fce22009-10-20 13:40:25 +0000511- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
512 larger than emax.
513
Antoine Pitroueda95e92009-10-19 19:47:59 +0000514- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
515 platforms, and assorted locale fixes by Derk Drukker.
516
Antoine Pitroue566bda2009-10-19 18:24:35 +0000517- Issue #5833: Fix extra space character in readline completion with the
518 GNU readline library version 6.0.
519
Senthil Kumaran11301632009-10-11 06:07:46 +0000520- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
521
R. David Murray290e9392009-10-10 00:57:04 +0000522- Issue #7082: When falling back to the MIME 'name' parameter, the
523 correct place to look for it is the Content-Type header.
524
Benjamin Peterson0c7f9c92009-10-09 21:53:27 +0000525- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
526 builtin tokenizer.
527
Mark Dickinsonb0907612009-10-07 19:24:43 +0000528- Issue #7048: Force Decimal.logb to round its result when that result
529 is too large to fit in the current precision.
530
Antoine Pitrou384c9202009-09-21 21:42:29 +0000531- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitroueda95e92009-10-19 19:47:59 +0000532 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrou384c9202009-09-21 21:42:29 +0000533
Tarek Ziadé0cdc3692009-09-21 13:59:07 +0000534- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
535
Thomas Heller49ac2ac2009-09-18 20:09:57 +0000536- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
537 does now always result in NULL.
538
Thomas Heller35888e22009-09-18 19:46:56 +0000539- Issue #5042: Structure sub-subclass does now initialize correctly
540 with base class positional arguments.
541
Eric Smith53cda532009-09-18 13:59:58 +0000542- Issue #6882: Import uuid creates zombies processes.
543
Matthias Kloseb1117432009-09-13 15:31:14 +0000544- Issue #6635: Fix profiler printing usage message.
545
Matthias Klosed4337802009-09-13 15:29:48 +0000546- Issue #6888: pdb's alias command was broken when no arguments were given.
547
548- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
549 returning NaN or raising InvalidContext. Also, fix infinite recursion
550 in long(Decimal('nan')).
551
552- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
553 with no type specifier.
554
555- Issue #6239: ctypes.c_char_p return value must return bytes.
556
557- Issue #6838: Use a list to accumulate the value instead of
558 repeatedly concatenating strings in http.client's
559 HTTPResponse._read_chunked providing a significant speed increase
560 when downloading large files servend with a Transfer-Encoding of 'chunked'.
561
562- Have importlib raise ImportError if None is found in sys.modules for a
563 module.
564
565- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
566 payloads are now ordered by integer value rather than lexicographically.
567
568- Issue #6163: Fixed HP-UX runtime library dir options in
569 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
570 Michael Haubenwallner.
571
Matthias Klose513aab52010-01-16 22:02:32 +0000572- Issue #7066: archive_util.make_archive now restores the cwd if an error is
573 raised. Initial patch by Ezio Melotti.
574
Gregory P. Smith31d12ca2010-02-28 19:21:42 +0000575- Issue #7481: When a threading.Thread failed to start it would leave the
576 instance stuck in initial state and present in threading.enumerate().
577
Gregory P. Smith3fff44d2010-03-01 00:43:08 +0000578- Issue #1068268: The subprocess module now handles EINTR in internal
579 os.waitpid and os.read system calls where appropriate.
580
Matthias Klosed4337802009-09-13 15:29:48 +0000581Extension Modules
582-----------------
583
Gerhard Häring78576502010-03-05 15:55:55 +0000584- Issue #7670: sqlite3: Fixed crashes when operating on closed connections.
585
Martin v. Löwis31e8af92010-02-18 16:29:17 +0000586- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
587 msvcr100.dll is not a platform assembly anymore.
588
Mark Dickinson015fa032009-10-08 16:02:50 +0000589- Issue #7078: Set struct.__doc__ from _struct.__doc__.
590
Matthias Klosed4337802009-09-13 15:29:48 +0000591- Issue #6848: Fix curses module build failure on OS X 10.6.
592
Matthias Klose865e33b2010-01-22 01:13:15 +0000593- Expat: Fix DoS via XML document with malformed UTF-8 sequences
594 (CVE_2009_3560).
595
Gregory P. Smith18ac2b42010-03-01 05:56:53 +0000596- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
597 parameter on some platforms such as OS X.
598
Mark Dickinson95078872009-10-04 18:47:48 +0000599Tests
600-----
601
Mark Dickinson6243c6a2010-02-13 18:43:28 +0000602- Issue #7924: Fix an intermittent 'XXX undetected error' failure in
603 test_capi (only seen so far on platforms where the curses module
604 wasn't built), due to an uncleared exception.
605
Florent Xicluna9b0e9182010-03-28 11:42:38 +0000606- issue #7728: test_timeout was changed to use test.support.bind_port
R. David Murrayf35c8762010-02-06 05:09:09 +0000607 instead of a hard coded port.
608
R. David Murray14520952009-12-20 17:37:25 +0000609- Issue #7376: instead of running a self-test (which was failing) when called
610 with no arguments, doctest.py now gives a usage message.
611
R. David Murrayc009b442009-12-14 22:57:04 +0000612- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
613 instead of a hardcoded port number in test_rapid_restart.
614
R. David Murray8054a5d2009-12-04 00:13:33 +0000615- Issue #7431: use TESTFN in test_linecache instead of trying to create a
616 file in the Lib/test directory, which might be read-only for the
617 user running the tests.
618
R. David Murray9f9b46c2009-11-15 00:35:37 +0000619- Issue #7324: add a sanity check to regrtest argument parsing to
620 catch the case of an option with no handler.
621
Antoine Pitrouca154092009-11-13 16:31:51 +0000622- Issue #6551: test_zipimport could import and then destroy some modules of
623 the encodings package, which would make other tests fail further down
624 the road because the internally cached encoders and decoders would point
625 to empty global variables.
626
Antoine Pitroub78ba6b2009-11-11 21:01:33 +0000627- Issue #7295: Do not use a hardcoded file name in test_tarfile.
628
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000629- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
630 primitives such as Lock, RLock, Condition, Event and Semaphore.
631
Brett Cannon142d2362009-11-05 01:34:30 +0000632- Issue #7248 (part 2): Use a unique temporary directory for importlib source
633 tests instead of tempfile.tempdir. This prevents the tests from sharing state
634 between concurrent executions on the same system.
635
636- Issue #7248: In importlib.test.source.util a try/finally block did not make
637 sure that some referenced objects actually were created in the block before
638 calling methods on the object.
639
Antoine Pitrou56e00ca2009-10-27 13:08:37 +0000640- Issue #7055: test___all__ now greedily detects all modules which have an
641 __all__ attribute, rather than using a hardcoded and incomplete list.
642
R. David Murray6bf5a2e82009-10-07 23:54:53 +0000643- Issue #7058: Added save/restore for argv and os.environ to runtest_inner
644 in regrtest, with warnings if the called test modifies them.
645
Mark Dickinson95078872009-10-04 18:47:48 +0000646- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
647
Benjamin Petersonbb81c8c2010-01-09 21:54:39 +0000648C-API
649-----
650
651- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
652 has '\0' at the end.
653
Matthias Klose513aab52010-01-16 22:02:32 +0000654- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
655 in PyArg_ParseTupleAndKeywords.
656
Matthias Klosed4337802009-09-13 15:29:48 +0000657Build
658-----
659
Martin v. Löwis4d0a20a2010-02-15 21:46:27 +0000660- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
Martin v. Löwisf6594222010-02-15 08:37:47 +0000661
Mark Dickinson173a1ee2010-01-17 21:06:28 +0000662- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
663 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
664 PyMem_Free instead. Also disable caching of powers of 5.
665
Martin v. Löwis5330aa52009-12-22 10:48:47 +0000666- Switch to OpenSSL 0.9.8l on Windows.
667
Mark Dickinsonee2dd4a2009-10-31 10:20:38 +0000668- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
669 compiles correctly under gcc on x86-64. This fixes a reported
670 problem with the --with-tsc build on x86-64.
671
Matthias Klosed4337802009-09-13 15:29:48 +0000672- Issue #6802: Fix build issues on MacOSX 10.6
673
674- Issue #6801 : symmetric_difference_update also accepts |.
675 Thanks to Carl Chenet.
676
Matthias Klose513aab52010-01-16 22:02:32 +0000677- Issue #7541: when using ``python-config`` with a framework install the
678 compiler might use the wrong library.
679
680- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
681
682- Issue #7589: Only build the nis module when the correct header files are
683 found.
Ronald Oussoren8c067812009-12-24 14:24:05 +0000684
Matthias Klosed4337802009-09-13 15:29:48 +0000685Documentation
686-------------
687
Barry Warsawa1bd4452010-02-05 19:21:12 +0000688- Updating `Using Python` documentation to include description of CPython's
689 -J and -X options.
690
Matthias Klosed4337802009-09-13 15:29:48 +0000691- Issue #6556: Fixed the Distutils configuration files location explanation
692 for Windows.
693
Matthias Klose70924dd2010-01-31 16:17:23 +0000694- Update python manual page (options -B, -O0, -s, environment variables
695 PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
696
Matthias Klosed4337802009-09-13 15:29:48 +0000697
698What's New in Python 3.1.1?
699===========================
700
701*Release date: 2009-08-13*
702
703Core and Builtins
704-----------------
705
Benjamin Peterson044446b2009-08-15 13:25:28 +0000706- Issue #6707: dir() on an uninitialized module caused a crash.
707
Georg Brandl069bcc32009-07-22 12:06:11 +0000708- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
709
Raymond Hettinger63853bb2009-07-27 20:29:18 +0000710- Issue #6573: set.union() stopped processing inputs if an instance of self
711 occurred in the argument chain.
712
R. David Murray10fc3952009-07-19 02:25:02 +0000713- Issue #6070: On posix platforms import no longer copies the execute bit
714 from the .py file to the .pyc file if it is set.
715
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +0000716- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
717 object, and not an int. Fix the corresponding error message, and the
718 documentation.
719
Mark Dickinson8c1e2942009-06-30 15:46:37 +0000720- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
721 This fixes a build failure on HP-UX: int32_t and uint32_t are
722 defined in inttypes.h instead of stdint.h on that platform.
723
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +0000724- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +0000725 the 'surrogateescape' error handler, a string which contains unpaired
726 surrogates.
727
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000728C-API
729-----
730
Georg Brandl878c3b02009-08-13 08:36:43 +0000731- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
732 NUL: Bogus TypeError detail string.
733
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000734- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Petersonb166ffd2009-07-03 13:33:17 +0000735
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000736- The code flags for old __future__ features are now available again.
737
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000738Library
739-------
740
Georg Brandle6700e92009-08-13 08:39:33 +0000741- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
742 DO/DONT correctly.
743
Georg Brandl8a038b22009-08-13 07:52:08 +0000744- Issue #6126: Fixed pdb command-line usage.
745
Antoine Pitrou0473e562009-08-06 20:52:43 +0000746- Issue #6629: Fix a data corruption issue in the new I/O library, which could
747 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
748 "wb+" mode) after having buffered a certain amount of data for reading. This
749 bug was not present in the pure Python implementation.
Matthias Klose70924dd2010-01-31 16:17:23 +0000750
Mark Dickinson825b9932009-08-06 16:08:07 +0000751- Issue #6622: Fix "local variable 'secret' referenced before
752 assignment" bug in POP3.apop.
753
Raymond Hettinger99a13ee2009-08-04 19:13:37 +0000754- Issue #6637: defaultdict.copy() did not work when the default factory
755 was left unspecified. Also, the eval/repr round-trip would fail when
756 the default_factory was None.
757
Mark Dickinson34776ca2009-08-02 20:09:59 +0000758- Issue #2715: Remove remnants of Carbon.File from binhex module.
759
Mark Dickinson8d238292009-08-02 10:16:33 +0000760- Issue #6595: The Decimal constructor now allows arbitrary Unicode
Georg Brandle6700e92009-08-13 08:39:33 +0000761decimal digits in input, as recommended by the standard. Previously
762it was restricted to accepting [0-9].
Mark Dickinson8d238292009-08-02 10:16:33 +0000763
R. David Murraya44c6b32009-07-29 15:40:30 +0000764- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
Georg Brandle6700e92009-08-13 08:39:33 +0000765unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
766descriptor errors
R. David Murraya44c6b32009-07-29 15:40:30 +0000767
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000768- Issue #1424152: Fix for http.client, urllib.request to support SSL while
Georg Brandle6700e92009-08-13 08:39:33 +0000769working through proxy. Original patch by Christopher Li, changes made by
770Senthil Kumaran
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000771
Brett Cannon2e3155e2009-07-20 03:22:43 +0000772- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
Georg Brandle6700e92009-08-13 08:39:33 +0000773the documentation said it did even though the code in PyLoader relied on the
774abstract method required by ResourceLoader.
Brett Cannon2e3155e2009-07-20 03:22:43 +0000775
Mark Dickinson8d156432009-07-18 14:43:10 +0000776- Issue #6431: Make Fraction type return NotImplemented when it doesn't
Georg Brandle6700e92009-08-13 08:39:33 +0000777know how to handle a comparison without loss of precision. Also add
778correct handling of infinities and nans for comparisons with float.
Mark Dickinson8d156432009-07-18 14:43:10 +0000779
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000780- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +0000781
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000782- Issue #6358: The exit status of a command started with os.popen() was
Georg Brandle6700e92009-08-13 08:39:33 +0000783reported differently than it did with python 2.x.
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000784
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000785- Issue #6323: The pdb debugger did not exit when running a script with a
Georg Brandle6700e92009-08-13 08:39:33 +0000786syntax error.
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000787
Georg Brandlae83d6e2009-08-13 09:04:31 +0000788- Issue #3392: The subprocess communicate() method no longer fails in select()
789 when file descriptors are large; communicate() now uses poll() when possible.
790
Antoine Pitrou53f4ed72009-07-01 15:03:38 +0000791- Issue #6369: Fix an RLE decompression bug in the binhex module.
792
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +0000793- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
794
Georg Brandlae83d6e2009-08-13 09:04:31 +0000795- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
796 sys.path.
797
798Extension Modules
799-----------------
800
Brett Cannon0c811072009-08-13 19:59:04 +0000801- Fix a segfault in expat.
802
Georg Brandlae83d6e2009-08-13 09:04:31 +0000803- Issue #4509: array.array objects are no longer modified after an operation
804 failing due to the resize restriction in-place when the object has exported
805 buffers.
806
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000807Build
808-----
809
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000810- Issue 4601: 'make install' did not set the appropriate permissions on
Georg Brandle6700e92009-08-13 08:39:33 +0000811directories.
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000812
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000813- Issue 5390: Add uninstall icon independent of whether file
Georg Brandle6700e92009-08-13 08:39:33 +0000814extensions are installed.
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000815
Brett Cannon10e35b32009-07-20 00:19:49 +0000816Test
817----
818
819- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
Georg Brandle6700e92009-08-13 08:39:33 +0000820testing when a .pyc file lacked an code object bytecode.
Brett Cannon10e35b32009-07-20 00:19:49 +0000821
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000822
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000823What's New in Python 3.1?
824=========================
825
826*Release date: 27-June-2009*
827
828Core and Builtins
829-----------------
830
Mark Dickinsonad195562009-06-24 19:01:32 +0000831- Issue #6334: Fix bug in range length calculation for ranges with
Georg Brandle6700e92009-08-13 08:39:33 +0000832large arguments.
Mark Dickinsonad195562009-06-24 19:01:32 +0000833
Raymond Hettinger159eac92009-06-23 20:38:54 +0000834- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
Georg Brandle6700e92009-08-13 08:39:33 +0000835because it wasn't recognized as a sequence).
Raymond Hettinger159eac92009-06-23 20:38:54 +0000836
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000837Library
838-------
839
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000840- Issue #6314: logging.basicConfig() performs extra checks on the "level"
Georg Brandle6700e92009-08-13 08:39:33 +0000841argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000842
Facundo Batista10706e22009-06-19 20:34:30 +0000843- Issue #6274: Fixed possible file descriptors leak in subprocess.py
844
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000845- Accessing io.StringIO.buffer now raises an AttributeError instead of
Georg Brandle6700e92009-08-13 08:39:33 +0000846io.UnsupportedOperation.
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000847
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000848- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Georg Brandle6700e92009-08-13 08:39:33 +0000849(On Unix)
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000850
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000851- Issue #1202: zipfile module would cause a struct.error when attempting to
Georg Brandle6700e92009-08-13 08:39:33 +0000852store files with a CRC32 > 2**31-1.
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000853
Matthias Kloseab2b7552009-06-22 13:05:52 +0000854Extension Modules
855-----------------
856
857- Issue #5590: Remove unused global variable in pyexpat extension.
858
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000859
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000860What's New in Python 3.1 Release Candidate 2?
861=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000862
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000863*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000864
865Core and Builtins
866-----------------
867
Raymond Hettinger94f55832009-06-12 18:40:16 +0000868- Fixed SystemError triggered by "range([], 1, -1)".
869
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000870- Issue #5924: On Windows, a large PYTHONPATH environment variable
Georg Brandle6700e92009-08-13 08:39:33 +0000871(more than 255 characters) would be completely ignored.
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000872
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000873- Issue #4547: When debugging a very large function, it was not always
Georg Brandle6700e92009-08-13 08:39:33 +0000874possible to update the lineno attribute of the current frame.
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000875
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000876- Issue #5330: C functions called with keyword arguments were not reported by
Georg Brandlb75111c2009-08-13 12:27:52 +0000877 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000878
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000879Library
880-------
881
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000882- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Georg Brandle6700e92009-08-13 08:39:33 +0000883expression string pattern was trying to match against a bytes returned by
884Popen. Tested under win32 to build the py-postgresql project.
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000885
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000886- Issue #6258: Support AMD64 in bdist_msi.
887
R. David Murray58641de2009-06-12 15:33:19 +0000888- Issue #6195: fixed doctest to no longer try to read 'source' data from
Georg Brandle6700e92009-08-13 08:39:33 +0000889binary files.
R. David Murray58641de2009-06-12 15:33:19 +0000890
Vinay Sajipaffbd872009-06-11 10:11:47 +0000891- Issue #5262: Fixed bug in next rollover time computation in
Georg Brandle6700e92009-08-13 08:39:33 +0000892TimedRotatingFileHandler.
Vinay Sajipaffbd872009-06-11 10:11:47 +0000893
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000894- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
Georg Brandle6700e92009-08-13 08:39:33 +0000895errors property. Additionally, the errors and encoding properties of StringIO
896are always None now.
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000897
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000898- Issue #6137: The pickle module now translates module names when loading
Georg Brandle6700e92009-08-13 08:39:33 +0000899or dumping pickles with a 2.x-compatible protocol, in order to make data
900sharing and migration easier. This behaviour can be disabled using the
901new `fix_imports` optional argument.
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000902
Raymond Hettinger40925d22009-06-04 18:32:39 +0000903- Removed the ipaddr module.
904
Georg Brandlb54d8012009-06-04 09:11:51 +0000905- Issue #3613: base64.{encode,decode}string are now called
Georg Brandle6700e92009-08-13 08:39:33 +0000906base64.{encode,decode}bytes which reflects what type they accept and return.
907The old names are still there as deprecated aliases.
Georg Brandlb54d8012009-06-04 09:11:51 +0000908
Georg Brandl317185a2009-06-04 09:00:56 +0000909- Issue #5767: Remove sgmlop support from xmlrpc.client.
910
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000911- Issue #6150: Fix test_unicode on wide-unicode builds.
912
Antoine Pitrouc06de472009-05-30 21:04:26 +0000913- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
Georg Brandle6700e92009-08-13 08:39:33 +0000914parameters.
Antoine Pitrouc06de472009-05-30 21:04:26 +0000915
Martin v. Löwis79b13872009-06-01 04:13:14 +0000916Windows
917-------
918
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000919- Issue #6221: Delete test registry key before running the test.
920
Martin v. Löwis79b13872009-06-01 04:13:14 +0000921- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
922
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000923C-API
924-----
925
926- Issue #5735: Python compiled with --with-pydebug should throw an
927 ImportError when trying to import modules compiled without
928 --with-pydebug, and vice-versa.
929
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000930
Brett Cannonc6d936e2009-06-07 20:09:53 +0000931Build
932-----
933
934- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
935 added LIBS to OS X framework builds.
936
Ronald Oussoren99aab652009-06-08 21:22:57 +0000937- Issue #5809: Specifying both --enable-framework and --enable-shared is
938 an error. Configure now explicity tells you about this.
939
940
Brett Cannonc6d936e2009-06-07 20:09:53 +0000941
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000942What's New in Python 3.1 release candidate 1?
943=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000944
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000945*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000946
947Core and Builtins
948-----------------
949
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000950- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
951 of the command line.
952
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000953- Issue #6012: Add cleanup support to O& argument parsing.
954
Eric Smith41669ca2009-05-23 14:23:22 +0000955- Issue #6089: Fixed str.format with certain invalid field specifiers
956 that would raise SystemError.
957
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000958- Issue #5982: staticmethod and classmethod now expose the wrapped
959 function with __func__.
960
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000961- Added support for multiple context managers in the same with-statement.
962 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000963
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000964- Issue #5829: complex("1e500") no longer raises OverflowError. This
965 makes it consistent with float("1e500") and interpretation of real
966 and imaginary literals.
967
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000968- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
969
R. David Murraydd226ea2009-05-13 12:27:21 +0000970- Issue #5994: the marshal module now has docstrings.
971
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000972- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
973 (1) inf and nan strings with trailing whitespace were incorrectly
974 rejected; (2) parsing of strings representing infinities and nans
975 was locale aware; and (3) the interpretation of fromhex('-nan')
976 didn't match that of float('-nan').
977
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000978Library
979-------
980
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000981- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
982
R. David Murrayfb123912009-05-28 18:19:00 +0000983- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
984
R. David Murray1f1b9d32009-05-27 20:56:59 +0000985- Issue #6121: pydoc now ignores leading and trailing spaces in the
986 argument to the 'help' function.
987
Georg Brandlfaf41492009-05-26 18:31:11 +0000988- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
989 arguments for strings with a space in them.
990
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000991- collections.namedtuple() was not working with the following field
992 names: cls, self, tuple, itemgetter, and property.
993
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000994- In unittest, using a skipping decorator on a class is now equivalent to
995 skipping every test on the class. The ClassTestSuite class has been removed.
996
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000997- Issue #6050: Don't fail extracting a directory from a zipfile if
998 the directory already exists.
999
Antoine Pitrou61f77b52009-05-24 15:46:13 +00001000- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
1001 than an int, which makes some operations possible under 64-bit Linux (e.g.
1002 DN_MULTISHOT with F_NOTIFY).
1003
Antoine Pitrou716c4442009-05-23 19:04:03 +00001004- Issue #5761: Add the name of the underlying file to the repr() of various
1005 IO objects.
1006
R. David Murraycaa27b72009-05-23 18:49:56 +00001007- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
1008 by Musashi Tamura, tests by Marcin Bachry.
1009
Antoine Pitrouc3ee1662009-05-23 16:02:33 +00001010- Issue #1983: Fix functions taking or returning a process identifier to use
1011 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
1012 a process identifier type wider than the standard C integer type.
1013
R. David Murray87e20742009-05-23 01:30:26 +00001014- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
1015 Patch by Farhan Ahmad, test by Marcin Bachry.
1016
Antoine Pitrou6e610062009-05-15 17:04:50 +00001017- Issue #2116: Weak references and weak dictionaries now support copy()ing and
1018 deepcopy()ing.
1019
Antoine Pitrouc1d09362009-05-15 12:15:51 +00001020- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
1021
Antoine Pitrou37d1c182009-05-14 21:54:00 +00001022- Issue #5918: Fix a crash in the parser module.
1023
Antoine Pitrou2ca24f02009-05-14 21:30:46 +00001024- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
1025
Antoine Pitroue4501852009-05-14 18:55:55 +00001026- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
1027 library. This means, for example, that opening an UTF-16 text file in
1028 append mode doesn't add a BOM at the end of the file if the file isn't
1029 empty.
1030
R. David Murray74b89242009-05-13 17:33:03 +00001031- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
1032 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
1033 corrects a pydoc regression.
1034
R. David Murray99352742009-05-07 18:24:38 +00001035- Issue 5955: aifc's close method did not close the file it wrapped,
1036 now it does. This also means getfp method now returns the real fp.
1037
Benjamin Peterson932073a2009-05-23 16:14:33 +00001038Installation
1039------------
1040
1041- Issue #6047: fullinstall has been removed because Python 3's executable will
1042 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001043
Ronald Oussorenbe7149e2009-05-26 21:39:08 +00001044- Lib/smtpd.py is no longer installed as a script.
1045
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001046Extension Modules
1047-----------------
1048
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +00001049- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +00001050
Martin v. Löwise23c8682009-05-29 16:01:34 +00001051- Issue #4873: Fix resource leaks in error cases of pwd and grp.
1052
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001053- Issue #6093: Fix off-by-one error in locale.strxfrm.
1054
Benjamin Peterson744af442009-05-23 18:51:49 +00001055- The _functools and _locale modules are now built into the libpython shared
1056 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +00001057
Antoine Pitrou20327222009-05-24 20:39:11 +00001058Build
1059-----
1060
1061- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
1062 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
1063 Clinton Roy.
1064
Brett Cannon1262e7c2009-05-11 01:47:11 +00001065Tests
1066-----
1067
1068- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1069 tests on darwin even when the OS was installed on a case-sensitive
1070 filesystem. Also fixed tests that should not be run when
1071 sys.dont_write_bytecode is true.
1072
1073
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001074What's New in Python 3.1 beta 1?
1075================================
1076
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001077*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001078
1079Core and Builtins
1080-----------------
1081
Mark Dickinson865e01a2009-05-07 16:37:01 +00001082- Issue #5914: Add new C API function PyOS_string_to_double, and
1083 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1084
Eric Smith741191f2009-05-06 13:08:15 +00001085- Issue #3382: float.__format__, complex.__format__, and %-formatting
1086 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1087 affects nan -> NAN and inf -> INF.
1088
Mark Hammond5a607a32009-05-06 08:04:54 +00001089- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1090 in all operations, including splitdrive, split, etc. splitunc() now issues
1091 a PendingDeprecation warning.
1092
Eric Smith63376222009-05-05 14:04:18 +00001093- Issue #5920: For float.__format__, change the behavior with the
1094 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1095 to be like 'g' but with at least one decimal point and with a
1096 default precision of 12. Previously, the behavior the same but with
1097 a default precision of 6. This more closely matches str(), and
1098 reduces surprises when adding alignment flags to the empty
1099 presentation type. This also affects the new complex.__format__ in
1100 the same way.
1101
Martin v. Löwis011e8422009-05-05 04:43:17 +00001102- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1103
R. David Murrayb18500d2009-05-04 22:59:07 +00001104- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1105 shadowed by classtype's, even if it was None. property now
1106 inserts the __doc__ into the subclass instance __dict__.
1107
Antoine Pitrou244651a2009-05-04 18:56:13 +00001108- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1109 sequences. Patch by Nick Barnes and Victor Stinner.
1110
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001111- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001112
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001113- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1114 received a new method, detach(). detach() disconnects the underlying stream
1115 from the buffer or text IO and returns it.
1116
Mark Dickinson33841c32009-05-01 15:37:04 +00001117- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1118 floats with absolute value over 1e50. Also remove length
1119 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1120 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001121
Eric Smith741191f2009-05-06 13:08:15 +00001122- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001123 format(complex(1, 2./3), '.5') now produces a sensible result.
1124
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001125- Issue #5864: Fix empty format code formatting for floats so that it
1126 never gives more than the requested number of significant digits.
1127
Eric Smith6dc46f52009-04-27 20:39:49 +00001128- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1129 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1130
Eric Smithcc32a112009-04-26 21:35:14 +00001131- Issue #5835: Deprecate PyOS_ascii_formatd.
1132
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001133- Issue #4971: Fix titlecase for characters that are their own
1134 titlecase, but not their own uppercase.
1135
Benjamin Peterson193152c2009-04-25 01:08:45 +00001136- Issue #5283: Setting __class__ in __del__ caused a segfault.
1137
Mark Dickinsonad476da2009-04-23 19:14:16 +00001138- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1139 z involves nans, infs or negative zeros.
1140
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001141- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001142
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001143- Issue #1869 (and many duplicates): make round(x, n) correctly
1144 rounded for a float x, by using the decimal <-> binary conversions
1145 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1146 consistently agrees with format(x, '.2f').
1147
Benjamin Petersonae937c02009-04-18 20:54:08 +00001148- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1149 some builtin types.
1150
Eric Smith0923d1d2009-04-16 20:16:10 +00001151- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1152
Eric Smith35e84722009-04-16 20:21:28 +00001153- Issue #5515: str.format() type 'n' combined with commas and leading
1154 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001155
1156- Implement PEP 378, Format Specifier for Thousands Separator, for
1157 floats.
1158
Mark Dickinson3370cce2009-04-17 22:40:53 +00001159- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001160 1e11, not 1e12. This avoids printing 13 significant digits in
1161 situations where only 12 of them are correct. Example problem
1162 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1163 long time.)
1164
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001165- Issue #1580: On most platforms, use a 'short' float repr: for a
1166 finite float x, repr(x) now outputs a string based on the shortest
1167 sequence of decimal digits that rounds to x. Previous behaviour was
1168 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001169 Another minor difference is that the new repr switches to
1170 exponential notation at 1e16 instead of the previous 1e17; this
1171 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001172
1173 There's a new sys attribute sys.float_repr_style, which takes
1174 the value 'short' to indicate that we're using short float repr,
1175 and 'legacy' if the short float repr isn't available for one
1176 reason or another.
1177
1178 The float repr change involves incorporating David Gay's 'perfect
1179 rounding' code into the Python core (it's in Python/dtoa.c). As a
1180 secondary consequence, all string-to-float and float-to-string
1181 conversions (including all float formatting operations) will be
1182 correctly rounded on these platforms.
1183
1184 See issue 1580 discussions for details of platforms for which
1185 this change does not apply.
1186
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001187- Issue #5759: float() didn't call __float__ on str subclasses.
1188
Georg Brandlabc38772009-04-12 15:51:51 +00001189- The string.maketrans() function is deprecated; there is a new static method
1190 maketrans() on the bytes and bytearray classes. This removes confusion about
1191 the types string.maketrans() is supposed to work with, and mirrors the
1192 methods available on the str class.
1193
R. David Murraydc6da8a2009-04-09 22:16:43 +00001194- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1195 its clarity and its speed.
1196
Matthias Klose091c7b12009-04-07 13:24:27 +00001197- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1198 to avoid compiler warnings.
1199
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001200- Issue #3739: The unicode-internal encoder now reports the number of characters
1201 consumed like any other encoder (instead of the number of bytes).
1202
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001203Installation
1204------------
1205
1206- Issue #5756: Install idle and pydoc with a 3 suffix.
1207
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001208Library
1209-------
1210
Martin v. Löwis403117a2009-05-24 19:19:17 +00001211- Issue #5311: bdist_msi can now build packages that do not depend on a
1212 specific Python version.
1213
Raymond Hettingereb816952009-05-29 01:22:18 +00001214- Issue #5150: IDLE's format menu now has an option to strip trailing
1215 whitespace.
1216
Vinay Sajipaffbd872009-06-11 10:11:47 +00001217- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001218 the right type checkings anymore.
1219
Thomas Heller00cfc372009-05-05 19:04:40 +00001220- Issue #4875: On win32, ctypes.util.find_library does no longer
1221 return directories.
1222
Georg Brandl243ad662009-05-05 09:00:19 +00001223- Issue #5142: Add the ability to skip modules while stepping to pdb.
1224
Georg Brandl991f9202009-05-05 08:31:54 +00001225- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1226 looking for files given by a relative filename.
1227
Georg Brandleaa84ef2009-05-05 08:14:33 +00001228- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1229 turtle demos in Demo/turtle.
1230
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001231- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1232 extracting a file to the root directory.
1233
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001234- Issue #5913: os.listdir() should fail for empty path on windows.
1235
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001236- Issue #5084: unpickling now interns the attribute names of pickled objects,
1237 saving memory and avoiding growth in size of subsequent pickles. Proposal
1238 and original patch by Jake McGuire.
1239
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001240- The json module now works exclusively with str and not bytes.
1241
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001242- Issue #3959: The ipaddr module has been added to the standard library.
1243 Contributed by Google.
1244
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001245- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1246 error when a named pipe is encountered, rather than blocking infinitely.
1247
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001248- Issue #5857: tokenize.tokenize() now returns named tuples.
1249
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001250- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1251
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001252- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1253 string is already in normalized form, by performing a quick check beforehand.
1254 Original patch by Rauli Ruohonen.
1255
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001256- Issue #5853: calling a function of the mimetypes module from several threads
1257 at once could hit the recursion limit if the mimetypes database hadn't been
1258 initialized before.
1259
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001260- Issue #5854: Updated __all__ to include some missing names and remove some
1261 names which should not be exported.
1262
Thomas Heller34596a92009-04-24 20:50:00 +00001263- Issue #3102: All global symbols that the _ctypes extension defines
1264 are now prefixed with 'Py' or '_ctypes'.
1265
1266- Issue #5041: ctypes does now allow pickling wide character.
1267
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001268- Issue #5812: For the two-argument form of the Fraction constructor,
1269 Fraction(m, n), m and n are permitted to be arbitrary Rational
1270 instances.
1271
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001272- Issue #5812: Fraction('1e6') is valid: more generally, any string
1273 that's valid for float() is now valid for Fraction(), with the
1274 exception of strings representing NaNs and infinities.
1275
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001276- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1277 bugs. Patch by Brian Quinlan.
1278
R. David Murray9e94ddf2009-04-13 17:06:33 +00001279- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1280 results in a handle_expt_event call, not handle_read_event, and POLLERR
1281 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1282 dispatcher now has an 'ignore_log_types' attribute for suppressing
1283 log messages, which is set to 'warning' by default.
1284
Matthias Klosea3d29e82009-04-07 13:13:10 +00001285- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1286 new arguments introduced in 2.5.
1287
Walter Dörwald1b08b302009-04-25 14:13:56 +00001288- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1289 makeunicodedata.py and regenerated the Unicode database (This fixes
1290 u'\u1d79'.lower() == '\x00').
1291
Matthias Klose535336f2009-04-07 13:49:45 +00001292Extension Modules
1293-----------------
1294
Benjamin Petersone04b6272009-05-04 22:25:21 +00001295- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1296 pwd.
1297
Mark Dickinsonea835e72009-04-19 20:40:33 +00001298- Issue #5463: In struct module, remove deprecated float coercion
1299 for integer type codes: struct.pack('L', 0.3) should now raise
1300 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1301 The version number has been bumped to 0.3.
1302
Matthias Klose535336f2009-04-07 13:49:45 +00001303- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1304 using Berkley-DB.
1305
Nick Coghlan47384702009-04-22 16:13:36 +00001306Tests
1307-----
1308
1309- Issue #5354: New test support function import_fresh_module() makes
1310 it easy to import both normal and optimised versions of modules.
1311 test_heapq and test_warnings have been adjusted to use it, tests for
1312 other modules with both C and Python implementations in the stdlib
1313 can be adjusted to use it over time.
1314
Walter Dörwald4ba80132009-04-25 12:48:43 +00001315- Issue #5837: Certain sequences of calls to set() and unset() for
1316 support.EnvironmentVarGuard objects restored the environment variables
1317 incorrectly on __exit__.
1318
Benjamin Petersonb173f782009-05-05 22:31:58 +00001319C-API
1320-----
1321
1322- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1323
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001324
Benjamin Petersond1735892009-03-07 18:46:21 +00001325What's New in Python 3.1 alpha 2?
1326=================================
1327
Benjamin Peterson88f14352009-04-04 21:06:52 +00001328*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001329
1330Core and Builtins
1331-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001332
Eric Smith1e1d7d22009-04-03 22:25:33 +00001333- Implement PEP 378, Format Specifier for Thousands Separator, for
1334 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001335
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001336- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1337
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001338- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1339 byte, and the 'C' code only accepts a unicode character.
1340
Georg Brandl406b3d82009-04-11 21:24:37 +00001341- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1342 when hitting the recursion limit under certain circumstances.
1343
Brett Cannon0759dd62009-04-01 18:13:07 +00001344- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1345
Georg Brandlab6f2f62009-03-31 04:16:10 +00001346- Fix a segfault when running test_exceptions with coverage, caused by
1347 insufficient checks in accessors of Exception.__context__.
1348
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001349- Issue #5604: non-ASCII characters in module name passed to
1350 imp.find_module() were converted to UTF-8 while the path is
1351 converted to the default filesystem encoding, causing nonsense.
1352
Benjamin Peterson09832742009-03-26 17:15:46 +00001353- Issue #5126: str.isprintable() returned False for space characters.
1354
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001355- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1356 the end sys.path, for compatibility with the system install of Python.
1357
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001358- Issue #4688: Add a heuristic so that tuples and dicts containing only
1359 untrackable objects are not tracked by the garbage collector. This can
1360 reduce the size of collections and therefore the garbage collection overhead
1361 on long-running programs, depending on their particular use of datatypes.
1362
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001363- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1364 improve its performance. Long divisions and remainder operations
1365 are now between 50% and 150% faster.
1366
Mark Dickinsonbd792642009-03-18 20:06:12 +00001367- Issue #4258: Make it possible to use base 2**30 instead of base
1368 2**15 for the internal representation of integers, for performance
1369 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1370 --enable-big-digits option to configure, which overrides the
1371 default. Add sys.int_info structseq to provide information about
1372 the internal format.
1373
Mark Dickinson081dfee2009-03-18 14:47:41 +00001374- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1375 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1376 and sizeof(Py_UNICODE) == 2.
1377
Eric Smith8ec90442009-03-14 12:29:34 +00001378- Issue #5237: Allow auto-numbered fields in str.format(). For
1379 example: '{} {}'.format(1, 2) == '1 2'.
1380
Antoine Pitrou652e7072009-03-13 19:25:20 +00001381- Issue #5392: when a very low recursion limit was set, the interpreter would
1382 abort with a fatal error after the recursion limit was hit twice.
1383
Matthias Klose042f1332009-04-04 14:32:42 +00001384- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1385 short file names.
1386
Benjamin Petersond1735892009-03-07 18:46:21 +00001387Library
1388-------
1389
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001390- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001391 mailbox.MH.get_message().
1392
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001393- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1394 error substitutions from non-strict codec error callbacks in
1395 incrementalencoder and StreamWriter.
1396
Georg Brandl33c28812009-04-01 23:07:29 +00001397- Issue #5656: Fix the coverage reporting when running the test suite with
1398 the -T argument.
1399
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001400- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1401
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001402- Issue #5624: Fix the _winreg module name still used in several modules.
1403
Benjamin Petersona1b49012009-03-31 23:11:32 +00001404- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1405
Jesse Nollera9314042009-03-31 22:36:44 +00001406- Issue #5619: Multiprocessing children disobey the debug flag and causes
1407 popups on windows buildbots. Patch applied to work around this issue.
1408
Jesse Noller32d68c22009-03-31 18:48:42 +00001409- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1410
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001411- Issue #5387: Fixed mmap.move crash by integer overflow.
1412
Jesse Nollerf8d00852009-03-31 03:25:07 +00001413- Issue #5261: Patch multiprocessing's semaphore.c to support context
1414 manager use: "with multiprocessing.Lock()" works now.
1415
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001416- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1417 bytes already but the failure was non-obvious.
1418
Jesse Noller7af4ef82009-03-30 16:47:15 +00001419- Issue #5177: Multiprocessing's SocketListener class now uses
1420 socket.SO_REUSEADDR on all connections so that the user no longer needs
1421 to wait 120 seconds for the socket to expire.
1422
Benjamin Peterson48e24782009-03-29 13:02:52 +00001423- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1424
Antoine Pitrou66994e12009-03-29 00:45:26 +00001425- Issue #1174606: Calling read() without arguments of an unbounded file
1426 (typically /dev/zero under Unix) could crash the interpreter.
1427
Benjamin Peterson59406a92009-03-26 17:10:29 +00001428- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1429 io.BufferedRandom have been deprecated for removal in Python 3.2.
1430
Lars Gustäbel42e00912009-03-22 20:34:29 +00001431- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1432 forever on incomplete input. That caused tarfile.open() to hang when used
1433 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1434 partial bzip2 compressed data.
1435
Mark Dickinson79f52032009-03-17 23:12:51 +00001436- Issue #2110: Add support for thousands separator and 'n' type
1437 specifier to Decimal.__format__
1438
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001439- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1440 '>' alignment characters.
1441
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001442- The error detection code in FileIO.close() could fail to reflect the `errno`
1443 value, and report it as -1 instead.
1444
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001445- Issue #5016: FileIO.seekable() could return False if the file position
1446 was negative when truncated to a C int. Patch by Victor Stinner.
1447
Mark Dickinsonae681df2009-03-21 10:26:31 +00001448Extension Modules
1449-----------------
1450
Benjamin Petersone099b372009-04-04 17:09:35 +00001451- Issue #5391: mmap now deals exclusively with bytes.
1452
Mark Dickinsonae681df2009-03-21 10:26:31 +00001453- Issue #5463: In struct module, remove deprecated overflow wrapping
1454 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001455 struct.error instead of returning b'\xff\xff\xff\xff'. The
1456 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1457 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001458
Benjamin Petersond1735892009-03-07 18:46:21 +00001459
Benjamin Petersona58a6262009-03-07 16:34:40 +00001460What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001461================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001462
Benjamin Petersona58a6262009-03-07 16:34:40 +00001463*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001464
1465Core and Builtins
1466-----------------
1467
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001468- The io module has been reimplemented in C for speed.
1469
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001470- Give dict views an informative __repr__.
1471
Eric Smith5e5c0db2009-02-20 14:25:03 +00001472- Issue #5247: Improve error message when unknown format codes are
1473 used when using str.format() with str, int, and float arguments.
1474
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001475- Issue #5249: time.strftime returned malformed string when format string
1476 contained non ascii character on windows.
1477
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001478- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1479 source has already been decoded into str.
1480
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001481- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1482 rotating the object pointer by 4 bits to the right.
1483
Mark Dickinson87ec0852009-02-09 17:15:59 +00001484- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1485 it now forces its argument to double before testing for infinity.
1486
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001487- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1488 returns a non-number type.
1489
Benjamin Peterson87618552009-02-08 15:00:52 +00001490- Issue #5182: Removed memoryview.__str__.
1491
Mark Dickinsonc008a172009-02-01 13:59:22 +00001492- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1493 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001494 the type definition cmpfunc. The tp_compare slot has been renamed
1495 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001496
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001497- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001498 were suppressing all exceptions. These include list() and bytearray().
1499
Mark Dickinson1124e712009-01-28 21:25:58 +00001500- Issue #4707: round(x, n) now returns an integer if x is an integer.
1501 Previously it returned a float.
1502
Antoine Pitroub52ec782009-01-25 16:34:23 +00001503- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1504 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1505 evaluation loop is compiled with a new dispatch mechanism which gives
1506 speedups of up to 20%, depending on the system, on various benchmarks.
1507
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001508- Issue #4874: Most builtin decoders now reject unicode input.
1509
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001510- Issue #4842: Don't allow trailing 'L' when constructing an integer
1511 from a string.
1512
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001513- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1514
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001515- Issue #4838: When a module is deallocated, free the memory backing the
1516 optional module state data.
1517
Mark Dickinson8055afd2009-01-17 10:04:45 +00001518- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1519 type to (void *).
1520
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001521- Issue #4935: The overflow checking code in the expandtabs() method common
1522 to str, bytes and bytearray could be optimized away by the compiler, letting
1523 the interpreter segfault instead of raising an error.
1524
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001525- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1526 __next__ method.
1527
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001528- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1529 function no longer attempt to call the __long__ slot to convert an object
1530 to an integer. Only the __int__ and __trunc__ slots are examined.
1531
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001532- Issue #4893: Use NT threading on CE.
1533
Martin v. Löwisec59d042009-01-12 07:59:10 +00001534- Issue #4915: Port sysmodule to Windows CE.
1535
Antoine Pitrouab868312009-01-10 15:40:25 +00001536- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1537 common cases are optimized thanks to a dedicated fast path and a moderate
1538 amount of loop unrolling.
1539
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001540- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1541 collecting the oldest generation) so that allocating lots of objects without
1542 destroying them does not show quadratic performance. Based on a proposal by
1543 Martin von Löwis at
1544 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1545
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001546- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001547 having been closed (for instance, a read() call could return some
1548 previously buffered data). Patch by Dmitry Vasiliev.
1549
Antoine Pitrou05608432009-01-09 18:53:14 +00001550- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1551 flag to work properly. Furthermore, when specifying -u, the text stdout
1552 and stderr streams have line-by-line buffering enabled (the default being
1553 to buffer arbitrary chunks of data).
1554
Raymond Hettinger35631532009-01-09 03:58:09 +00001555- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1556 instead of ints (reducing its size from 4 to 8 times thereby reducing
1557 Python's overall memory).
1558
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001559- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1560 an existing .py counterpart, override the co_filename attributes of all
1561 code objects if the original filename is obsolete (which can happen if the
1562 file has been renamed, moved, or if it is accessed through different paths).
1563 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1564
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001565- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1566 one byte. Also fixes the meaning of len() so that it returns the number of
1567 items, rather than the size in bytes.
1568
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001569- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1570
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001571- Issue #4747: When the terminal does not use utf-8, executing a script with
1572 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1573
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001574- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001575 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001576
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001577- Issue #3680: Reference cycles created through a dict, set or deque iterator
1578 did not get collected.
1579
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001580- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1581 where the tp_hash and tp_dict slots are both NULL.
1582
Georg Brandlccc47b62008-12-28 11:44:14 +00001583- Issue #4759: None is now allowed as the first argument of
1584 bytearray.translate(). It was always allowed for bytes.translate().
1585
Skip Montanaro80072cb2008-12-23 03:51:14 +00001586- Added test case to ensure attempts to read from a file opened for writing
1587 fail.
1588
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001589- Issue #3106: Speedup some comparisons (str/str and int/int).
1590
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001591- Issue #2183: Simplify and optimize bytecode for list, dict and set
1592 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1593
Antoine Pitrou621601a2008-12-17 23:18:19 +00001594- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1595 print elapsed times, not only when some objects are uncollectable /
1596 unreachable. Original patch by Neil Schemenauer.
1597
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001598- Issue #3439: Add a bit_length method to int.
1599
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001600- Issue #2173: When getting device encoding, check that return value of
1601 nl_langinfo is not the empty string. This was causing silent build
1602 failures on OS X.
1603
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001604- Issue #4597: Fixed several opcodes that weren't always propagating
1605 exceptions.
1606
1607- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001608 context manager returns a value that cannot be converted to a bool.
1609
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001610- Issue #4445: Replace "sizeof(PyBytesObject)" with
1611 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1612 bytes instances. On a typical machine this saves 3 bytes of memory
1613 (on average) per allocation of a bytes instance.
1614
Christian Heimesa872de52008-12-05 08:26:55 +00001615- Issue #4533: File read operation was dreadfully slow due to a slowly
1616 growing read buffer. Fixed by using the same growth rate algorithm as
1617 Python 2.x.
1618
Antoine Pitrou5504e892008-12-06 21:27:53 +00001619- Issue #4509: Various issues surrounding resize of bytearray objects to
1620 which there are buffer exports (e.g. memoryview instances).
1621
Georg Brandlf9734072008-12-07 15:30:06 +00001622- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1623 method on file objects with closefd=False. The file descriptor is still
1624 kept open but the file object behaves like a closed file. The ``FileIO``
1625 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001626
Antoine Pitroubc420402008-12-07 20:14:49 +00001627- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1628 larger than 1.
1629
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001630- Issue #4748: Lambda generators no longer return a value.
1631
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001632- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1633
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001634- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1635 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1636 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1637 of using the replace error handler in PyUnicode_DecodeUTF8().
1638
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001639Library
1640-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001641
Tarek Ziadé3cc12f62009-07-22 09:03:01 +00001642- Issue #6545: Removed assert statements in distutils.Extension, so the
1643 behavior is similar when used with -O.
1644
Tarek Ziadé24448fa2009-07-11 11:01:14 +00001645- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
1646 "PyInit" prefix, rather than "init".
1647
Georg Brandld80344f2009-08-13 12:26:19 +00001648- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1649
Tarek Ziadé7e646002009-07-10 09:16:07 +00001650- Issue #6455: Fixed test_build_ext under win32.
1651
Tarek Ziadé35c88a82009-07-04 02:05:51 +00001652- Issue #6413: Fixed the log level in distutils.dist for announce.
1653
Tarek Ziadé385029f2009-07-03 08:37:27 +00001654- Issue #6403: Fixed package path usage in build_ext.
1655
Tarek Ziadé2c3de402009-06-29 16:46:14 +00001656- Issue #6365: Distutils build_ext inplace mode was copying the compiled
1657 extension in a subdirectory if the extension name had dots.
1658
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001659- Issue #6287: Added the license field in Distutils documentation.
1660
Tarek Ziadéff543362009-06-11 09:25:41 +00001661- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1662
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001663- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1664 in Makefiles. This prevents compile errors when using syntax like:
1665 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1666
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001667- Issue #6131: test_modulefinder leaked when run after test_distutils.
1668 Patch by Hirokazu Yamamoto.
1669
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001670- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1671
Vinay Sajipaffbd872009-06-11 10:11:47 +00001672- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001673 and tests on pywin32 by Tim Golden.
1674
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001675- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1676
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001677- Issue #6046: Fixed the library extension when distutils build_ext is used
1678 inplace. Initial patch by Roumen Petrov.
1679
Vinay Sajipaffbd872009-06-11 10:11:47 +00001680- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001681 subcommand.
1682
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001683- Issue #6022: a test file was created in the current working directory by
1684 test_get_outputs in Distutils.
1685
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001686- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1687 inplace option. Initial patch by kxroberto.
1688
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001689- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1690 for old-style extensions.
1691
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001692- Issue #5976: Fixed Distutils test_check_environ.
1693
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001694- Issue #5941: Distutils build_clib command was not working anymore because
1695 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1696 Makefile besides AR and make Distutils use it. Original patch by David
1697 Cournapeau.
1698
R. David Murrayb507d2e2009-04-29 15:34:32 +00001699- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1700
Vinay Sajipaffbd872009-06-11 10:11:47 +00001701- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001702 anymore.
1703
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001704- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001705 sysconfig.get_config_vars.
1706
Tarek Ziadé23336082009-04-25 12:39:56 +00001707- Issue #4951: Fixed failure in test_httpservers.
1708
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001709- Issue #5795: Fixed test_distutils failure on Debian ppc.
1710
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001711- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1712
Georg Brandl1f9fa312009-04-27 16:42:58 +00001713- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1714 a value in SafeConfigParser.
1715
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001716- Issue #5732: added a new command in Distutils: check.
1717
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001718- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001719 platforms. Initial patch by Paul Moore.
1720
Tarek Ziadéf6370502009-04-05 22:57:21 +00001721- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1722 Initial fix by Steven Bethard.
1723
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001724- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1725 Initial fix by Wayne Davison.
1726
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001727- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001728
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001729- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001730
Brett Cannonf47e84c2009-04-01 16:06:01 +00001731- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1732 instead of performing them in functions. Helps prevent import deadlocking in
1733 threads.
1734
R. David Murraye59482e2009-04-01 03:42:00 +00001735- Issue #2522: locale.format now checks its first argument to ensure it has
1736 been passed only one pattern, avoiding mysterious errors where it appeared
1737 that it was failing to do localization.
1738
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001739- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1740 Brandl.
1741
Antoine Pitrou350370c2009-03-14 00:13:13 +00001742- Issue #1222: locale.format() bug when the thousands separator is a space
1743 character.
1744
Tarek Ziadé516db942009-03-11 12:52:00 +00001745- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1746 Tim Golden.
1747
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001748- collections.deque() objects now have a read-only attribute called maxlen.
1749
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001750- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1751 it is has been populated and properly configured in order to prevent
1752 window flashing.
1753
Guilherme Polo56f5be52009-03-07 01:54:57 +00001754- Issue #4792: Prevent a segfault in _tkinter by using the
1755 guaranteed to be safe interp argument given to the PythonCmd in place of
1756 the Tcl interpreter taken from a PythonCmd_ClientData.
1757
1758- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1759
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001760- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1761 Original patch by Akira Kitada.
1762
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001763- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1764
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001765- Issue #5385: Fixed mmap crash after resize failure on windows.
1766
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001767- Issue #5179: Fixed subprocess handle leak on failure on windows.
1768
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001769- PEP 372: Added collections.OrderedDict().
1770
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001771- The _asdict() for method for namedtuples now returns an OrderedDict().
1772
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001773- configparser now defaults to using an ordered dictionary.
1774
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001775- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1776 import guess_extension`` was used.
1777
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001778- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1779 with same tagname but larger size than first map. (Windows)
1780
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001781- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1782 overrun.
1783
Tarek Ziadéf0721222009-02-28 10:16:43 +00001784- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1785 bdist_rpm command.
1786
1787- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1788
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001789- Issue #5052: make Distutils compatible with 2.3 again.
1790
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001791- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1792 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001793
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001794- Issue #5287: Add exception handling around findCaller() call to help out
1795 IronPython.
1796
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001797- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1798 The file was resized to wrong size.
1799
1800- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1801
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001802- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001803 from the package_data and the data_files metadata.
1804
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001805- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001806 support.TempdirManager, to avoid writing in the tests directory.
1807
Tarek Ziadé68c50952009-02-13 23:04:17 +00001808- Issue #4524: distutils build_script command failed with --with-suffix=3.
1809 Initial patch by Amaury Forgeot d'Arc.
1810
Tarek Ziadé811d6242009-02-13 22:26:15 +00001811- Issue #2461: added tests for distutils.util
1812
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001813- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1814 which inherited from numbers.py which did not have __slots__ defined. The
1815 numbers hierarchy now has its own __slots__ declarations.
1816
Antoine Pitroub353c122009-02-11 00:39:14 +00001817- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1818 encoding.
1819
Thomas Heller465c8022009-02-10 18:59:04 +00001820- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1821 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1822
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001823- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1824 under NT and OS2. Patch by Philip Jenvey.
1825
Brett Cannonbefb14f2009-02-10 02:10:16 +00001826- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1827 to be recreated. This avoids a timing hole thanks to the old reliance on the
1828 ctime of the files involved.
1829
Guilherme Polob681df42009-02-09 22:33:59 +00001830- Issue #5122: Synchronize tk load failure check to prevent a potential
1831 deadlock.
1832
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001833- Issue #1818: collections.namedtuple() now supports a keyword argument
1834 'rename' which lets invalid fieldnames be automatically converted to
1835 positional names in the form, _1, _2, ...
1836
Guilherme Poloae098992009-02-09 16:44:24 +00001837- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1838
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001839- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1840 public documented method ``ZipImporter.get_filename()``.
1841
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001842- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1843 the execution of packages by looking for and executing a ``__main__``
1844 submodule when a package name is supplied. Initial patch by Andi
1845 Vajda.
1846
Guilherme Polo491aee22009-02-06 23:16:11 +00001847- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1848 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1849 Tkapp_Call when calling from a thread different than the one that created
1850 the Tcl interpreter. Patch by Robert Hancock.
1851
Eric Smith0e5b5622009-02-06 01:32:42 +00001852- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1853 Ross Light.
1854
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001855- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001856 environment/Makefile. Patch by Douglas Greiman.
1857
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001858- Issue #1276768: The verbose option was not used in the code of
1859 distutils.file_util and distutils.dir_util.
1860
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001861- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001862 --enabled-shared activated. Initial patch by Dave Peterson.
1863
Guilherme Polo7f423952009-02-02 21:17:09 +00001864- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1865
Raymond Hettinger85602262009-02-03 04:19:10 +00001866- The shelve module now defaults to pickle protocol 3.
1867
Brett Cannone61426e2009-01-30 01:31:34 +00001868- Fix a bug in the trace module where a bytes object from co_lnotab had its
1869 items being passed through ord().
1870
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001871- Issue #2047: shutil.move() could believe that its destination path was
1872 inside its source path if it began with the same letters (e.g. "src" vs.
1873 "src.new").
1874
Guilherme Polo5f238482009-01-28 14:41:10 +00001875- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1876
Raymond Hettinger89e12962009-01-26 02:09:03 +00001877- Removed isSequenceType(), isMappingType, and isNumberType() from the
1878 operator module; use the abstract base classes instead. Also removed
1879 the repeat() function; use mul() instead.
1880
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001881- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001882 collections.namedtuple() relied on __name__ being defined.
1883
1884- Backport importlib from Python 3.1. Only the import_module() function has
1885 been backported to help facilitate transitions from 2.7 to 3.1.
1886
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001887- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1888 the tar file was overriden by the gztar one.
1889
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001890- Issue #4863: distutils.mwerkscompiler has been removed.
1891
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001892- Added a new itertools functions: combinations_with_replacement()
1893 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001894
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001895- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001896 allowed non-integer arguments.
1897
Jesse Noller41faa542009-01-25 03:45:53 +00001898- Fix and properly document the multiprocessing module's logging
1899 support, expose the internal levels and provide proper usage
1900 examples.
1901
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001902- Issue #1672332: fix unpickling of subnormal floats, which was
1903 producing a ValueError on some platforms.
1904
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001905- Issue #3881: Help Tcl to load even when started through the
1906 unreadable local symlink to "Program Files" on Vista.
1907
Martin v. Löwis59e47792009-01-24 14:10:07 +00001908- Issue #4710: Extract directories properly in the zipfile module;
1909 allow adding directories to a zipfile.
1910
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001911- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001912 --without-threads argument. When this occurs, _multiprocessing will
1913 be disabled, and not compiled.
1914
Antoine Pitrou08838b62009-01-21 00:55:13 +00001915- Issue #5008: When a file is opened in append mode with the new IO library,
1916 do an explicit seek to the end of file (so that e.g. tell() returns the
1917 file size rather than 0). This is consistent with the behaviour of the
1918 traditional 2.x file object.
1919
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001920- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1921 parameter was set.
1922
Mark Dickinson8dd05142009-01-20 20:43:58 +00001923- Issue #4842: Always append a trailing 'L' when pickling longs using
1924 pickle protocol 0. When reading, the 'L' is optional.
1925
Brett Cannonafccd632009-01-20 02:21:27 +00001926- Add the importlib package.
1927
Jesse Noller9a0fc972009-01-18 21:12:58 +00001928- Issue #4301: Patch the logging module to add processName support, remove
1929 _check_logger_class from multiprocessing.
1930
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001931- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001932 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001933
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001934- Issue #4959: inspect.formatargspec now works for keyword only arguments
1935 without defaults.
1936
Jesse Noller6214edd2009-01-19 16:23:53 +00001937- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1938 for *nix machines for negative handles and large int handles. Without this check
1939 it is possible to segfault the interpreter.
1940
Jesse Nollerb0516a62009-01-18 03:11:38 +00001941- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1942 in sharedctypes.py.
1943
1944- Issue #1225107: inspect.isclass() returned True for instances with a custom
1945 __getattr__.
1946
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001947- Issue #3826 and #4791: The socket module now closes the underlying socket
1948 appropriately when it is being used via socket.makefile() objects
1949 rather than delaying the close by waiting for garbage collection to do it.
1950
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001951- Issue #1696199: Add collections.Counter() for rapid and convenient
1952 counting.
1953
Antoine Pitrou308705e2009-01-10 16:22:51 +00001954- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1955
Thomas Heller5e4e4272009-01-08 09:34:20 +00001956- Issue #4867: Fixed a crash in ctypes when passing a string to a
1957 function without defining argtypes.
1958
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001959- Issue #4272: Add an optional argument to the GzipFile constructor to override
1960 the timestamp in the gzip stream. The default value remains the current time.
1961 The information can be used by e.g. gunzip when decompressing. Patch by
1962 Jacques Frechet.
1963
Mark Dickinson315a20a2009-01-04 21:34:18 +00001964- Restore Python 2.3 compatibility for decimal.py.
1965
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001966- Issue #3638: Remove functions from _tkinter module level that depend on
1967 TkappObject to work with multiple threads.
1968
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001969- Issue #4718: Adapt the wsgiref package so that it actually works with
1970 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001971 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1972
Raymond Hettinger771ed762009-01-03 19:20:32 +00001973- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1974 to the decimal module.
1975
Georg Brandl3a9b0622009-01-03 22:07:57 +00001976- Fractions.from_float() no longer loses precision for integers too big to
1977 cast as floats.
1978
Mark Dickinsonf9236412009-01-02 23:23:21 +00001979- Issue #4812: add missing underscore prefix to some internal-use-only
1980 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1981
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001982- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001983 did unnecessary work in the common case where no key function was specified.
1984
Georg Brandlb1441c72009-01-03 22:33:39 +00001985- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1986 the function is not a generator.
1987
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001988- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1989 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001990
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001991- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001992 function. Original patch by Thomas Heller.
1993
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001994- Issue #3767: Convert Tk object to string in tkColorChooser.
1995
Martin v. Löwise354d782008-12-29 16:03:04 +00001996- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1997
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001998- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1999 the code under test can be written inline if more practical.
2000
Georg Brandldb7b6b92009-01-01 15:53:14 +00002001- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
2002 works as expected in the interactive environment.
2003
Antoine Pitroudb5fe662008-12-27 15:50:40 +00002004- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
2005 Gabriel Genellina.
2006
Antoine Pitrou180a3362008-12-14 16:36:46 +00002007- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
2008 boundary.
2009
Nick Coghlanf088e5e2008-12-14 11:50:48 +00002010- Issue #4223: inspect.getsource() will now correctly display source code
2011 for packages loaded via zipimport (or any other conformant PEP 302
2012 loader). Original patch by Alexander Belopolsky.
2013
2014- Issue #4201: pdb can now access and display source code loaded via
2015 zipimport (or any other conformant PEP 302 loader). Original patch by
2016 Alexander Belopolsky.
2017
2018- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
2019 302 conformant loader) will now work correctly in most cases (they
2020 are still subject to the constraints that exist for all code running
2021 from inside a module loaded via a PEP 302 loader and attempting to
2022 perform IO operations based on __file__). Original patch by
2023 Alexander Belopolsky.
2024
2025- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2026 allows backporting to maintenance branches. Original patch by
2027 Alexander Belopolsky.
2028
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002029- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2030 a non-ASCII letter.
2031
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002032- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2033
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002034- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2035 codec cannot be found. This is for compatibility with the builtin behavior.
2036
Facundo Batista708d5812008-12-11 04:20:07 +00002037- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2038 give correct results in the case where one argument is a quiet NaN
2039 and the other is a finite number that requires rounding.
2040
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002041- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2042 libs.
2043
Georg Brandlf9734072008-12-07 15:30:06 +00002044- Added the subprocess.check_call_output() convenience function to get output
2045 from a subprocess on success or raise an exception on error.
2046
2047- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2048 support unusual filenames (such as those containing semi-colons) in
2049 Content-Disposition headers.
2050
2051- Issue #4384: Added logging integration with warnings module using
2052 captureWarnings(). This change includes a NullHandler which does nothing;
2053 it will be of use to library developers who want to avoid the "No handlers
2054 could be found for logger XXX" message which can appear if the library user
2055 doesn't configure logging.
2056
2057- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2058 exception.
2059
Georg Brandleee31162008-12-07 15:15:22 +00002060- Issue #4529: fix the parser module's validation of try-except-finally
2061 statements.
2062
2063- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2064 not a malformed option.
2065
2066- Added the subprocess.check_output() convenience function to get output
2067 from a subprocess on success or raise an exception on error.
2068
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002069- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2070 the corresponding tests now pass.
2071
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002072- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2073 it was calling the wrong open() function.
2074
Fred Drake9a0a65b2008-12-04 19:24:50 +00002075- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2076 support unusual filenames (such as those containing semi-colons) in
2077 Content-Disposition headers.
2078
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002079- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2080 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2081
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002082- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2083 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2084 and getservbyport().
2085
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002086- Windows locale mapping updated to Vista.
2087
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002088Tools/Demos
2089-----------
2090
Antoine Pitrou8a681222009-02-07 17:13:31 +00002091- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2092 and make it 2.6-compatible.
2093
Guilherme Poloa7d27972009-01-28 16:06:51 +00002094- Ttk demos added in Demo/tkinter/ttk/
2095
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002096- Issue #4677: add two list comprehension tests to pybench.
2097
Georg Brandlb1441c72009-01-03 22:33:39 +00002098
2099Build
2100-----
2101
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002102- Issue #6094: Build correctly with Subversion 1.7.
2103
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002104- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2105
Antoine Pitrou8966c992009-05-01 21:18:27 +00002106- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2107 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2108
Matthias Klose55708cc2009-04-30 08:06:49 +00002109- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002110 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002111
Matthias Klose906785c2009-02-22 23:18:38 +00002112- Link the shared python library with $(MODLIBS).
2113
Martin v. Löwis11f72102009-02-10 13:13:30 +00002114- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2115
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002116- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2117
Martin v. Löwise97637d2009-01-11 09:45:11 +00002118- Issue #4895: Use _strdup on Windows CE.
2119
Georg Brandlb1441c72009-01-03 22:33:39 +00002120- Issue #4472: "configure --enable-shared" now works on OSX
2121
2122- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2123
2124- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2125
2126- Issue #4289: Remove Cancel button from AdvancedDlg.
2127
2128- Issue #1656675: Register a drop handler for .py* files on Windows.
2129
2130- Issue #4120: Exclude manifest from extension modules in VS2008.
2131
2132- Issue #4091: Install pythonxy.dll in system32 again.
2133
2134- Issue #4018: Disable "for me" installations on Vista.
2135
2136- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2137
2138- Issue #4204: Fixed module build errors on FreeBSD 4.
2139
2140
2141C-API
2142-----
2143
Mark Dickinson21776072009-02-10 16:13:25 +00002144- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2145 for negative arguments. Previously, it raised TypeError.
2146
Georg Brandlb1441c72009-01-03 22:33:39 +00002147- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2148
2149- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2150 the GIL is released, or owned by another thread.
2151
2152- Issue #4122: On Windows, fix a compilation error when using the
2153 Py_UNICODE_ISSPACE macro in an extension module.
2154
2155
Mark Dickinsone675f082008-12-11 21:56:00 +00002156Extension Modules
2157-----------------
2158
Gregory P. Smith365a1862009-02-12 07:35:29 +00002159- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2160 supporting objects as input no matter how it was compiled (built in
2161 implementations or external openssl library).
2162
Mark Dickinson29500f62009-01-15 15:36:10 +00002163- Issue #4397: Fix occasional test_socket failure on OS X.
2164
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002165- Issue #4279: Fix build of parsermodule under Cygwin.
2166
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002167- Issue #4751: hashlib now releases the GIL when hashing large buffers
2168 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2169 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2170
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002171- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2172
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002173- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2174 or decompress several streams at once on multi-CPU systems. Also, the GIL
2175 is now released when computing the CRC of a large buffer. Patch by ebfe.
2176
Georg Brandlb1441c72009-01-03 22:33:39 +00002177- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2178
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002179- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2180
Mark Dickinsone675f082008-12-11 21:56:00 +00002181- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2182 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002183
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002184- Issue #4583: array.array would not always prohibit resizing when a buffer
2185 has been exported, resulting in an interpreter crash when accessing the
2186 buffer.
2187
Martin v. Löwis841edad2008-11-30 10:36:49 +00002188
Jack Diederiche0cbd692009-04-01 04:27:09 +00002189- Issue #5228: Make functools.partial objects can now be pickled.
2190
Guilherme Polo9de29af2009-01-28 20:40:48 +00002191Tests
2192-----
2193
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002194- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2195 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2196 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2197 skip the tests if DISPLAY is defined but can't be used.
2198
R. David Murraya21e4ca2009-03-31 23:16:50 +00002199- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002200 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002201 from test support, which does the conversion.
2202
Guilherme Polo9de29af2009-01-28 20:40:48 +00002203- Issue #5083: New 'gui' resource for regrtest.
2204
2205
Brett Cannon7317c1e2008-11-25 19:19:17 +00002206Docs
2207----
2208
Georg Brandl52b92cc2008-05-25 09:43:03 +00002209
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002210**(For information about older versions, consult the HISTORY file.)**