blob: 65458d03ec1f61e9ec67e84e56e01b44cd3faa79 [file] [log] [blame]
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Barry Warsaw97f005d2008-12-03 16:46:14 +00007What's New in Python 3.1 alpha 0
8================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00009
10*Release date: XX-XXX-2008*
11
12Core and Builtins
13-----------------
14
Mark Dickinsonfd24b322008-12-06 15:33:31 +000015- Issue #4445: Replace "sizeof(PyBytesObject)" with
16 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
17 bytes instances. On a typical machine this saves 3 bytes of memory
18 (on average) per allocation of a bytes instance.
19
Christian Heimesa872de52008-12-05 08:26:55 +000020- Issue #4533: File read operation was dreadfully slow due to a slowly
21 growing read buffer. Fixed by using the same growth rate algorithm as
22 Python 2.x.
23
Antoine Pitrou5504e892008-12-06 21:27:53 +000024- Issue #4509: Various issues surrounding resize of bytearray objects to
25 which there are buffer exports (e.g. memoryview instances).
26
Georg Brandlf9734072008-12-07 15:30:06 +000027- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
28 method on file objects with closefd=False. The file descriptor is still
29 kept open but the file object behaves like a closed file. The ``FileIO``
30 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +000031
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000032Library
33-------
34
Skip Montanaroc1ce2862008-12-06 17:25:02 +000035- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
36 libs.
37
Georg Brandlf9734072008-12-07 15:30:06 +000038- Added the subprocess.check_call_output() convenience function to get output
39 from a subprocess on success or raise an exception on error.
40
41- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
42 support unusual filenames (such as those containing semi-colons) in
43 Content-Disposition headers.
44
45- Issue #4384: Added logging integration with warnings module using
46 captureWarnings(). This change includes a NullHandler which does nothing;
47 it will be of use to library developers who want to avoid the "No handlers
48 could be found for logger XXX" message which can appear if the library user
49 doesn't configure logging.
50
51- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
52 exception.
53
Georg Brandleee31162008-12-07 15:15:22 +000054- Issue #4529: fix the parser module's validation of try-except-finally
55 statements.
56
57- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
58 not a malformed option.
59
60- Added the subprocess.check_output() convenience function to get output
61 from a subprocess on success or raise an exception on error.
62
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +000063- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
64 the corresponding tests now pass.
65
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +000066- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
67 it was calling the wrong open() function.
68
Fred Drake9a0a65b2008-12-04 19:24:50 +000069- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
70 support unusual filenames (such as those containing semi-colons) in
71 Content-Disposition headers.
72
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +000073
Martin v. Löwis841edad2008-11-30 10:36:49 +000074Build
75-----
76
Martin v. Löwis841edad2008-11-30 10:36:49 +000077
Brett Cannon7317c1e2008-11-25 19:19:17 +000078Docs
79----
80
Georg Brandl52b92cc2008-05-25 09:43:03 +000081
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +000082**(For information about older versions, consult the HISTORY file.)**