This is incomplete, but I want to get some version into the next alpha. I am still working on:
Documentation.
More tests.
Implement for floats.
In addition, there's an existing bug with 'n' formatting that carries forward to thousands grouping (issue 5515).
svn+ssh://pythondev@svn.python.org/python/trunk
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r71031 | brett.cannon | 2009-04-01 20:17:39 -0700 (Wed, 01 Apr 2009) | 6 lines
PyImport_AppendInittab() took a char * as a first argument even though that
string was stored beyond the life of the call. Changed the signature to be
const char * to help make this point.
Closes issue #1419652.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r70546 | antoine.pitrou | 2009-03-23 19:41:45 +0100 (lun., 23 mars 2009) | 9 lines
Issue #4688: Add a heuristic so that tuples and dicts containing only
untrackable objects are not tracked by the garbage collector. This can
reduce the size of collections and therefore the garbage collection overhead
on long-running programs, depending on their particular use of datatypes.
(trivia: this makes the "binary_trees" benchmark from the Computer Language
Shootout 40% faster)
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svn+ssh://pythondev@svn.python.org/python/trunk
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r70489 | mark.dickinson | 2009-03-20 23:16:14 +0000 (Fri, 20 Mar 2009) | 4 lines
Rewrite Py_ARITHMETIC_RIGHT_SHIFT so that it's valid for all signed
integer types T, not just those for which "unsigned T" is legal.
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- new configure option --enable-big-digits
- new structseq sys.int_info giving information about the internal format
By default, 30-bit digits are enabled on 64-bit machines but
disabled on 32-bit machines.
This patch by Antoine Pitrou optimizes the bytecode for conditional branches by
merging the following "POP_TOP" instruction into the conditional jump. For
example, the list comprehension "[x for x in l if not x]" produced the
following bytecode:
1 0 BUILD_LIST 0
3 LOAD_FAST 0 (.0)
>> 6 FOR_ITER 23 (to 32)
9 STORE_FAST 1 (x)
12 LOAD_FAST 1 (x)
15 JUMP_IF_TRUE 10 (to 28)
18 POP_TOP
19 LOAD_FAST 1 (x)
22 LIST_APPEND 2
25 JUMP_ABSOLUTE 6
>> 28 POP_TOP
29 JUMP_ABSOLUTE 6
>> 32 RETURN_VALUE
but after the patch it produces the following bytecode:
1 0 BUILD_LIST 0
3 LOAD_FAST 0 (.0)
>> 6 FOR_ITER 18 (to 27)
9 STORE_FAST 1 (x)
12 LOAD_FAST 1 (x)
15 POP_JUMP_IF_TRUE 6
18 LOAD_FAST 1 (x)
21 LIST_APPEND 2
24 JUMP_ABSOLUTE 6
>> 27 RETURN_VALUE
Notice that not only the code is shorter, but the conditional jump
(POP_JUMP_IF_TRUE) jumps right to the start of the loop instead of going through
the JUMP_ABSOLUTE at the end. "continue" statements are helped
similarly.
Furthermore, the old jump opcodes (JUMP_IF_FALSE, JUMP_IF_TRUE) have been
replaced by two new opcodes:
- JUMP_IF_TRUE_OR_POP, which jumps if true and pops otherwise
- JUMP_IF_FALSE_OR_POP, which jumps if false and pops otherwise
svn+ssh://pythondev@svn.python.org/python/trunk
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r69634 | mark.dickinson | 2009-02-15 10:13:41 +0000 (Sun, 15 Feb 2009) | 6 lines
Issue #5260: Various portability and standards compliance fixes, optimizations
and cleanups in Objects/longobject.c. The most significant change is that
longs now use less memory: average savings are 2 bytes per long on 32-bit
systems and 6 bytes per long on 64-bit systems. (This memory saving already
exists in py3k.)
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svn+ssh://pythondev@svn.python.org/python/trunk
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r69364 | kristjan.jonsson | 2009-02-06 04:17:34 -0600 (Fri, 06 Feb 2009) | 1 line
Fix a number of Win32ErrorTests error cases. chmod wasn't being tested. 'access' never raises an error.
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r69365 | armin.rigo | 2009-02-06 05:46:26 -0600 (Fri, 06 Feb 2009) | 2 lines
Ivan on IRC in #twisted reported this crasher.
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r69409 | georg.brandl | 2009-02-07 06:21:17 -0600 (Sat, 07 Feb 2009) | 1 line
#5174: fix wrong file closing in example.
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r69410 | neil.schemenauer | 2009-02-07 08:53:31 -0600 (Sat, 07 Feb 2009) | 4 lines
Fix broken test in test_hotshot. Treating the current directory as an
empty file is sloppy and non-portable. Use NamedTemporaryFile to make
an empty file.
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r69413 | neil.schemenauer | 2009-02-07 12:35:16 -0600 (Sat, 07 Feb 2009) | 2 lines
Add test for issue #999042, explict global statement works.
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r69417 | benjamin.peterson | 2009-02-07 17:01:19 -0600 (Sat, 07 Feb 2009) | 1 line
document individual 2to3 fixers
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r69435 | benjamin.peterson | 2009-02-08 08:38:13 -0600 (Sun, 08 Feb 2009) | 1 line
document numliterals fixer
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r69442 | benjamin.peterson | 2009-02-08 09:14:57 -0600 (Sun, 08 Feb 2009) | 1 line
a few edits and typos
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r69447 | vinay.sajip | 2009-02-08 13:06:08 -0600 (Sun, 08 Feb 2009) | 2 lines
Issue #5170: Fixed Unicode output bug in logging and added test case. This is a regression which did not occur in 2.5.
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r69495 | kristjan.jonsson | 2009-02-10 07:32:24 -0600 (Tue, 10 Feb 2009) | 1 line
Issue 4804. Add a function to test the validity of file descriptors on Windows, and stop using global runtime settings to silence the warnings / assertions.
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r69519 | gregory.p.smith | 2009-02-11 17:45:25 -0600 (Wed, 11 Feb 2009) | 3 lines
Issue #1008086: Fixes socket.inet_aton() to always return 4 bytes even
on LP64 platforms (most 64-bit Linux, bsd, unix systems).
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r69520 | benjamin.peterson | 2009-02-11 21:50:00 -0600 (Wed, 11 Feb 2009) | 1 line
os.fsync() should be used to ensure that data is written to disk
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r69521 | benjamin.peterson | 2009-02-11 22:17:04 -0600 (Wed, 11 Feb 2009) | 1 line
no need for this __bases__ trick anymore
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svn+ssh://pythondev@svn.python.org/python/trunk
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r69459 | mark.dickinson | 2009-02-09 14:18:43 +0000 (Mon, 09 Feb 2009) | 3 lines
Issue #4575: fix Py_IS_INFINITY macro to work correctly on x87 FPUs.
It now forces its argument to double before testing for infinity.
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