string <-> float conversion routines to make round(x, n) correctly
rounded for floats x, so that it always agrees with format(x, '.<n>f').
Also fix some other round nuisances, like round(123.456, 1-2**31) giving
an integer rather than a float.
Addresses the float -> string conversion, using David Gay's code which
was added in Mark Dickinson's checkin r71663.
Also addresses these, which are intertwined with the short repr
changes:
- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'
- Issue #5515: 'n' formatting with commas no longer works poorly
with leading zeros.
- PEP 378 Format Specifier for Thousands Separator: implemented
for floats.
svn+ssh://pythondev@svn.python.org/python/trunk
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r71548 | eric.smith | 2009-04-12 20:29:50 -0400 (Sun, 12 Apr 2009) | 1 line
Fixed incorrect object passed into format_float_internal(). This was resulting in a conversion being done twice.
........
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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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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r70542 | mark.dickinson | 2009-03-23 18:25:13 +0000 (Mon, 23 Mar 2009) | 14 lines
Issue #5512: speed up the long division algorithm for Python longs.
The basic algorithm remains the same; the most significant speedups
come from the following three changes:
(1) normalize by shifting instead of multiplying and dividing
(2) the old algorithm usually did an unnecessary extra iteration of
the outer loop; remove this. As a special case, this means that
long divisions with a single-digit result run twice as fast as
before.
(3) make inner loop much tighter.
Various benchmarks show speedups of between 50% and 150% for long
integer divisions and modulo operations.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r70342 | georg.brandl | 2009-03-13 14:03:58 -0500 (Fri, 13 Mar 2009) | 1 line
#5486: typos.
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r70385 | benjamin.peterson | 2009-03-15 09:38:55 -0500 (Sun, 15 Mar 2009) | 1 line
fix tuple.index() error message #5495
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r70386 | georg.brandl | 2009-03-15 16:32:06 -0500 (Sun, 15 Mar 2009) | 1 line
#5496: fix docstring of lookup().
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r70387 | georg.brandl | 2009-03-15 16:37:16 -0500 (Sun, 15 Mar 2009) | 1 line
#5493: clarify __nonzero__ docs.
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r70389 | georg.brandl | 2009-03-15 16:43:38 -0500 (Sun, 15 Mar 2009) | 1 line
Fix a small nit in the error message if bool() falls back on __len__ and it returns the wrong type: it would tell the user that __nonzero__ should return bool or int.
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r70390 | georg.brandl | 2009-03-15 16:44:43 -0500 (Sun, 15 Mar 2009) | 1 line
#5491: clarify nested() semantics.
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r70392 | georg.brandl | 2009-03-15 16:46:00 -0500 (Sun, 15 Mar 2009) | 1 line
#5488: add missing struct member.
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r70393 | georg.brandl | 2009-03-15 16:47:42 -0500 (Sun, 15 Mar 2009) | 1 line
#5478: fix copy-paste oversight in function signature.
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r70395 | georg.brandl | 2009-03-15 16:51:48 -0500 (Sun, 15 Mar 2009) | 1 line
#5276: document IDLESTARTUP and .Idle.py.
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r70400 | georg.brandl | 2009-03-15 16:59:37 -0500 (Sun, 15 Mar 2009) | 3 lines
Fix markup in re docs and give a mail address in regex howto, so that
the recommendation to send suggestions to the author can be followed.
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r70405 | georg.brandl | 2009-03-15 17:11:07 -0500 (Sun, 15 Mar 2009) | 7 lines
Move the previously local import of threading to module level.
This is cleaner and avoids lockups in obscure cases where a Queue
is instantiated while the import lock is already held by another thread.
OKed by Tim Peters.
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r70406 | hirokazu.yamamoto | 2009-03-15 17:43:14 -0500 (Sun, 15 Mar 2009) | 1 line
Added skip for old MSVC.
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r70418 | georg.brandl | 2009-03-16 14:42:03 -0500 (Mon, 16 Mar 2009) | 1 line
Add token markup.
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r70438 | benjamin.peterson | 2009-03-17 15:29:51 -0500 (Tue, 17 Mar 2009) | 1 line
I thought this was begging for an example
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r70464 | benjamin.peterson | 2009-03-18 15:58:09 -0500 (Wed, 18 Mar 2009) | 1 line
a much better example
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r70468 | benjamin.peterson | 2009-03-18 22:04:31 -0500 (Wed, 18 Mar 2009) | 1 line
close files after comparing them
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svn+ssh://pythondev@svn.python.org/python/trunk
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r70499 | hirokazu.yamamoto | 2009-03-21 19:32:52 +0900 | 1 line
There is no macro named SIZEOF_SSIZE_T. Should use SIZEOF_SIZE_T instead.
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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.
sizeof(Py_UNICODE) == 2, PyUnicode_FromWideChar now converts
each character outside the BMP to the appropriate surrogate pair.
Thanks Victor Stinner for the patch.
svn+ssh://pythondev@svn.python.org/python/trunk
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r70364 | eric.smith | 2009-03-14 07:57:26 -0400 (Sat, 14 Mar 2009) | 17 lines
Issue 5237, Allow auto-numbered replacement fields in str.format() strings.
For simple uses for str.format(), this makes the typing easier. Hopfully this
will help in the adoption of str.format().
For example:
'The {} is {}'.format('sky', 'blue')
You can mix and matcth auto-numbering and named replacement fields:
'The {} is {color}'.format('sky', color='blue')
But you can't mix and match auto-numbering and specified numbering:
'The {0} is {}'.format('sky', 'blue')
ValueError: cannot switch from manual field specification to automatic field numbering
Will port to 3.1.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r69806 | eric.smith | 2009-02-20 09:02:36 -0500 (Fri, 20 Feb 2009) | 1 line
Issue #5247: Improve error message when unknown format codes are used when using str.format() with str, int, and float arguments.
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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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r69436 | mark.dickinson | 2009-02-08 14:42:28 +0000 (Sun, 08 Feb 2009) | 10 lines
Issue #789290: make sure that hash(2**63) == hash(2.**63) on 64-bit
platforms. The previous code was fragile, depending on the twin
accidents that:
(1) in C, casting the double value 2.**63 to long returns the integer
value -2**63, and
(2) in Python, hash(-2**63) == hash(2**63).
There's already a test for this in test_hash.
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from object.h; don't inherit tp_compare slot on subclasses; and raise TypeError
when initializing a type that has a nonzero tp_compare slot. Fix up
comparison-related comments in object.c and code.h.
