| Commit message (Collapse) | Author | Age | Files | Lines |
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library numeric types (GH-6121)" (GH-22584)
This reverts commit 58a7da9e125422323f79c4ee95ac5549989d8162.
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numeric types (GH-6121)
* bpo-26680: Adds support for int.is_integer() for compatibility with float.is_integer().
The int.is_integer() method always returns True.
* bpo-26680: Adds a test to ensure that False.is_integer() and True.is_integer() are always True.
* bpo-26680: Adds Real.is_integer() with a trivial implementation using conversion to int.
This default implementation is intended to reduce the workload for subclass
implementers. It is not robust in the presence of infinities or NaNs and
may have suboptimal performance for other types.
* bpo-26680: Adds Rational.is_integer which returns True if the denominator is one.
This implementation assumes the Rational is represented in it's
lowest form, as required by the class docstring.
* bpo-26680: Adds Integral.is_integer which always returns True.
* bpo-26680: Adds tests for Fraction.is_integer called as an instance method.
The tests for the Rational abstract base class use an unbound
method to sidestep the inability to directly instantiate Rational.
These tests check that everything works correct as an instance method.
* bpo-26680: Updates documentation for Real.is_integer and built-ins int and float.
The call x.is_integer() is now listed in the table of operations
which apply to all numeric types except complex, with a reference
to the full documentation for Real.is_integer(). Mention of
is_integer() has been removed from the section 'Additional Methods
on Float'.
The documentation for Real.is_integer() describes its purpose, and
mentions that it should be overridden for performance reasons, or
to handle special values like NaN.
* bpo-26680: Adds Decimal.is_integer to the Python and C implementations.
The C implementation of Decimal already implements and uses
mpd_isinteger internally, we just expose the existing function to
Python.
The Python implementation uses internal conversion to integer
using to_integral_value().
In both cases, the corresponding context methods are also
implemented.
Tests and documentation are included.
* bpo-26680: Updates the ACKS file.
* bpo-26680: NEWS entries for int, the numeric ABCs and Decimal.
Co-authored-by: Robert Smallshire <rob@sixty-north.com>
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returned NotImplemented. Removed incorrect implementations of __ne__().
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Thanks to Darren Dale for patch.
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New wording is taken straight from the PEP, so this time should be good
:)
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(forward merge of r68813).
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entry anyway because of the difference in the changes between the two branches)
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svn+ssh://pythondev@svn.python.org/python/trunk
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r61404 | raymond.hettinger | 2008-03-15 21:02:04 +0100 (Sat, 15 Mar 2008) | 17 lines
Removed Exact/Inexact after discussion with Yasskin.
Unlike Scheme where exactness is implemented as taints, the Python
implementation associated exactness with data types. This created
inheritance issues (making an exact subclass of floats would result
in the subclass having both an explicit Exact registration and an
inherited Inexact registration). This was a problem for the
decimal module which was designed to span both exact and inexact
arithmetic. There was also a question of use cases and no examples
were found where ABCs for exactness could be used to improve code.
One other issue was having separate tags for both the affirmative
and negative cases. This is at odds with the approach taken
elsewhere in the Python (i.e. we don't have an ABC both Hashable
and Unhashable).
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r61405 | raymond.hettinger | 2008-03-15 21:37:50 +0100 (Sat, 15 Mar 2008) | 1 line
Zap one more use of Exact/Inexact.
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r61406 | neal.norwitz | 2008-03-15 23:03:18 +0100 (Sat, 15 Mar 2008) | 9 lines
Add a warning for code like:
assert (0, 'message')
An empty tuple does not create a warning. While questionable usage:
assert (), 'message'
should not display a warning. Tested manually.
The warning message could be improved. Feel free to update it.
........
r61407 | neal.norwitz | 2008-03-15 23:36:01 +0100 (Sat, 15 Mar 2008) | 1 line
Handle memory allocation failure. Found by Adam Olsen
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60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60766,60769-60786 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r60752 | mark.dickinson | 2008-02-12 22:31:59 +0100 (Tue, 12 Feb 2008) | 5 lines
Implementation of Fraction.limit_denominator.
Remove Fraction.to_continued_fraction and
Fraction.from_continued_fraction
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r60754 | mark.dickinson | 2008-02-12 22:40:53 +0100 (Tue, 12 Feb 2008) | 3 lines
Revert change in r60712: turn alternate constructors back into
classmethods instead of staticmethods.
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r60755 | mark.dickinson | 2008-02-12 22:46:54 +0100 (Tue, 12 Feb 2008) | 4 lines
Replace R=fractions.Fraction with F=fractions.Fraction in
test_fractions.py. This should have been part of the name
change from Rational to Fraction.
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r60758 | georg.brandl | 2008-02-13 08:20:22 +0100 (Wed, 13 Feb 2008) | 3 lines
#2063: correct order of utime and stime in os.times()
result on Windows.
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r60762 | jeffrey.yasskin | 2008-02-13 18:58:04 +0100 (Wed, 13 Feb 2008) | 7 lines
Working on issue #1762: Brought
./python.exe -m timeit -s 'from fractions import Fraction; f = Fraction(3, 2)' 'isinstance(3, Fraction); isinstance(f, Fraction)'
from 12.3 usec/loop to 3.44 usec/loop and
./python.exe -m timeit -s 'from fractions import Fraction' 'Fraction(3, 2)'
from 48.8 usec to 23.6 usec by avoiding genexps and sets in __instancecheck__
and inlining the common case from __subclasscheck__.
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r60765 | brett.cannon | 2008-02-13 20:15:44 +0100 (Wed, 13 Feb 2008) | 5 lines
Fix --enable-universalsdk and its comment line so that zsh's flag completion
works.
Thanks to Jeroen Ruigrok van der Werven for the fix.
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r60771 | kurt.kaiser | 2008-02-14 01:08:55 +0100 (Thu, 14 Feb 2008) | 2 lines
Bring NEWS.txt up to date from check-in msgs.
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r60772 | raymond.hettinger | 2008-02-14 02:08:02 +0100 (Thu, 14 Feb 2008) | 3 lines
Update notes on Decimal.
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r60773 | raymond.hettinger | 2008-02-14 03:41:22 +0100 (Thu, 14 Feb 2008) | 1 line
Fix decimal repr which should have used single quotes like other reprs.
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r60785 | jeffrey.yasskin | 2008-02-14 07:12:24 +0100 (Thu, 14 Feb 2008) | 11 lines
Performance optimizations on Fraction's constructor.
./python.exe -m timeit -s 'from fractions import Fraction' 'Fraction(3)`
31.7 usec/loop -> 9.2 usec/loop
./python.exe -m timeit -s 'from fractions import Fraction' 'Fraction(3, 2)'`
27.7 usec/loop -> 9.32 usec/loop
./python.exe -m timeit -s 'from fractions import Fraction; f = Fraction(3, 2)' 'Fraction(f)'
31.9 usec/loop -> 14.3 usec/loop
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r60786 | jeffrey.yasskin | 2008-02-14 08:49:25 +0100 (Thu, 14 Feb 2008) | 5 lines
Change simple instances (in Fraction) of self.numerator and self.denominator to
self._numerator and self._denominator. This speeds abs() up from 12.2us to
10.8us and trunc() from 2.07us to 1.11us. This doesn't change _add and friends
because they're more complicated.
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60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60735-60751 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r60735 | raymond.hettinger | 2008-02-11 23:53:01 +0100 (Mon, 11 Feb 2008) | 1 line
Add notes on how decimal fits into the model.
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r60737 | raymond.hettinger | 2008-02-12 00:34:56 +0100 (Tue, 12 Feb 2008) | 1 line
Fix markup
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r60738 | raymond.hettinger | 2008-02-12 00:38:00 +0100 (Tue, 12 Feb 2008) | 1 line
Backport ABC docs
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r60739 | raymond.hettinger | 2008-02-12 01:15:32 +0100 (Tue, 12 Feb 2008) | 1 line
Restore fractions.rst to the document tree.
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r60740 | raymond.hettinger | 2008-02-12 01:48:20 +0100 (Tue, 12 Feb 2008) | 1 line
Fix typo in comments
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r60741 | raymond.hettinger | 2008-02-12 02:18:03 +0100 (Tue, 12 Feb 2008) | 1 line
Bring decimal a bit closer to the spec for Reals.
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r60743 | martin.v.loewis | 2008-02-12 14:47:26 +0100 (Tue, 12 Feb 2008) | 2 lines
Patch #1736: Fix file name handling of _msi.FCICreate.
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r60745 | kurt.kaiser | 2008-02-12 16:45:50 +0100 (Tue, 12 Feb 2008) | 2 lines
what??! Correct r60225.
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r60747 | martin.v.loewis | 2008-02-12 19:47:34 +0100 (Tue, 12 Feb 2008) | 4 lines
Patch #1966: Break infinite loop in httplib when the servers
implements the chunked encoding incorrectly.
Will backport to 2.5.
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r60749 | raymond.hettinger | 2008-02-12 20:05:36 +0100 (Tue, 12 Feb 2008) | 1 line
dict.copy() rises from the ashes. Revert r60687.
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60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617-60678 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r60618 | walter.doerwald | 2008-02-06 15:31:55 +0100 (Wed, 06 Feb 2008) | 6 lines
Remove month parameter from Calendar.yeardatescalendar(),
Calendar.yeardays2calendar() and Calendar.yeardayscalendar() as the methods
don't have such a parameter. Fixes issue #2017.
Rewrap content to 80 chars.
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r60622 | facundo.batista | 2008-02-06 20:28:49 +0100 (Wed, 06 Feb 2008) | 4 lines
Fixes issue 1959. Converted tests to unittest.
Thanks Giampaolo Rodola.
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r60626 | thomas.heller | 2008-02-06 21:29:17 +0100 (Wed, 06 Feb 2008) | 3 lines
Fixed refcounts and error handling.
Should not be merged to py3k branch.
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r60630 | mark.dickinson | 2008-02-06 23:10:50 +0100 (Wed, 06 Feb 2008) | 4 lines
Issue 1979: Make Decimal comparisons (other than !=, ==) involving NaN
raise InvalidOperation (and return False if InvalidOperation is trapped).
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r60632 | mark.dickinson | 2008-02-06 23:25:16 +0100 (Wed, 06 Feb 2008) | 2 lines
Remove incorrect usage of :const: in documentation.
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r60634 | georg.brandl | 2008-02-07 00:45:51 +0100 (Thu, 07 Feb 2008) | 2 lines
Revert accidental changes to test_queue in r60605.
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r60636 | raymond.hettinger | 2008-02-07 01:54:20 +0100 (Thu, 07 Feb 2008) | 1 line
Issue 2025: Add tuple.count() and tuple.index() to follow the ABC in collections.Sequence.
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r60637 | mark.dickinson | 2008-02-07 02:14:23 +0100 (Thu, 07 Feb 2008) | 2 lines
Fix broken link in decimal documentation.
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r60638 | mark.dickinson | 2008-02-07 02:42:06 +0100 (Thu, 07 Feb 2008) | 3 lines
IEEE 754 should be IEEE 854; give precise reference for
comparisons involving NaNs.
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r60639 | raymond.hettinger | 2008-02-07 03:12:52 +0100 (Thu, 07 Feb 2008) | 1 line
Return ints instead of longs for tuple.count() and tuple.index().
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r60640 | raymond.hettinger | 2008-02-07 04:10:33 +0100 (Thu, 07 Feb 2008) | 1 line
Merge 60627.
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r60641 | raymond.hettinger | 2008-02-07 04:25:46 +0100 (Thu, 07 Feb 2008) | 1 line
Merge r60628, r60631, and r60633. Register UserList and UserString will the appropriate ABCs.
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r60642 | brett.cannon | 2008-02-07 08:47:31 +0100 (Thu, 07 Feb 2008) | 3 lines
Cast a struct to a void pointer so as to do a type-safe pointer comparison
(mistmatch found by clang).
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r60643 | brett.cannon | 2008-02-07 09:04:07 +0100 (Thu, 07 Feb 2008) | 2 lines
Remove unnecessary curly braces around an int literal.
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r60644 | andrew.kuchling | 2008-02-07 12:43:47 +0100 (Thu, 07 Feb 2008) | 1 line
Update URL
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r60645 | facundo.batista | 2008-02-07 17:16:29 +0100 (Thu, 07 Feb 2008) | 4 lines
Fixes issue 2026. Tests converted to unittest. Thanks
Giampaolo Rodola.
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r60646 | christian.heimes | 2008-02-07 18:15:30 +0100 (Thu, 07 Feb 2008) | 1 line
Added some statistics code to dict and list object code. I wanted to test how a larger freelist affects the reusage of freed objects. Contrary to my gut feelings 80 objects is more than fine for small apps. I haven't profiled a large app yet.
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r60648 | facundo.batista | 2008-02-07 20:06:52 +0100 (Thu, 07 Feb 2008) | 6 lines
Fixes Issue 1401. When redirected, a possible POST get converted
to GET, so it loses its payload. So, it also must lose the
headers related to the payload (if it has no content any more,
it shouldn't indicate content length and type).
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r60649 | walter.doerwald | 2008-02-07 20:30:22 +0100 (Thu, 07 Feb 2008) | 3 lines
Clarify that the output of TextCalendar.formatmonth() and
TextCalendar.formatyear() for custom instances won't be influenced by calls
to the module global setfirstweekday() function. Fixes #2018.
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r60651 | walter.doerwald | 2008-02-07 20:48:34 +0100 (Thu, 07 Feb 2008) | 3 lines
Fix documentation for Calendar.iterweekdays(): firstweekday is a property.
Fixes second part of #2018.
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r60653 | walter.doerwald | 2008-02-07 20:57:32 +0100 (Thu, 07 Feb 2008) | 2 lines
Fix typo in docstring for Calendar.itermonthdays().
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r60655 | raymond.hettinger | 2008-02-07 21:04:37 +0100 (Thu, 07 Feb 2008) | 1 line
The float conversion recipe is simpler in Py2.6
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r60657 | raymond.hettinger | 2008-02-07 21:10:49 +0100 (Thu, 07 Feb 2008) | 1 line
Fix typo
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r60660 | brett.cannon | 2008-02-07 23:27:10 +0100 (Thu, 07 Feb 2008) | 3 lines
Make sure a switch statement does not have repetitive case statements.
Error found through LLVM post-2.1 svn.
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r60661 | christian.heimes | 2008-02-08 01:11:31 +0100 (Fri, 08 Feb 2008) | 1 line
Deallocate content of the dict free list on interpreter shutdown
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r60662 | christian.heimes | 2008-02-08 01:14:34 +0100 (Fri, 08 Feb 2008) | 1 line
Use prefix decrement
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r60663 | amaury.forgeotdarc | 2008-02-08 01:56:02 +0100 (Fri, 08 Feb 2008) | 5 lines
issue 2045: Infinite recursion when printing a subclass of defaultdict,
if default_factory is set to a bound method.
Will backport.
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r60667 | jeffrey.yasskin | 2008-02-08 07:45:40 +0100 (Fri, 08 Feb 2008) | 2 lines
Oops! 2.6's Rational.__ne__ didn't work.
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r60671 | hyeshik.chang | 2008-02-08 18:10:20 +0100 (Fri, 08 Feb 2008) | 2 lines
Update big5hkscs codec to conform to the HKSCS:2004 revision.
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r60673 | raymond.hettinger | 2008-02-08 23:30:04 +0100 (Fri, 08 Feb 2008) | 4 lines
Remove unnecessary modulo division.
The preceding test guarantees that 0 <= i < len.
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r60674 | raymond.hettinger | 2008-02-09 00:02:27 +0100 (Sat, 09 Feb 2008) | 1 line
Speed-up __iter__() mixin method.
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r60675 | raymond.hettinger | 2008-02-09 00:34:21 +0100 (Sat, 09 Feb 2008) | 1 line
Fill-in missing Set comparisons
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r60677 | raymond.hettinger | 2008-02-09 00:57:06 +0100 (Sat, 09 Feb 2008) | 1 line
Add advice on choosing between DictMixin and MutableMapping
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svn+ssh://pythondev@svn.python.org/python/trunk
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r60441 | christian.heimes | 2008-01-30 12:46:00 +0100 (Wed, 30 Jan 2008) | 1 line
Removed unused var
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r60448 | christian.heimes | 2008-01-30 18:21:22 +0100 (Wed, 30 Jan 2008) | 1 line
Fixed some references leaks in sys.
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r60450 | christian.heimes | 2008-01-30 19:58:29 +0100 (Wed, 30 Jan 2008) | 1 line
The previous change was causing a segfault after multiple calls to Py_Initialize() and Py_Finalize().
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r60463 | raymond.hettinger | 2008-01-30 23:17:31 +0100 (Wed, 30 Jan 2008) | 1 line
Update itertool recipes
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r60464 | christian.heimes | 2008-01-30 23:54:18 +0100 (Wed, 30 Jan 2008) | 1 line
Bug #1234: Fixed semaphore errors on AIX 5.2
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r60469 | raymond.hettinger | 2008-01-31 02:38:15 +0100 (Thu, 31 Jan 2008) | 6 lines
Fix defect in __ixor__ which would get the wrong
answer if the input iterable had a duplicate element
(two calls to toggle() reverse each other). Borrow
the correct code from sets.py.
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r60470 | raymond.hettinger | 2008-01-31 02:42:11 +0100 (Thu, 31 Jan 2008) | 1 line
Missing return
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r60471 | jeffrey.yasskin | 2008-01-31 08:44:11 +0100 (Thu, 31 Jan 2008) | 4 lines
Added more documentation on how mixed-mode arithmetic should be implemented. I
also noticed and fixed a bug in Rational's forward operators (they were
claiming all instances of numbers.Rational instead of just the concrete types).
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py3k (i.e., no __div__) and use py3k functions like math.floor().
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svn+ssh://pythondev@svn.python.org/python/trunk
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r59952 | thomas.heller | 2008-01-14 02:35:28 -0800 (Mon, 14 Jan 2008) | 1 line
Issue 1821: configure libffi for amd64 on FreeeBSD.
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r59953 | andrew.kuchling | 2008-01-14 06:48:43 -0800 (Mon, 14 Jan 2008) | 1 line
Update description of float_info
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r59959 | raymond.hettinger | 2008-01-14 14:58:05 -0800 (Mon, 14 Jan 2008) | 1 line
Fix 1698398: Zipfile.printdir() crashed because the format string expected a tuple object of length six instead of a time.struct_time object.
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r59961 | andrew.kuchling | 2008-01-14 17:29:16 -0800 (Mon, 14 Jan 2008) | 1 line
Typo fixes
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r59962 | andrew.kuchling | 2008-01-14 17:29:44 -0800 (Mon, 14 Jan 2008) | 1 line
Markup fix
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r59963 | andrew.kuchling | 2008-01-14 17:47:32 -0800 (Mon, 14 Jan 2008) | 1 line
Add many items
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r59964 | andrew.kuchling | 2008-01-14 17:55:32 -0800 (Mon, 14 Jan 2008) | 1 line
Repair unfinished sentence
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r59967 | raymond.hettinger | 2008-01-14 19:02:37 -0800 (Mon, 14 Jan 2008) | 5 lines
Issue 1820: structseq objects did not work with the % formatting operator or isinstance(t, tuple).
Orignal patch (without tests) by Leif Walsh.
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r59968 | raymond.hettinger | 2008-01-14 19:07:42 -0800 (Mon, 14 Jan 2008) | 1 line
Tighten the definition of a named tuple.
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r59969 | skip.montanaro | 2008-01-14 19:40:20 -0800 (Mon, 14 Jan 2008) | 3 lines
Better (?) text describing the lack of guarantees provided by qsize(),
empty() and full().
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r59970 | raymond.hettinger | 2008-01-14 21:39:59 -0800 (Mon, 14 Jan 2008) | 1 line
Temporarily revert 59967 until GC can be added.
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r59971 | raymond.hettinger | 2008-01-14 21:46:43 -0800 (Mon, 14 Jan 2008) | 1 line
Small grammar nit
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r59972 | georg.brandl | 2008-01-14 22:55:56 -0800 (Mon, 14 Jan 2008) | 2 lines
Typo.
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r59973 | georg.brandl | 2008-01-14 22:58:15 -0800 (Mon, 14 Jan 2008) | 2 lines
Remove duplicate entry.
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r59974 | jeffrey.yasskin | 2008-01-14 23:46:24 -0800 (Mon, 14 Jan 2008) | 12 lines
Add rational.Rational as an implementation of numbers.Rational with infinite
precision. This has been discussed at http://bugs.python.org/issue1682. It's
useful primarily for teaching, but it also demonstrates how to implement a
member of the numeric tower, including fallbacks for mixed-mode arithmetic.
I expect to write a couple more patches in this area:
* Rational.from_decimal()
* Rational.trim/approximate() (maybe with different names)
* Maybe remove the parentheses from Rational.__str__()
* Maybe rename one of the Rational classes
* Maybe make Rational('3/2') work.
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r59978 | andrew.kuchling | 2008-01-15 06:38:05 -0800 (Tue, 15 Jan 2008) | 8 lines
Restore description of sys.dont_write_bytecode.
The duplication is intentional -- this paragraph is in a section
describing additions to the sys module, and there's a later section
that mentions the switch. I think most people scan the what's-new and
don't read it in detail, so a bit of duplication is OK.
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r59984 | guido.van.rossum | 2008-01-15 09:59:29 -0800 (Tue, 15 Jan 2008) | 3 lines
Issue #1786 (by myself): pdb should use its own stdin/stdout around an
exec call and when creating a recursive instance.
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the promotion to complex on pow(negative, fraction).
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of town, and it will have to do for now.
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