Commit Graph

21 Commits

Author SHA1 Message Date
Raymond Hettinger 4e0ce82058
Revert "bpo-26680: Incorporate is_integer in all built-in and standard library numeric types (GH-6121)" (GH-22584)
This reverts commit 58a7da9e12.
2020-10-07 16:43:44 -07:00
Robert Smallshire 58a7da9e12
bpo-26680: Incorporate is_integer in all built-in and standard library 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>
2020-10-01 17:30:08 +01:00
luzpaz a5293b4ff2 Fix miscellaneous typos (#4275) 2017-11-05 15:37:50 +02:00
Serhiy Storchaka f4b7a02e93 Issue #21408: The default __ne__() now returns NotImplemented if __eq__()
returned NotImplemented.  Removed incorrect implementations of __ne__().
2015-01-26 09:57:07 +02:00
Benjamin Peterson bfebb7b54a improve abstract property support (closes #11610)
Thanks to Darren Dale for patch.
2011-12-15 15:34:02 -05:00
Éric Araujo e2544bc909 Fix incorrect docstring I changed a while back.
New wording is taken straight from the PEP, so this time should be good
:)
2011-11-03 04:34:09 +01:00
Raymond Hettinger 219c300748 Remove the funky function annotation from numbers.py. 2011-01-12 20:52:39 +00:00
Benjamin Peterson 5793e6f4b0 fix docstring 2010-12-23 22:17:42 +00:00
Éric Araujo d699255b42 Fix small inaccuracy: there is no index function 2010-12-23 18:41:33 +00:00
Mark Dickinson c28ad27dbb Issue 4998: restore utility of __slots__ on Fraction.
(forward merge of r68813).
2009-02-12 17:58:36 +00:00
Nick Coghlan 36f4952404 Forward port only Py3k relevant change in r65642 (giving it a Py3k NEWS entry anyway because of the difference in the changes between the two branches) 2008-08-18 12:31:52 +00:00
Christian Heimes 08976cb696 Merged revisions 61404-61407 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  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).
........
  r61405 | raymond.hettinger | 2008-03-15 21:37:50 +0100 (Sat, 15 Mar 2008) | 1 line

  Zap one more use of Exact/Inexact.
........
  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
........
2008-03-16 00:32:36 +00:00
Christian Heimes 68f5fbe944 Merged revisions 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

........
  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
........
  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.
........
  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.
........
  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.
........
  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__.
........
  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.
........
  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.
........
  r60772 | raymond.hettinger | 2008-02-14 02:08:02 +0100 (Thu, 14 Feb 2008) | 3 lines

  Update notes on Decimal.
........
  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.
........
  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
........
  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.
........
2008-02-14 08:27:37 +00:00
Christian Heimes 0bd4e11887 Merged revisions 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

........
  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.
........
  r60737 | raymond.hettinger | 2008-02-12 00:34:56 +0100 (Tue, 12 Feb 2008) | 1 line

  Fix markup
........
  r60738 | raymond.hettinger | 2008-02-12 00:38:00 +0100 (Tue, 12 Feb 2008) | 1 line

  Backport ABC docs
........
  r60739 | raymond.hettinger | 2008-02-12 01:15:32 +0100 (Tue, 12 Feb 2008) | 1 line

  Restore fractions.rst to the document tree.
........
  r60740 | raymond.hettinger | 2008-02-12 01:48:20 +0100 (Tue, 12 Feb 2008) | 1 line

  Fix typo in comments
........
  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.
........
  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.
........
  r60745 | kurt.kaiser | 2008-02-12 16:45:50 +0100 (Tue, 12 Feb 2008) | 2 lines

  what??! Correct r60225.
........
  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.
........
  r60749 | raymond.hettinger | 2008-02-12 20:05:36 +0100 (Tue, 12 Feb 2008) | 1 line

  dict.copy() rises from the ashes.  Revert r60687.
........
2008-02-12 22:59:25 +00:00
Christian Heimes 77c02ebf38 Merged revisions 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

........
  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.
........
  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.
........
  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.
........
  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).
........
  r60632 | mark.dickinson | 2008-02-06 23:25:16 +0100 (Wed, 06 Feb 2008) | 2 lines

  Remove incorrect usage of :const: in documentation.
........
  r60634 | georg.brandl | 2008-02-07 00:45:51 +0100 (Thu, 07 Feb 2008) | 2 lines

  Revert accidental changes to test_queue in r60605.
........
  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.
........
  r60637 | mark.dickinson | 2008-02-07 02:14:23 +0100 (Thu, 07 Feb 2008) | 2 lines

  Fix broken link in decimal documentation.
........
  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.
........
  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().
........
  r60640 | raymond.hettinger | 2008-02-07 04:10:33 +0100 (Thu, 07 Feb 2008) | 1 line

  Merge 60627.
........
  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.
........
  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).
........
  r60643 | brett.cannon | 2008-02-07 09:04:07 +0100 (Thu, 07 Feb 2008) | 2 lines

  Remove unnecessary curly braces around an int literal.
........
  r60644 | andrew.kuchling | 2008-02-07 12:43:47 +0100 (Thu, 07 Feb 2008) | 1 line

  Update URL
........
  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.
........
  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.
........
  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).
........
  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.
........
  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.
........
  r60653 | walter.doerwald | 2008-02-07 20:57:32 +0100 (Thu, 07 Feb 2008) | 2 lines

  Fix typo in docstring for Calendar.itermonthdays().
........
  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
........
  r60657 | raymond.hettinger | 2008-02-07 21:10:49 +0100 (Thu, 07 Feb 2008) | 1 line

  Fix typo
........
  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.
........
  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
........
  r60662 | christian.heimes | 2008-02-08 01:14:34 +0100 (Fri, 08 Feb 2008) | 1 line

  Use prefix decrement
........
  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.
........
  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.
........
  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.
........
  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.
........
  r60674 | raymond.hettinger | 2008-02-09 00:02:27 +0100 (Sat, 09 Feb 2008) | 1 line

  Speed-up __iter__() mixin method.
........
  r60675 | raymond.hettinger | 2008-02-09 00:34:21 +0100 (Sat, 09 Feb 2008) | 1 line

  Fill-in missing Set comparisons
........
  r60677 | raymond.hettinger | 2008-02-09 00:57:06 +0100 (Sat, 09 Feb 2008) | 1 line

  Add advice on choosing between DictMixin and MutableMapping
........
2008-02-09 02:18:51 +00:00
Christian Heimes 7b3ce6a17e Merged revisions 60441-60474 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r60441 | christian.heimes | 2008-01-30 12:46:00 +0100 (Wed, 30 Jan 2008) | 1 line

  Removed unused var
........
  r60448 | christian.heimes | 2008-01-30 18:21:22 +0100 (Wed, 30 Jan 2008) | 1 line

  Fixed some references leaks in sys.
........
  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().
........
  r60463 | raymond.hettinger | 2008-01-30 23:17:31 +0100 (Wed, 30 Jan 2008) | 1 line

  Update itertool recipes
........
  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
........
  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.
........
  r60470 | raymond.hettinger | 2008-01-31 02:42:11 +0100 (Thu, 31 Jan 2008) | 1 line

  Missing return
........
  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).
........
2008-01-31 14:31:45 +00:00
Jeffrey Yasskin 9893de1b83 Update the py3k version of the rational module to expose only methods needed by
py3k (i.e., no __div__) and use py3k functions like math.floor().
2008-01-17 07:36:30 +00:00
Guido van Rossum 7736b5becd Merged revisions 59952-59984 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r59952 | thomas.heller | 2008-01-14 02:35:28 -0800 (Mon, 14 Jan 2008) | 1 line

  Issue 1821: configure libffi for amd64 on FreeeBSD.
........
  r59953 | andrew.kuchling | 2008-01-14 06:48:43 -0800 (Mon, 14 Jan 2008) | 1 line

  Update description of float_info
........
  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.
........
  r59961 | andrew.kuchling | 2008-01-14 17:29:16 -0800 (Mon, 14 Jan 2008) | 1 line

  Typo fixes
........
  r59962 | andrew.kuchling | 2008-01-14 17:29:44 -0800 (Mon, 14 Jan 2008) | 1 line

  Markup fix
........
  r59963 | andrew.kuchling | 2008-01-14 17:47:32 -0800 (Mon, 14 Jan 2008) | 1 line

  Add many items
........
  r59964 | andrew.kuchling | 2008-01-14 17:55:32 -0800 (Mon, 14 Jan 2008) | 1 line

  Repair unfinished sentence
........
  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.
........
  r59968 | raymond.hettinger | 2008-01-14 19:07:42 -0800 (Mon, 14 Jan 2008) | 1 line

  Tighten the definition of a named tuple.
........
  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().
........
  r59970 | raymond.hettinger | 2008-01-14 21:39:59 -0800 (Mon, 14 Jan 2008) | 1 line

  Temporarily revert 59967 until GC can be added.
........
  r59971 | raymond.hettinger | 2008-01-14 21:46:43 -0800 (Mon, 14 Jan 2008) | 1 line

  Small grammar nit
........
  r59972 | georg.brandl | 2008-01-14 22:55:56 -0800 (Mon, 14 Jan 2008) | 2 lines

  Typo.
........
  r59973 | georg.brandl | 2008-01-14 22:58:15 -0800 (Mon, 14 Jan 2008) | 2 lines

  Remove duplicate entry.
........
  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.
........
  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.
........
  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.
........
2008-01-15 21:44:53 +00:00
Guido van Rossum d425630255 Small set of updates (with Jeffrey's OK). 2007-12-06 17:45:33 +00:00
Jeffrey Yasskin 3404b3ce2a Check in some documentation tweaks for PEP 3141, add some tests, and implement
the promotion to complex on pow(negative, fraction).
2007-09-07 15:15:49 +00:00
Guido van Rossum 1daf954dcf Add numbers.py. I suspect this is an old version, but Jeffrey is out
of town, and it will have to do for now.
2007-08-30 17:45:54 +00:00