Commit Graph

97 Commits

Author SHA1 Message Date
Victor Stinner 84ff4abd79 Merge 3.4 (datetime rounding) 2015-09-18 14:50:18 +02:00
Victor Stinner 511491ade0 Issue #23517: Fix rounding in fromtimestamp() and utcfromtimestamp() methods
of datetime.datetime: microseconds are now rounded to nearest with ties going
to nearest even integer (ROUND_HALF_EVEN), instead of being rounding towards
zero (ROUND_DOWN). It's important that these methods use the same rounding
mode than datetime.timedelta to keep the property:

   (datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t)

It also the rounding mode used by round(float) for example.

Add more unit tests on the rounding mode in test_datetime.
2015-09-18 14:42:05 +02:00
Victor Stinner cd5d765b0e cleanup datetime code
remove scories of round half up code and debug code.
2015-09-09 01:09:21 +02:00
Victor Stinner 7667f58151 Issue #23517: fromtimestamp() and utcfromtimestamp() methods of
datetime.datetime now round microseconds to nearest with ties going to nearest
even integer (ROUND_HALF_EVEN), as round(float), instead of rounding towards
-Infinity (ROUND_FLOOR).

pytime API: replace _PyTime_ROUND_HALF_UP with _PyTime_ROUND_HALF_EVEN. Fix
also _PyTime_Divide() for negative numbers.

_PyTime_AsTimeval_impl() now reuses _PyTime_Divide() instead of reimplementing
rounding modes.
2015-09-09 01:02:23 +02:00
Victor Stinner 69cc487df4 Revert change 0eb8c182131e:
"""Issue #23517: datetime.timedelta constructor now rounds microseconds to
nearest with ties going away from zero (ROUND_HALF_UP), as Python 2 and Python
older than 3.3, instead of rounding to nearest with ties going to nearest even
integer (ROUND_HALF_EVEN)."""

datetime.timedelta uses rounding mode ROUND_HALF_EVEN again.
2015-09-08 23:58:54 +02:00
Alexander Belopolsky 7827a5b7c2 Closes Issue#22241: timezone.utc name is now plain 'UTC', not 'UTC-00:00'. 2015-09-06 13:07:21 -04:00
Victor Stinner adfefa527a Issue #23517: Fix implementation of the ROUND_HALF_UP rounding mode in
datetime.datetime.fromtimestamp() and datetime.datetime.utcfromtimestamp().
microseconds sign should be kept before rounding.
2015-09-04 23:57:25 +02:00
Victor Stinner 2ec5bd6fb2 Issue #23517: fromtimestamp() and utcfromtimestamp() methods of
datetime.datetime now round microseconds to nearest with ties going away from
zero (ROUND_HALF_UP), as Python 2 and Python older than 3.3, instead of
rounding towards -Infinity (ROUND_FLOOR).
2015-09-03 09:06:44 +02:00
Victor Stinner 2ec558739e Issue #23517: datetime.timedelta constructor now rounds microseconds to nearest
with ties going away from zero (ROUND_HALF_UP), as Python 2 and Python older
than 3.3, instead of rounding to nearest with ties going to nearest even
integer (ROUND_HALF_EVEN).
2015-09-02 19:16:07 +02:00
Serhiy Storchaka c2ccce791c Issue #23641: Cleaned out legacy dunder names from tests and docs.
Fixed 2 to 3 porting bug in pynche.ColorDB.
Added few tests for __truediv__, __floordiv__ and __matmul__.
2015-03-12 22:01:30 +02:00
Serhiy Storchaka a60c2fe480 Issue #23641: Cleaned out legacy dunder names from tests and docs.
Fixed 2 to 3 porting bug in pynche.ColorDB.
2015-03-12 21:56:08 +02:00
Alexander Belopolsky e2e178e081 Closes issue #22791: Improved datetime from timestamp methods documentation.
Original patch by Akira Li.
2015-03-01 14:52:07 -05:00
Alexander Belopolsky 184291aeb7 Fixes #23521: Corrected pure python implementation of timedelta division.
* Eliminated OverflowError from timedelta * float for some floats;
 * Corrected rounding in timedlta true division.
2015-02-28 10:44:47 -05:00
Alexander Belopolsky 24d3deefcf Fixes #23521: Corrected pure python implementation of timedelta division.
* Eliminated OverflowError from timedelta * float for some floats;
 * Corrected rounding in timedlta true division.
2015-02-28 10:41:57 -05:00
Serhiy Storchaka 08448a1f4d Issue #23326: Removed __ne__ implementations. Since fixing default __ne__
implementation in issue #21408 they are redundant.
2015-01-31 12:05:05 +02:00
Alexander Belopolsky 6c7a4182f5 Closes issue #20858: Enhancements/fixes to pure-python datetime module
This patch brings the pure-python datetime more in-line with the C
module.  Patch contributed by Brian Kearns, a PyPy developer.  PyPy
project has been running these modifications in PyPy2 stdlib.

This commit includes:

- General PEP8/cleanups;
- Better testing of argument types passed to constructors;
- Removal of duplicate operations;
- Optimization of timedelta creation;
- Caching the result of __hash__ like the C accelerator;
- Enhancements/bug fixes in tests.
2014-09-28 19:11:56 -04:00
Serhiy Storchaka 465e60e654 Issue #22033: Reprs of most Python implemened classes now contain actual
class name instead of hardcoded one.
2014-07-25 23:36:00 +03:00
Benjamin Peterson ee6bdc07d6 remove the ability of datetime.time to be considered false (closes #13936) 2014-03-20 18:00:35 -05:00
Benjamin Peterson da0bea213d improve comment 2013-08-29 17:29:30 -04:00
Benjamin Peterson f908efb75c make lists uniformly integers for the benefit of pypy 2013-08-29 17:27:57 -04:00
Serhiy Storchaka 46e1ce214b Issue #18783: Removed existing mentions of Python long type in docstrings,
error messages and comments.
2013-08-27 20:17:03 +03:00
Serhiy Storchaka 9594942716 Issue #18783: Removed existing mentions of Python long type in docstrings,
error messages and comments.
2013-08-27 19:40:23 +03:00
Ezio Melotti 9a3777e525 #18705: merge with 3.3. 2013-08-17 15:53:55 +03:00
Ezio Melotti 30b9d5d3af #18705: fix a number of typos. Patch by Févry Thibault. 2013-08-17 15:50:46 +03:00
Brett Cannon cd171c8e92 Issue #18200: Back out usage of ModuleNotFoundError (8d28d44f3a9a) 2013-07-04 17:43:24 -04:00
Brett Cannon 0a140668fa Issue #18200: Update the stdlib (except tests) to use
ModuleNotFoundError.
2013-06-13 20:57:26 -04:00
Ezio Melotti d24abee463 #17571: merge with 3.3. 2013-04-13 20:12:53 +03:00
Ezio Melotti f756f947f9 #17571: remove broken links in datetime.py docstring. 2013-04-13 20:12:38 +03:00
Victor Stinner 765531d2d0 Issue #17516: use comment syntax for comments, instead of multiline string 2013-03-26 01:11:54 +01:00
Georg Brandl 0085a24075 Closes #15973: fix a segmentation fault when comparing timezone objects. 2012-09-22 09:23:12 +02:00
Alexander Belopolsky 93c9cd07b6 Issue #9527: tm_gmtoff has 'correct' sign. 2012-06-22 16:04:19 -04:00
Alexander Belopolsky ff493c9c46 Issue #9527: datetime.astimezone() method will now supply a class
timezone instance corresponding to the system local timezone when
called with no arguments.
2012-06-22 12:25:57 -04:00
Alexander Belopolsky fdc860f310 Issue #9527: datetime.astimezone() method will now supply a class
timezone instance corresponding to the system local timezone when
called with no arguments.
2012-06-22 12:23:23 -04:00
Alexander Belopolsky 0831382d69 Issue #15006: Allow equality comparison between naive and aware time
or datetime objects.
2012-06-15 20:19:47 -04:00
Alexander Belopolsky 016ef551a7 Removed redundant code 2012-06-15 18:15:25 -04:00
Alexander Belopolsky a4415141da Issue #2736: Added datetime.timestamp() method. 2012-06-08 12:33:09 -04:00
Victor Stinner 5d272cc6a2 Close #14180: Factorize code to convert a number of seconds to time_t, timeval or timespec
time.ctime(), gmtime(), time.localtime(), datetime.date.fromtimestamp(),
datetime.datetime.fromtimestamp() and datetime.datetime.utcfromtimestamp() now
raises an OverflowError, instead of a ValueError, if the timestamp does not fit
in time_t.

datetime.datetime.fromtimestamp() and datetime.datetime.utcfromtimestamp() now
round microseconds towards zero instead of rounding to nearest with ties going
away from zero.
2012-03-13 13:35:55 +01:00
Ezio Melotti f10644983e Merge with 3.2. 2011-10-19 11:06:26 +03:00
Ezio Melotti e130a52d8a Remove duplication. 2011-10-19 10:58:56 +03:00
Alexander Belopolsky 89da349b7b Issue #11930: Remove year >= 1000 limitation from datetime.strftime.
Patch by Victor Stinner.
2011-05-02 13:14:24 -04:00
Alexander Belopolsky b6f5ec7370 Issue #11576: Fixed timedelta subtraction glitch on big timedelta values 2011-04-05 20:07:38 -04:00
Alexander Belopolsky b8bb4664fc Issue #1777412: extended year range of strftime down to 1000. 2011-01-08 00:13:34 +00:00
Alexander Belopolsky 1bcbaab15a Issue 9183: Intern UTC timezone. 2010-10-14 17:03:51 +00:00
Alexander Belopolsky 3e62f78c4e Fixed microsecond rounding in python version of utcfromtimestamp 2010-09-21 16:30:56 +00:00
Alexander Belopolsky aeb039863d Make python version of fromtimestamp behave more like C. 2010-07-26 02:36:41 +00:00
Alexander Belopolsky a565874cc1 Use _datetime docstring if _datetime is available. 2010-07-23 20:03:53 +00:00
Alexander Belopolsky cf86e368eb Issue #7989: Added pure python implementation of the datetime module. 2010-07-23 19:25:47 +00:00