Bugs item #1496315, was opened at 2006-05-28 02:26
Message generated for change (Comment added) made by bcannon
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Category: Python Library
Group: Python 2.4
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Markus Gritsch (markus_gritsch)
Assigned to: Brett Cannon (bcannon)
Summary: strptime: wrong default values used to fill in missing data
Initial Comment:
The documentation of strptime() says: """The default
values used to fill in any missing data are (1900, 1,
1, 0, 0, 0, 0, 1, -1)""". As the example below shows,
this is not the case.
Python 2.4.3 (#69, Mar 29 2006, 17:35:34) [MSC v.1310
32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for
more information.
>>> import time
>>> time.strptime('', '')
(1900, 1, 1, 0, 0, 0, 0, 1, -1)
>>> time.strptime('2006', '%Y')
(2006, 1, 1, 0, 0, 0, 6, 1, -1)
>>> time.strptime('2006-05', '%Y-%m')
(2006, 5, 1, 0, 0, 0, 0, 121, -1)
>>> time.strptime('2006-05-26', '%Y-%m-%d')
(2006, 5, 26, 0, 0, 0, 4, 146, -1)
>>> time.strptime('2006-05-26 21', '%Y-%m-%d %H')
(2006, 5, 26, 21, 0, 0, 4, 146, -1)
>>> time.strptime('2006-05-26 21:06', '%Y-%m-%d %H:%M')
(2006, 5, 26, 21, 6, 0, 4, 146, -1)
>>> time.strptime('2006-05-26 21:06:11', '%Y-%m-%d
%H:%M:%S')
(2006, 5, 26, 21, 6, 11, 4, 146, -1)
----------------------------------------------------------------------
>Comment By: Brett Cannon (bcannon)
Date: 2006-05-30 19:22
Message:
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user_id=357491
Rev. 46569 has more clear wording for HEAD and rev. 46570
has it for 2.4 .
----------------------------------------------------------------------
Comment By: Brett Cannon (bcannon)
Date: 2006-05-28 11:29
Message:
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The docs need to be fixed to say those are the default
values except when strptime() can infer better ones. There
is a lot of smarts in the algorithm that do calculations to
fill in missing data as best as possible, and that is what
is happening here.
Thanks for the bug report. I will try to fix this some time
this week.
----------------------------------------------------------------------
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