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classification
Title: datetime's strftime limits strings to 127 chars
Type: Stage:
Components: Library (Lib) Versions: Python 2.5
process
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: eric.smith, georg.brandl
Priority: normal Keywords:

Created on 2006-09-12 02:43 by eric.smith, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (3)
msg29797 - (view) Author: Eric V. Smith (eric.smith) * (Python committer) Date: 2006-09-12 02:43
[I'm putting this in category Python Library, because I
assume Extensions Modules is for problems in the
Extensions Module plumbing.]


datetime.date and datetime.time's strftime() methods
call wrap_strftime(), which limits the length of the
format string to 127 chars before calling time.strftime().

This can be seen in the examples below.  Note that in
the third example, time.strftime() does not have a
problem with a 128 character format string.


>>> import datetime
>>> datetime.date.today().strftime('x'*128)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
MemoryError


>>> import datetime
>>> datetime.date.today().strftime('x'*256)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
SystemError: Objects/stringobject.c:4077: bad argument
to internal function


>>> import time
>>> time.strftime('x'*128)
'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'


Reproduced on 2.5c1 Linux, 2.4.3 Linux, and 2.3.3 Windows.
msg29798 - (view) Author: Eric V. Smith (eric.smith) * (Python committer) Date: 2006-09-12 22:12
Logged In: YES 
user_id=411198

See patch http://python.org/sf/1557390
msg29799 - (view) Author: Georg Brandl (georg.brandl) * (Python committer) Date: 2006-09-30 11:18
Logged In: YES 
user_id=849994

Thanks for the report, fixed in rev. 52072, 52073 (2.4),
52074 (2.5).
History
Date User Action Args
2022-04-11 14:56:20adminsetgithub: 43962
2006-09-12 02:43:32eric.smithcreate