Bugs item #1553577, was opened at 2006-09-06 11:11 Message generated for change (Comment added) made by nnorwitz You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1553577&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None Status: Open Resolution: None Priority: 5 Submitted By: Skip Montanaro (montanaro) >Assigned to: Tim Peters (tim_one) Summary: datetime.datetime.now() mangles tzinfo Initial Comment: When using the pytz package (http://pytz.sf.net/) to create timezone info objects datetime.datetime.now() behaves differently than the regular datetime.datetime() contstructor. Here's an example: >>> import pytz >>> info = pytz.timezone("US/Central") >>> info <DstTzInfo 'US/Central' CST-1 day, 18:00:00 STD> >>> import datetime >>> now = datetime.datetime.now(tz=info) >>> now datetime.datetime(2006, 9, 6, 12, 44, 18, 983849, tzinfo=<DstTzInfo 'US/Central' CDT-1 day, 19:00:00 DST>) >>> t2 = datetime.datetime(2006, 9, 6, 12, 44, 18, 983849, tzinfo=info) >>> t2 datetime.datetime(2006, 9, 6, 12, 44, 18, 983849, tzinfo=<DstTzInfo 'US/Central' CST-1 day, 18:00:00 STD>) >>> now.tzinfo == info False >>> t2.tzinfo == info True It appears that datetime.datetime.now() makes an off-by-one-hour copy of the timezone info it was passed. I've reproduced this on 2.4.3 and 2.5c1 as of August 17. (It's also a little annoying that the timezone arg for datetime.datetime.now() is "tz" while the timezone arg for datetime.datetime() is "tzinfo". Is there a good reason for them to be different?) Skip ---------------------------------------------------------------------- >Comment By: Neal Norwitz (nnorwitz) Date: 2006-09-07 00:08 Message: Logged In: YES user_id=33168 Since Tim wrote this code AFAIK, there *had* to be a good reason. :-) ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1553577&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
