On 2008-08-07 20:40, Robert Latest wrote:
Here's what happens on my Windows machine (Win XP / Cygwin) at work.
I've googled a bit about this problem but only found references to
instances where people referred to dates before the Epoch.
Of course at home on my Linux box everything works.
I know that everything has its limits somewhere, but I've never
heard of March 2008 being a problem.
Tomorrow I'm going to write a test loop that shows me the exact last
second that mktime is going to be able to handle. Sort of like the way
Calvin's father explains the weight limit specification of bridges.
I wonder if the datetime module is any better, considering that under
the hood it probably uses the same C library functions.
I like to stick with the "seconds since..." approach because I need to
store millions of dates/times efficiently in a sqlite database.
$ python
Python 2.5.1 (r251:54863, May 18 2007, 16:56:43)
[GCC 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)] on cygwin
Type "help", "copyright", "credits" or "license" for more information.
import time
t = time.strptime("Mar 30, 2007 2:43:32 am", "%b %d, %Y %I:%M:%S
%p")
time.mktime(t)
1175215412.0
t = time.strptime("Mar 30, 2008 2:43:32 am", "%b %d, %Y %I:%M:%S
%p")
time.mktime(t)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OverflowError: mktime argument out of range
Well, you could use the parser in mxDateTime:
>>> from mx.DateTime import DateTimeFrom
>>> DateTimeFrom("Mar 30, 2007 2:43:32 am")
<mx.DateTime.DateTime object for '2007-03-30 02:43:32.00' at 2b41dd704d40>
>>> DateTimeFrom("Mar 30, 2008 2:43:32 am")
<mx.DateTime.DateTime object for '2008-03-30 02:43:32.00' at 2b41ddd397c0>
>>> DateTimeFrom("Mar 30, 2007 2:43:32 am").ticks()
1175215412.0
>>> DateTimeFrom("Mar 30, 2008 2:43:32 am").ticks()
1206841412.0
http://www.egenix.com/products/python/mxBase/mxDateTime/
--
Marc-Andre Lemburg
eGenix.com
Professional Python Services directly from the Source (#1, Aug 07 2008)
>>> Python/Zope Consulting and Support ... http://www.egenix.com/
>>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/
>>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/
________________________________________________________________________
:::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! ::::
eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48
D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg
Registered at Amtsgericht Duesseldorf: HRB 46611
--
http://mail.python.org/mailman/listinfo/python-list
