[egenix-users] week of year
mal at lemburg.com
Mon May 27 12:28:50 CEST 2002
Dirk Holtwick wrote:
> I noticed some strange behaviour with values for "week of year" with
> mx.DateTime. I use something like this in my program:
> Date(year, month, w).strftime("%W")
> e.g.: Date(2002,5,1).strftime("%W") gives 17 as result. In my german
> calendar it should be 18, so I add 1. But
> Date(2001,5,1).strftime("%W") gives 18 and in my calendar its also 18 so
> adding +1 dosn't work here. what can I do? I use Date(2001,5,1).iso_week
> and Date(2002,5,1).iso_week that works. But shouldn't it also work
> with the method described above?
The .strftime() method interfaces directly to the C lib's
strftime() API, so if that implementation uses a non-ISO
week number calculation, then you see different results.
%W The week number of the current year as a decimal number, range
00 to 53, starting with the first Monday as the first day of
This is clearly not ISO (which is much more complicated) !
CEO eGenix.com Software GmbH
Company & Consulting: http://www.egenix.com/
Python Software: http://www.egenix.com/files/python/
More information about the egenix-users