Chris wrote:
> Is there a way to make python create a list of Mondays for a given year?
>
> For example,
>
> mondays = ['1/3/2005','1/10/2005','1/17/2005','1/24/2005',
> '1/31/2005','2/7/2005', ... ]
from datetime import date, timedelta
def mondays(year):
'''generate all days that are Mondays in the given year'''
jan1 = date(year, 1, 1)
# find first Monday (which could be this day)
monday = jan1 + timedelta(days=(7-jan1.weekday()) % 7)
while 1:
if monday.year != year:
break
yield monday
monday += timedelta(days=7)
>>> [str(x) for x in mondays(2005)]
['2004-01-05', '2004-01-12', ... '2004-12-27']
Extension to support any day of the week (including renaming the
function!) is left as an exercise to the reader. ;-)
--
Peter
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