I need to calculate the number of days for a given month in python. If a user inputs Feb 2011 the program should be able to tell me that Feb 2011 has 28 days. Could anyone tell me which library I should use to determine the length of a given month?
You should use
>>> from calendar import monthrange >>> monthrange(2011, 2) (1, 28)
Just to be clear,
monthrange supports leap years as well:
>>> from calendar import monthrange >>> monthrange(2012, 2) (2, 29)
As @mikhail-pyrev mentions in a comment:
First number is the weekday of the first day of the month, the second number is the number of days in said month.
>>> from datetime import date >>> (date(2012, 3, 1) - date(2012, 2, 1)).days 29
Just for the sake of academic interest, I did it this way…
(dt.replace(month = dt.month % 12 +1, day = 1)-timedelta(days=1)).day