How do we determine the number of days for a given month in python
PythonPython Problem Overview
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 any one tell me which library I should use to determine the length of a given month.
Python Solutions
Solution 1 - Python
You should use calendar.monthrange:
>>> 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.
Solution 2 - Python
Alternative solution:
>>> from datetime import date
>>> (date(2012, 3, 1) - date(2012, 2, 1)).days
29
Solution 3 - Python
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