How to get the number of days in a month

In [1]:

import calendar

In [2]:

help(calendar.monthrange)

Help on function monthrange in module calendar:

monthrange(year, month)
    Return weekday (0-6 ~ Mon-Sun) and number of days (28-31) for
    year, month.

In [3]:

"""
This returns a tuple.
the first item in the tuple is the weekday that
the month starts on and the second item is the
number of days in the month.
"""
calendar.monthrange(2014,12)

Out[3]:

(0, 31)

In [4]:

#select the second item in the tuple only
#i.e. the number of days in the month
calendar.monthrange(2014,12)[1]

Out[4]:

31

In [5]:

#another example, using November
calendar.monthrange(2014,11)[1]

Out[5]:

30

In [6]:

#another example, using October
calendar.monthrange(2014,10)[1]

Out[6]:

31