Python: Find the number of days in a month

To figure out the month range, you can use a built-in function from the calendar library.

from calendar import monthrange

range = monthrange(year, month)
(4, 31)

The result will be a tuple, the first value containing the index of the first day of the month and second value holding the number of days in the month.

*update 31/05/2011*

The first value is used to know what day of the week the first day of the month is.

• 0 = Monday
• 1 = Tuesday
• 3 = Wednesday
• ...
• 6 = Sunday

It will correspond with the values in the "calendar" library.

calendar.MONDAY = 0, calendar.SUNDAY = 6

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