how to use calendar with user option dates in python code example

Example 1: how to make sun as first day in calendar python

import calendar

# to set the first weekday to SUNDAY.
calendar.setfirstweekday(calendar.SUNDAY)
print(calendar.month(2020, 10 ))

Example 2: python calendar

import calendar
yio = int(input('Input a month'))
s = int(input('Input a year'))
print(calendar.month(s,yio))