import calendar
year = 2026
month = 1
# Change the first weekday (default is Monday)
calendar.setfirstweekday(calendar.SUNDAY)
print(calendar.month(year, month))
'''
run:
January 2026
Su Mo Tu We Th Fr Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
'''