What is Calendar Module in Python

The Calendar module in Python is used to display calendars and provides useful Built-in functions for displaying week, week day, month, month of the year, and other operations. By default, these calendars have Monday as the first day of the week, and Sunday as the last.

Display the Calendar of an Year

To display the calendar of an year, use the calendar() method and set year as the parameter ?

Example

import calendar

# Set the year
year = 2022

# Display the calendar
print(calendar.calendar(year))

Output

                                  2022

      January                   February                   March
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
                1  2          1  2  3  4  5  6          1  2  3  4  5  6
 3  4  5  6  7  8  9       7  8  9 10 11 12 13       7  8  9 10 11 12 13
10 11 12 13 14 15 16      14 15 16 17 18 19 20      14 15 16 17 18 19 20
17 18 19 20 21 22 23      21 22 23 24 25 26 27      21 22 23 24 25 26 27
24 25 26 27 28 29 30      28                        28 29 30 31
31

       April                      May                       June
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
             1  2  3                         1             1  2  3  4  5
 4  5  6  7  8  9 10       2  3  4  5  6  7  8       6  7  8  9 10 11 12
11 12 13 14 15 16 17       9 10 11 12 13 14 15      13 14 15 16 17 18 19
18 19 20 21 22 23 24      16 17 18 19 20 21 22      20 21 22 23 24 25 26
25 26 27 28 29 30         23 24 25 26 27 28 29      27 28 29 30
                          30 31

        July                     August                  September
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
             1  2  3       1  2  3  4  5  6  7                1  2  3  4
 4  5  6  7  8  9 10       8  9 10 11 12 13 14       5  6  7  8  9 10 11
11 12 13 14 15 16 17      15 16 17 18 19 20 21      12 13 14 15 16 17 18
18 19 20 21 22 23 24      22 23 24 25 26 27 28      19 20 21 22 23 24 25
25 26 27 28 29 30 31      29 30 31                  26 27 28 29 30

      October                   November                  December
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
                1  2          1  2  3  4  5  6                1  2  3  4
 3  4  5  6  7  8  9       7  8  9 10 11 12 13       5  6  7  8  9 10 11
10 11 12 13 14 15 16      14 15 16 17 18 19 20      12 13 14 15 16 17 18
17 18 19 20 21 22 23      21 22 23 24 25 26 27      19 20 21 22 23 24 25
24 25 26 27 28 29 30      28 29 30                  26 27 28 29 30 31
31

Display the Month of a Calendar

To display the month of a calendar, use the calendar() method and set month as the parameter ?

Example

import calendar

# Displays August month calendar
print(calendar.month(2022,8))

Output

    August 2022
Mo Tu We Th Fr Sa Su
 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

Get the Weekday number

To get the weekday number, use the calendar.dayname i.e. for Monday, calendar.MONDAY, for Tuesday, calendar.TUESDAY, etc ?

Example

import calendar

print(f'Monday Weekday Number: {calendar.MONDAY}')
print(f'Tuesday Weekday Number: {calendar.TUESDAY}')
print(f'Wednesday Weekday Number: {calendar.WEDNESDAY}')
print(f'Thursday Weekday Number: {calendar.THURSDAY}')
print(f'Friday Weekday Number: {calendar.FRIDAY}')
print(f'Saturday Weekday Number: {calendar.SATURDAY}')
print(f'Sunday Weekday Number: {calendar.SUNDAY}')

Output

Monday Weekday Number: 0
Tuesday Weekday Number: 1
Wednesday Weekday Number: 2
Thursday Weekday Number: 3
Friday Weekday Number: 4
Saturday Weekday Number: 5
Sunday Weekday Number: 6

Check if an Year is a Leap Year

To check if an year is a leap year, use the calendar. isleap() method ?

Example

import calendar

# Check if any of the Year is a Leap Year
print(calendar.isleap(2020))
print(calendar.isleap(2021))
print(calendar.isleap(2022))
print(calendar.isleap(2023))
print(calendar.isleap(2024))
print(calendar.isleap(2025))

Output

True
False
False
False
True
False