Python Program To Display Calendar Using Loop

Python is an object-oriented, high-level, interpreted, and simple programming language. In Python, we are going to use the “Calendar” module to display a calendar. In this article, we are going to cover all the possible ways to display a calendar using loops i.e., while loop, for loop, etc., and various operations on the calendar, in tabular format such as days and months of the whole year.

Display Calendar Using Loop in Python

Below are some examples by which we can display the calendar using a loop in Python:

Python Program To Display Calendar For Loop

In this example, a calendar matrix for February 2024 is generated using Python’s `calendar` module. The matrix is printed in a tabular format with days of the week headers, where each day’s number is displayed right-aligned within a two-character space using for loop.

Python3

import calendar

year = 2024
month = 2

#matrix format
cal = calendar.monthcalendar(year, month)

print("Mo  Tu  We  Th  Fr  Sa  Su")

for week in cal:
    for day in week:
        if day == 0:
            print("   ", end=" ")
        else:
            print(f"{day:2} ", end=" ")
    print()

Output

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              

Python Program To Display Calendar Using While Loop

In this example, a calendar matrix for February 2024 is created using Python’s `calendar` module. The days of the week are displayed in a tabular format with the corresponding day numbers aligned within a two-character space. The variable `head` represents the header with week names, and the matrix is printed using nested loops to iterate through each week and day.

Python3

import calendar

year = 2024
month = 2

#using to represent matrix form
cale = calendar.monthcalendar(year, month)

#print the week names
head = "Mo  Tu  We  Th  Fr  Sa  Su"

print(head)

for week in cale:
    day_index = 0
    while day_index < len(week):
        day = week[day_index]
        if day == 0:
            print("   ", end=" ")
        else:
            print(f"{day:2d} ", end=" ")
        day_index += 1
    print()

Output

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