Python Program to check the year is Leap year or not

For a better understanding of this example, we always recommend you to learn the basic topics of Python programming listed below:

What is a leap year?

Leap year is a year with 366 days in it. Practically, we understand that is to check the month February has 28 days in it. Now we have to know how we check that in a python program.

How to check a leap year in the python program?

Leap year is a year that is divisible by 4. This solution will work for all years except for century-year [ years which are ending in 00]. We have to check that it is divisible by 400; if that is perfectly divisible by 400, it will be a leap year.

In the python program, so we have to use the if condition and elif statement to check if that is divisible by 4 or 400 to confirm the year is a leap year or not. Python language uses the Mod operator for doing the divisible checking.

ALGORITHM

STEP 1: Accept a value for the year from the user. (python programming language accepts only string using the input function, so we have to convert that string to integer before saving the value using the int operator).

STEP 2: Use the if condition and mod operator to check the given year is divisible by 4, and it's not divisible by 100. then print the given year as a leap year.

STEP 3: Use the elif statement to check if the year is perfectly divisible by 100, then print the given year is not a leap year.

STEP 4: Use the elif statement to check the given year is divisible by 400, print the year is a leap year.

STEP 5: Use the else statement in python language to print the given year is not a leap year.

Python Source Code

                                          year = int(input("Please enter the year to check: "))  # accept the year from user

# Leap Year Check

if (
    year % 4 == 0 and year % 100 != 0
):  # checking the year is divisible by 4 and not divisible by 100
    print(year, "it is a leap year")  # print its a leap year
elif year % 100 == 0:

    # check the year divisible by 100

    print(year, "Entered value is not a leap year")
elif year % 400 == 0:

    # checking the year is divisible by 400

    print(year, "it is a leap year")
else:
    print(year, "Entered value is not a leap year")

                                      

OUTPUT

Please enter the year to check:  2004

2004 it is a leap year