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Python if else Statement


Decision making is required when we want to execute a code only if a certain condition is satisfied.

Statement Description
if statement If the text expression is True, the statement(s) is executed.
if else statement The if..else statement evaluates test expression and will execute body of if only when test condition is True. If the condition is False, body of else is executed.
Nested if statements Nesting means using one if-else construct inside one another.

Write a python program to Check Leap Year using if else statement.

Example
year = int(input("Enter a year: "))
if (year % 4) == 0:
    if (year % 100) == 0:
        if (year % 400) == 0:
            print(str(year)+" is a leap year")
        else:
            print(str(year)+" is not a leap year")
    else:
        print(str(year)+" is a leap year")
else:
    print(str(year)+" is not a leap year")
Output
Enter a year : 2020
2020 is a leap year