Leap year

A leap year is a calendar year that includes an additional day to synchronize the calendar year with the astronomical or seasonal year. – Wikipedia

Logic

The Logic to check this is quite simple. We only need to check if the given year is multiple of 4 or 400, but it should not be multiple of 100.

Program

LeapYear.pyCopy
# Take year from user
year = int(input("Enter a year : "))

# Check for leap year
if year % 4 == 0 :

    if (year % 100 == 0) :

        if (year % 400 == 0) :
            print("\n" + str(year), "is a leap year.")
        else :
            print("\n" + str(year), "is not a leap year.")

    else :
        print("\n" + str(year), "is a leap year.")

else :
    print("\n" + str(year), "is not a leap year.")
Try It

Output

Enter a year : 2012
2012 is a leap year.