Python Program to Check Leap Year

To understand this example, you should have the knowledge of the following Python programming topics:


A leap year is exactly divisible by 4 except for century years (years ending with 00). The century year is a leap year only if it is perfectly divisible by 400. For example,

 2017 is not a leap year 1900 is a not leap year 2012 is a leap year 2000 is a leap year 

Source Code

 # Python program to check if year is a leap year or not year = 2000 # To get year (integer input) from the user # year = int(input("Enter a year: ")) # divided by 100 means century year (ending with 00) # century year divided by 400 is leap year if (year % 400 == 0) and (year % 100 == 0): print("{0} is a leap year".format(year)) # not divided by 100 means not a century year # year divided by 4 is a leap year elif (year % 4 ==0) and (year % 100 != 0): print("{0} is a leap year".format(year)) # if not divided by both 400 (century year) and 4 (not century year) # year is not leap year else: print("{0} is not a leap year".format(year))

Output

 2000 is a leap year 

You can change the value of year in the source code and run it again to test this program.


Also Read:

Before we wrap up, let's put your understanding of this example to the test! Can you solve the following challenge?

Challenge:

Write a function to calculate the number of leap years between two given years.

  • Hint: A year is considered a leap year if it is divisible by 4, but not by 100, unless it is also divisible by 400.
  • For example, for inputs 2000 and 2020, the output should be 6.
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