In this tutorial we learn how to check leap year using Python 3.X program.  Leap years are years where an extra day is added to the end of the shortest month (February). This additional day is added in February which makes it 29 days long.
Leap years have 366 days instead of the usual 365 days and occur almost every four years.

#function checkLeap will leap year
def checkLeap(yr):   
  if((Year % 400 == 0) or  
     (Year % 100 != 0) and  
     (Year % 4 == 0)):   
    print("Leap Year");   
  else:  
    print ("Not a leap Year")  
# Taking an input year from user  
yr= int(input("Enter the Year: "))  
#Printing result  
checkLeap(yr)  

Save above code as chekhleap.py. Open CMD or Terminal and run command given below

For Windows :  python ./chekhleap.py

For Linux : python3 ./chekhleap.py