Python program to check leap year

In this article, you will learn different ways in Python programming to check whether a particular year is a leap year or not. A leap year is 366 days old rather than 365 days, in light of the fact that February is about 29 days long instead of the normal 28 days. This additional day occurs in years which are multiples of four, i.e., 1992, 1996, 2000, 2004, 2008, 2012.

Logic for the Leap Year

Most of us definitely know the logic behind checking for a leap year in a Gregorian calendar. These are the three rules that should be followed to identify a leap year.

• The year can be evenly divided by 4,
• If the year can be evenly divided by 100, it is NOT a leap year, except if;
• The year is also evenly divisible by 400. Then it is a leap year.

Python program to check leap year

In the given Python program, the user is asked to enter a year. The program checks whether the entered year is a leap year or not.

# Python program to check leap year

# getting user input
year = int(input("Enter a year: "))

# leap year if the year is evenly divided by 4
if (year % 4) == 0:

   # leap year if the year is evenly divided by 100
   if (year % 100) == 0:
       
       # leap year if evenly divisible by 400
       if (year % 400) == 0:
           print("{0} is a leap year".format(year))
       else:
           print("{0} is not a leap year".format(year))
   else:
       print("{0} is a leap year".format(year))
else:
   print("{0} is not a leap year".format(year))

Enter a year: 2020
2020 is a leap year

Enter a year: 2005
2005 is not a leap year

Enter a year: 2010
2010 is not a leap year

Python program to check leap year between given range

In the given Python program, we will find the leap years between the given range of two years.

# Python program to check leap year

# getting user inputs
print ("Enter the lowest year:")
startYear = int(input())

print ("Enter the highest year: ")
endYear = int(input())
 
print ("Leap years in given range are: ")

#loop between the start and end year
for year in range(startYear, endYear):
    
  #check for leap year
  if (0 == year % 4) and (0 != year % 100) or (0 == year % 400):
    print (year)

Enter the lowest year:
1990
Enter the highest year: 
1998
Leap years in given range are: 
1992
1996

Enter the lowest year:
2010
Enter the highest year: 
2020
Leap years in given range are: 
2012
2016

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