In this post, we will see the Python program for calculating the median of a given integer list.

Examples:

Given list: [10, 20, 30, 40, 0, 12, 100]
Median of the given data is : 20

Given list: [10, 20, 30, 40, 0, 12, 100, 200]
Median of the given data is : 25.0

Now, let’s see the Python code:

# define a user defined function for
# calculating median of a given list
# of integers
def median(integer_list):

    # length of given list
    length = len(integer_list)
    
    # check for length of the list
    # if list is of even length
    # then median value find this way
    if length % 2 == 0:
        
        n1 = integer_list[ (length // 2) - 1 ]
        n2 = integer_list[ length // 2 ]
        
        median_value = (n1 + n2) / 2
        
    # if list is of odd length
    else:
        median_value = integer_list[ ((length) // 2 )]

    # returning the median value
    return median_value

# main code
if __name__ == "__main__" :

    # input list - odd length
    integer_list_1 = [10, 20, 30, 40, 0, 12, 100]

    print("Given list is:",
          integer_list_1)

    # sort the given list of integers
    # in ascending order
    integer_list_1.sort()
    
    print("Performing sorting in Ascending order:",
          integer_list_1)
    
    print ("Median of the given data is :" ,
           median(integer_list_1))

    # input list - even length
    integer_list_2 = [10, 20, 30, 40, 0, 12, 100, 200]

    print("\nGiven list is:",
          integer_list_2)

    # sort the given list of integers
    # in ascending order
    integer_list_2.sort()
    
    print("Performing sorting in Ascending order:",
          integer_list_2)
    
    print ("Median of the given data is :" ,
           median(integer_list_2))

Output:

Given list is: [10, 20, 30, 40, 0, 12, 100]
Performing sorting in Ascending order: [0, 10, 12, 20, 30, 40, 100]
Median of the given data is : 20

Given list is: [10, 20, 30, 40, 0, 12, 100, 200]
Performing sorting in Ascending order: [0, 10, 12, 20, 30, 40, 100, 200]
Median of the given data is : 25.0