Python function to retrieve middle character

Python None Data Type: Exercise-2 with Solution

Write a Python function that returns the middle character of a string or "None" if the string length is odd.

Sample Solution:

Code:

def get_middle_character(input_string):
    length = len(input_string)
    
    if length % 2 == 0:
        return "None"
    else:
        middle_index = length // 2
        return input_string[middle_index]

def main():
    try:
        input_string = input("Input a string: ")
        result = get_middle_character(input_string)
        
        if result == "None":
            print("String length is even, no middle character.")
        else:
            print("Middle character:", result)
    except Exception as e:
        print("An error occurred:", e)

if __name__ == "__main__":
    main()

Output:

Input a string: abcd
String length is even, no middle character.

Input a string: abcde
Middle character: c

In the above exercise, the program defines the "get_middle_character()" function, which calculates the length of the input string and checks if it's odd. If it's odd, it returns the middle character of the string; otherwise, it returns "None". In the "main()" function, user input is processed using "get_middle_character()", and the result is printed.

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