Alphabet Index Lookup

This function takes two arguments, a and b, and returns their indices in the English alphabet. If the arguments are not letters, it returns None.

Technology Stack : Dictionary comprehension, dictionary, string method lower(), get method

Code Type : Function

Code Difficulty : Beginner

                
                    
def a_to_z_index(a, b):
    return {chr(i): i - 96 for i in range(97, 123)}.get(a.lower(), None), {chr(i): i - 96 for i in range(97, 123)}.get(b.lower(), None)