in python, please provide details on how to execute it and code that i can edit.

Write the following function and provide a program to test it (main and function in one .py)

def notInEither(str1, str2)

that takes two string arguments str1, str2 and returns a set consisting of the lower case letters that are NOT contained in both strings. Use the function letters(str1), from question 1, to turn the letters into sets. (Use difference). 5 pts

Your code with comments

A screenshot of the execution

Test Case:

Enter string1: abcdefg

Enter string2: hijklmnopqurs

The set of lowercase letters not in either is {'w', 't', 'y', 'x', 'v', 'z'}