Write a Python program that prompts the user for a binary string, and then compute the length of the string without using any built-in python functions (e.g len() ). Also, compute the number of 1's in that binary string (polarity of a binary string).

You should first write a Python function polarity() which accepts one argument, a String that contains only the characters 0 or 1. This function should complete the following tasks: Calculate and the length of the String without using the len() function

Compute the polarity of the String

Return the length and polarity of the String

Notes: The polarity() function should not print any values it should only calculate and return them.

Next, write a Python function named main() that accepts no arguments. The main() function should complete the following tasks:

Prompt the user to enter a String containing only the characters 0 or 1

Calls the polarity() function providing the String as an argument

Assigns the two values returned by the polarity()function to variables

Using the print() function, display the values returned by the polarity()function.