Using Python and a while loop only,

Write code that takes a string and a substring from the user, and removes all instances of the substring, returning that new resultant string. You may not use any built-in functions/methods besides len() and .append(). Specifically, you may NOT use the replace() method.

Template:

def remove(string, sub): string = string sub = sub #YOUR CODE GOES HERE (indented) return [] #END YOUR CODE