Regex to remove repeated character pattern in a string

Question

I have a string that may have a repeated character pattern, e.g.

\'xyzzyxxyzzyxxyzzyx\'

I need to write a regex that would replace such str

Answer 1

How (using re module) write function, that remove all duplications.

import re
def remove_duplications(string):
    return re.sub(r'(.+?)\1+', r'\1', string)