Python regex : detect a word with duplicated chars

Question

I wonder if i could detect the word 'hey' but in this form : 'heeeey' How would i do that in python ? I searched many times but i didn't find an answer.

*I want the program to get it like 'hey' at last, i want it to understand that 'heeey' means 'hey'.

Answer 1

import re
p = re.compile(r'(.)\1+')
test_str = "heeeey"
subst = r"\1"

result = re.sub(p, subst, test_str)

You can do it through re.sub.Here we capture any character which are repeated ahead and replace all by \1 .So all the repetitions will be gone.

See demo.

https://regex101.com/r/cK4iV0/7#python