Efficient way to search for invalid characters in python

Question

I am building a forum application in Django and I want to make sure that users dont enter certain characters in their forum posts. I need an efficient way to scan their whol

Answer 1

re.match and re.search behave differently. Splitting words is not required to search using regular expressions.

import re
symbols_re = re.compile(r"[^<>/\{}[]~`]");

if symbols_re.search(self.cleaned_data('topic_message')):
    //raise Validation error