How to display all words that contain these characters?

Question

I have a text file and I want to display all words that contains both z and x characters.

How can I do that ?

Answer 1

Assuming you have the entire file as one large string in memory, and that the definition of a word is "a contiguous sequence of letters", then you could do something like this:

import re
for word in re.findall(r"\w+", mystring):
    if 'x' in word and 'z' in word:
        print word