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

>>> import re
>>> print re.findall('(\w*x\w*z\w*|\w*z\w*x\w*)', 'axbzc azb axb abc axzb')
['axbzc', 'axzb']