Find all upper, lower and mixed case combinations of a string

Question

I want to write a program that would take a string, let\'s say \"Fox\", then it would display:

fox, F         


        

Answer 1

>>> import itertools
>>> map(''.join, itertools.product(*((c.upper(), c.lower()) for c in 'Fox')))
['FOX', 'FOx', 'FoX', 'Fox', 'fOX', 'fOx', 'foX', 'fox']

Or

>>> s = 'Fox'
>>> map(''.join, itertools.product(*zip(s.upper(), s.lower())))