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

one liner using list comprehension:

from itertools import  permutations
strs='fox'
combin=[''.join(x)for x in  permutations(list(strs)+list(strs.upper()),3) if ''.join(x).lower()=='fox']
print(combin)
['fox', 'foX', 'fOx', 'fOX', 'Fox', 'FoX', 'FOx', 'FOX']

using for-in loop:

from itertools import  permutations
strs='fox'
lis2=list(strs)+list(strs.upper())
for x in  permutations(lis2,3):
    if ''.join(x).lower()=='fox':
        print(''.join(x))

fox
foX
fOx
fOX
Fox
FoX
FOx
FOX