Caesar's Cipher using python, could use a little help

Question

I\'m trying to make a \"Caesar\'s Cipher\" while using python..this is what I have so far. Could anyone tell me how this is looking? Am I going in the right direction? What

Answer 1

I very simple, 3-shift solution without Umlauts and alike would be:

def caesar(inputstring):
    shifted=string.lowercase[3:]+string.lowercase[:3]
    return "".join(shifted[string.lowercase.index(letter)] for letter in inputstring)

and reverse:

def brutus(inputstring):
    shifted=string.lowercase[-3:]+string.lowercase[:-3]
    return "".join(shifted[string.lowercase.index(letter)] for letter in inputstring)

using it:

caesar("xerxes")