My code for vigenere cipher in pset2 completes all tests except the one with a comma and space in plaintext, it iterates the keyword index over comma and space and i dont know how to fix it. It should iterate only over letters
:( encrypts "hello, world!" as "iekmo, vprke!" using "baz" as keyword
https://gist.github.com/romon267/4ec1accff7c3b637992a88d5706f1450