Vigenère

import string
import textUtils


def Enc(text, key):
    alpha = list(string.ascii_uppercase)
    text = textUtils.noUmlauts(text)
    text = text.upper()
    while len(key) < len(text):
        key = key+key
    text = list(text)
    key = key.upper()
    key = list(key)
    dectext = ""
    for i in text:
        if i in alpha:
            index = alpha.index(i)+alpha.index(key[text.index(i)])
            shift = index % 26
            i = alpha[shift]
        dectext = dectext + i
    print(dectext)


def Dec(text, key):
    alpha = list(string.ascii_uppercase)
    text = textUtils.noUmlauts(text)
    text = text.upper()
    while len(key) < len(text):
        key = key+key
    text = list(text)
    key = key.upper()
    key = list(key)
    dectext = ""
    for i in text:
        if i in alpha:
            index = alpha.index(i)-alpha.index(key[text.index(i)])
            shift = index % 26
            i = alpha[shift]
        dectext = dectext + i
    print(dectext)


#----------------------------textUtils.py in my Pastebin-------------------------------#