Encode and Decode based on dkey

decode.py

# -*- coding: utf-8 -*-

word = raw_input("Decode Word: ")
dkey = "qwerty,uiop:å!asdf;g.hjklø?æz xcv'bnm"
decoded = ""
word = word.lower()

for letterw in word:
    
    for lettera in dkey:
        
        letterp = dkey.index(letterw)
        #print(str(letterw)+", "+str(lettera)+", "+str(letterp)) ##DEBUG!
        
        if letterw == lettera:
            try:
                decoded+=dkey[letterp+1]
            except IndexError:
                letterp=-1
                decoded+=dkey[letterp+1]
            break


print(decoded)
dummie = raw_input()

encode.py

# -*- coding: utf-8 -*-

word = raw_input("Encode Word: ")
dkey = "qwerty,uiop:å!asdf;g.hjklø?æz xcv'bnm"
encoded = ""
word = word.lower()

for letterw in word:
    
    for lettera in dkey:
        
        letterp = dkey.index(letterw)
        #print(str(letterw)+", "+str(lettera)+", "+str(letterp)) ##DEBUG!
        
        if letterw == lettera:
            encoded+=dkey[letterp-1]
            break


print(encoded)
dummie = raw_input()