“”” crypto.py
Implements a simple substitution cypher
“””
alpha = “ABCDEFGHIJKLMNOPQRSTUVWXYZ”
key = “XPMGTDHLYONZBWEARKJUFSCIQV”
result = “”
def main():
keepGoing = True
while keepGoing:
response = menu()
if response == “1”:
plain = raw_input(“text to be encoded: “)
print encode(plain)
elif response == “2”:
coded = raw_input(“code to be decyphered: “)
print decode(coded)
elif response == “0”:
print “Thanks for doing secret spy stuff with me.”
keepGoing = False
else:
print “I don’t know what you want to do…”
#Define the menu
def menu():
#print out the menu
print (“SECRET DECODER MENUnn 0) Quitn 1) Encoden 2) DecodennWhat do you want to do?”)
#take in user respose and return it
userResponse = raw_input()
return userResponse
#define the encoder
def encode(plain):
#For loop to find the letters in plain
for letters in plain:
#find the same letters in alpha and set as location
location = letters.find(alpha)
#find the same location in the key
result = key[location]
return
main()
How do I make this work?
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