Tell us what’s happening:
As instructed, I created a new function with given parameters and used ‘pass’ to fill the function body. The code raised an error. Can’t figure out the mistake.
Your code so far
text = 'Hello Zaira!'
custom_key = 'python'
def vigenere(message, key, direction=1):
key_index = 0
alphabet = 'abcdefghijklmnopqrstuvwxyz'
final_message = ''
for char in message.lower():
# Append any non-letter character to the message
if not char.isalpha():
final_message += char
else:
# Find the right key character to encode/decode
key_char = key[key_index % len(key)]
key_index += 1
# Define the offset and the encrypted/decrypted letter
offset = alphabet.index(key_char)
index = alphabet.find(char)
new_index = (index + offset*direction) % len(alphabet)
final_message += alphabet[new_index]
# User Editable Region
return final_message
def encrypt(message,key):
pass
encrpytion = vigenere(text, custom_key)
print(encryption)
decryption = vigenere(encryption, custom_key, -1)
print(decryption)
# User Editable Region
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Challenge Information:
Learn String Manipulation by Building a Cipher - Step 82