Learn String Manipulation by Building a Cipher - Step 81

Tell us what’s happening:

Describe your issue in detail here.
Next, modify your `encryption` and `decryption` variables by calling `encrypt` and `decrypt` , respectively.

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]

return final_message

# User Editable Region

def encrypt(message, key):
return vigenere(message, key)

def decrypt():
return vigenere(message, key, -1)

encryption = vigenere(text, custom_key)

print(encryption)

encryption = encrypt(text, custom_key)

decryption = vigenere(encryption, custom_key, -1)

print(decryption)

decryption = decrypt(encryption, custom_key, -1)

# User Editable Region

``````

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Challenge Information:

Learn String Manipulation by Building a Cipher - Step 81

1 Like

You appear to have created this post without editing the template. Please edit your post to Tell us what’s happening in your own words.

You seem to have doubled up on your code.

Reread the instructions, they are asking you to call with certain values.

Happy coding

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