curriculum/challenges/english/blocks/learn-string-manipulation-by-building-a-cipher/6555df0c81300b175308557d.md
Below the print() call you just added, add another print() call to print Key: python by concatenating the string 'Key: ' and the value of the custom_key variable.
You should have a print() call that prints Key: python by concatenating the string 'Key: ' and the value of the custom_key variable.
const commentless_code = __helpers.python.removeComments(code);
assert.match(commentless_code, /^print\s*\(\s*("|')Key:\s\1\s*\+\s*custom_key\s*\)/m);
Your code contains invalid syntax and/or invalid indentation.
({test: () => assert(true) })
text = 'mrttaqrhknsw ih puggrur'
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
def encrypt(message, key):
return vigenere(message, key)
def decrypt(message, key):
return vigenere(message, key, -1)
--fcc-editable-region--
print('Encrypted text: ' + text)
--fcc-editable-region--
#decryption = decrypt(encryption, custom_key)
#print(decryption)