curriculum/challenges/english/blocks/learn-string-manipulation-by-building-a-cipher/6554dfce1683be3c0c9609a6.md
Now you can uncomment the last two lines and modify your function call passing 1 as the third argument.
You should restore the last two lines of your code and pass 1 as the third argument to your function call.
({ test: () => assert.match(code, /^encryption\s*=\s*vigenere\s*\(\s*text\s*,\s*custom_key\s*,\s*1\s*\)\s*print\s*\(\s*encryption\s*\)/m) })
text = 'Hello Zaira'
custom_key = 'python'
def vigenere(message, key, direction):
key_index = 0
alphabet = 'abcdefghijklmnopqrstuvwxyz'
encrypted_text = ''
for char in message.lower():
# Append space to the message
if char == ' ':
encrypted_text += char
else:
# Find the right key character to encode
key_char = key[key_index % len(key)]
key_index += 1
# Define the offset and the encrypted letter
offset = alphabet.index(key_char)
index = alphabet.find(char)
new_index = (index + offset*direction) % len(alphabet)
encrypted_text += alphabet[new_index]
return encrypted_text
--fcc-editable-region--
#encryption = vigenere(text, custom_key)
#print(encryption)
--fcc-editable-region--