curriculum/challenges/english/blocks/learn-string-manipulation-by-building-a-cipher/6554a49a4f782f208abcc87e.md
You will need to increase the key_index count for the next iteration.
To do this, after the line you just added and in the same code block, use the addition assignment operator to increment key_index by one.
You should use the += operator to add 1 to key_index inside the else clause body.
const commentless_code = __helpers.python.removeComments(code);
const {block_body} = __helpers.python.getBlock(commentless_code, "else");
assert(block_body.match(/key_char\s*=\s*key\s*\[\s*key_index\s*%\s*len\s*\(\s*key\s*\)\s*\]\s*key_index\s*\+=\s*1/));
Your code contains invalid syntax and/or invalid indentation.
({test: () => assert(true) })
text = 'Hello Zaira'
custom_key = 'python'
def vigenere(message, key):
key_index = 0
alphabet = 'abcdefghijklmnopqrstuvwxyz'
encrypted_text = ''
for char in message.lower():
--fcc-editable-region--
# Append space to the message
if char == ' ':
encrypted_text += char
else:
key_char = key[key_index % len(key)]
--fcc-editable-region--
index = alphabet.find(char)
new_index = (index + offset) % len(alphabet)
encrypted_text += alphabet[new_index]
print('plain text:', message)
print('encrypted text:', encrypted_text)