Tell us what’s happening:
The task is below.
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.
On the terminal it does not say anything and the hint says this.
You should use the += operator to add 1 to key_index inside the else clause body.
I do not know what I am doing incorrectly. Can you help me please?
Your code so far
text = 'Hello Zaira'
custom_key = 'python'
def vigenere(message, key):
key_index = 0
alphabet = 'abcdefghijklmnopqrstuvwxyz'
encrypted_text = ''
for char in message.lower():
# User Editable Region
# Append space to the message
if char == ' ':
encrypted_text += char
else:
key_char += key[key_index +1 % len(key)]
key_index += 1
# User 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)
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Challenge Information:
Learn String Manipulation by Building a Cipher - Step 63