Learn String Manipulation by Building a Cipher - Step 70

Python
1

Tell us what’s happening:

Last two lines are commented, third parameter added, yet I’m still asked to comment last two lines.

Above these lines only “return encrypted_text”, and I assume, this is not something you need to comment.

Running code without comment gives error AS EXPECTED, not letting me though

encryption = vigenere(text, custom_key, direction)

print(encryption)

Your code so far


# User Editable Region

text = 'Hello Zaira'
custom_key = 'python'

def vigenere(message, key):
    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) % len(alphabet)
            encrypted_text += alphabet[new_index]
    
    return encrypted_text
    
# encryption = vigenere(text, custom_key, direction)
# print(encryption)

# User Editable Region

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Challenge Information:

Learn String Manipulation by Building a Cipher - Step 70

2

You are asked to add the third parameter to the function definition. You have added it to the function call at the bottom. Hope this helps :slight_smile:

3

Now I feel like a dummy

Thank you!

4

I always felt like a dummy going through the course. It takes some time to get used to the terminology.

1 Like