Learn String Manipulation by Building a Cipher - Step 70

Python
1

Tell us what’s happening:

I feel like i have completed all the required tasks to have this step correct

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

Add a third parameter called direction to your function definition.

I don’t see this part?

3

yeah thats my problem: what is “function definition”?

4

If you don’t remember, the first thing I would do personally is to either look back at earlier steps or punch “python function definition” into Google.

The first hit here looks good:

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