Learn String Manipulation by Building a Cipher - Step 70

Python
1

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i am no getting this
please help me
as i am not getiing

Your code so far


# User Editable Region

text = 'Hello Zaira'
custom_key = 'python'

def vigenere(message, key, direction="encode"):
    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)

            if direction == "encode":  
    
    return encrypted_text
    
# Example usage (commented out)
# encryption = vigenere(text, custom_key, "encode")
# print(encryption)
# decryption = vigenere(encryption, custom_key, "decode")
# print(decryption)


# User Editable Region

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Challenge Information:

Learn String Manipulation by Building a Cipher - Step 70

2

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