Learn String Manipulation by Building a Cipher - Step 66

Python
1

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Describe your issue in detail here.

Your code so far

text = 'Hello Zaira'
custom_key = 'python'

def vigenere(message, key, direction):
    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)

/* User Editable Region */

            new_index = (index + (offset * direction)) % len(alphabet)

/* User Editable Region */

            encrypted_text += alphabet[new_index]
    
    return encrypted_text
    
#encryption = vigenere(text, custom_key)
#print(encryption)

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Challenge Information:

Learn String Manipulation by Building a Cipher - Step 66

2

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3

hello @Daria67

the instruction was this:
All you need to do is multiply the offset by the direction in the new_index assignment. The multiplication operator in Python is * .

this instruction not say that you need to use bracket for multiplying offset with direction remove them

1 Like
4

Thank you! I actually made the same mistake as I, for whatever reason, just assumed the * operator needed brackets…