Learn String Manipulation by Building a Cipher - Step 70

Python
1

Tell us what’s happening:

im stuck and please fix my code
this is so time consuming and frustrating

Your code so far


# User Editable Region

text = 'Hello Zaira'
custom_key = 'python'

# Step 1: Added 'direction' as the third parameter
def vigenere(message, key, direction):
    key_index = 0
    alphabet = 'abcdefghijklmnopqrstuvwxyz'
    encrypted_text = ''

    for char in message.lower():
    
        if char == ' ':
            encrypted_text += char
        else:        
            key_char = key[key_index % len(key)]
            key_index += 1

            offset = alphabet.index(key_char)
            index = alphabet.find(char)
            new_index = (index + offset) % len(alphabet)
            encrypted_text += alphabet[new_index]
    
    return encrypted_text

# Step 2: Comment out these lines at the very start of the line
# encryption = vigenere(text, custom_key, 1)
# print(encryption)

# User Editable Region

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Challenge Information:

Learn String Manipulation by Building a Cipher - Step 70

2

You should reset the lesson and try fresh, and just add third parameter and comment last two lines.

3

it says You should turn the last two lines in your code into comments. Put a # at the beginning of each line.

text = ‘Hello Zaira’

custom_key = ‘python’

# Step 1: Added ‘direction’ as the third parameter

def vigenere(message, key, direction):

key_index = 0

alphabet = 'abcdefghijklmnopqrstuvwxyz'

encrypted_text = ''



for char in message.lower():



    if char == ' ':

        encrypted_text += char

    else:        

        key_char = key\[key_index % len(key)\]

        key_index += 1



        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, 1)

#print(encryption)
4

You did not reset this step. The tests will not pass if you change the starting code where you were not asked to make a change. After resetting, only comment out the last two lines and add the direction parameter to the function definition. Don’t change or add anything else.

5

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