Learn String Manipulation by Building a Cipher - Step 71

Python
1

Tell us what’s happening:

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)
            new_index = (index + offset*direction) % len(alphabet)
            encrypted_text += alphabet[new_index]
    
    return encrypted_text
    

# User Editable Region

encryption = vigenere(text, custom_key)
print(encryption)

# User Editable Region

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Challenge Information:

Learn String Manipulation by Building a Cipher - Step 71

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2

You appear to have created this post without editing the template. Please edit your post to Tell us what’s happening in your own words.

3

Hi, welcome to the forum!
We see you have posted some code but did you have a question?

(You have not filled out the “Tell us what’s happening:” field above)

4

modify your function call passing 1 as the third argument

2 Likes
5

Sorry but I am new and I do no know how all works??
In this step I must do two things:
1 uncomment the last 2 lines which I did
2 I called the function like vigenere(‘message’, ‘key’, ‘direction += 1’) but doesn’t work…
I feel stupid…

6

Welcome
And dont say i’am stupid coding is a trip

All you have to do is

Frist Rest the step 
encryption = vigenere(text, custom_key)

Add 1 after custom_key Dont forget

,

1 Like
7

Thank you so much…It works. I didn’t see that the function call was the one after encryption =
Next time I need to ready properly the code. Thank you so much. I very happy to be here.

8

If it worked don’t forget to click that

Solution Button

9

i trully understand this felling, but we already reach the seventieth step.it’s a freaking victory, for us who started now.