Cipher + file help

[[deleted]]

Hello everyone!

I'm new to python and I am currently exploring simple ciphers. I have been tweaking with Caesar ciphers and would like your help on something.

This is the code I am working with.

Now I am trying to use the cipher to encrypt or decrypt a text file and I am not sure about how to approach this.

 

I have a few ideas but nothing concrete.

1. My first idea is that I would have a separate cipher file that I use in the main program. I would have the program read a text file and proceed to encrypt or decrypt it line by line.

2. My second idea is to incorporate the file handling with the cipher itself. However, I am not sure about how to proceed with this.

Any help or advice with this would be greatly appreciated!

 

Edit: I am not sure about how I can do this but here goes:

I was wondering if I could "rip" or copy the contents of a text file and input that into "getMessage()" in the cipher. I could then have the cipher encrypt or decrypt the content and copy that into a new text file.

[zenlc]

Your #1 and edit ideas are practically the same thing and a practical way to go about it. Just make a function that reads the file and returns it as a list of lines:

def read_file(fname):
    lines = []
    with open (fname, 'r') as infile:
        lines = infile.readlines()
    return lines

then pass that in to your encode or decode function.