Build a User-Friendly Python Tkinter Caesar Cipher App for Encryption & Decryption 🔒

As done many times before, tkinter here too is used to provide a GUI interface to carry out encryption and decryption. Cipher texts are encrypted text transformed from plaintext using an encryption algorithm. Ciphertext cannot be read until it has been converted into plaintext (decrypted) with a key. The decryption cipher is an algorithm that transforms the ciphertext back into plaintext.
Here, in this video, encryption and decryption are not our focus. They are carried by a separate module 'onetimepad'. Tkinter provides buttons, entry fields, and labels to carry out the process and make it user interactive.
For code go to: https://github.com/pickry/Tkinter/blob/main/cipher.py