I am trying to create a Caesar Cipher in Python.
I have managed to put together my program with the help of some other websites but have hit a bit of a wall.
My code allows me to encrypt a single character and will then ouput this and write it to a file.
I want to apply this function to work with a block of text. I know I could add a for loop to go through each character but was wondering how I would go about creating another function called encryptText that calls my encryptChar function but iterates through each character not just a single one.
Here is my encryptCharacter function
def encryptCharacter(character, key): encrypted ='' if character.isalpha(): num = ord(character) num += key if character.isupper(): if num > ord('Z'): num -= 26 elif num < ord('A'): num += 26 elif character.islower(): if num > ord('z'): num -= 26 elif num < ord('a'): num += 26 encrypted+=chr(num) else: encrypted+=character return encrypted