title: what is the best way to do cryptography in python?
body: <p>im new to python and a few years ago i made a word encryption system on paper and i want to use code to automatically turn plain text into the encrypted version and then be able to decrypt it. what is the way i should plan this out? ive never really done that much with python 3.7 and id really appreciate if someone could point me in the right direction. Thanks! i use a four letter shift to start so A=E etc. and then each letter is given a random two digit number and i also have a few simple words given two digit numbers as well to make it more simple. then after the message is a bunch of numbers i have nine letters that each have a value 0-9 so then you'd turn the numbers into the letters each number represents and you end up with just 10 letters that can be turned into any message. this was just me messing around so i didn't bother with punctuation and things like that. its just a starter project.</p>
  
  <p>P.S. sorry about being a complete noob i just dont have any idea where to start</p>