I need to create a truth table (as a list of lists) given an expression (string). I was given a function to extract the variables. I need to complete this method recursively.
An expression could be "a or b", "(a and b) or c", etc.

I am very new to python, so I am not familiar with a lot of the built in functions.
Some of the things I'm confused on is how to get the operators from the expression?...