Stack data structure in python

Question

I have 2 issues with the code below:

1. push(o) throws an exception TypeError: can only assign an iterable.

2. Should I throw an exception if pop()

Answer 1

No need to jump through these loops, See 5.1.1 Using Lists as Stacks

If you insist on having methods isEmpty() and push() you can do:

class stack(list):
    def push(self, item):
        self.append(item)
    def isEmpty(self):
        return not self