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

I won't talk about the list structure as that's already been covered in this question. Instead I'll mention my preferred method for dealing with stacks:

I always use the Queue module. It supports FIFO and LIFO data structures and is thread safe.

See the docs for more info. It doesn't implement a isEmpty() function, it instead raises a Full or Empty exception if a push or pop can't be done.