Another Class: Just for Fun


 #file: stack.py

"""Implementation of a classic 
stack data structure: class Stack"""

class Stack:

    "Stack implements a classic stack with lists"
    
    def __init__(self): self.data = []

    def push(self, x): self.data.append(x)

    def top(self): return self.data[-1]

    def pop(self): return self.data.pop()