from collections import deque class stack: def __init__(self): self.container = deque() def push(self, data): self.container.append(data) def pop(self): self.container.pop() def size(self): return len(self.container) def is_empty(self): if len(self.container) == 0: return 'Empty' else: return 'Not Empty' def print(self): print(self.container) ss = stack() ss.push(56) ss.push(85) ss.pop() ss.pop() ss.print() print(ss.is_empty())