Python - Stack - Tutorialspoint
www.tutorialspoint.com › python_stackclass Stack: def __init__(self): self.stack = [] def add(self, dataval): # Use list append method to add element if dataval not in self.stack: self.stack.append(dataval) return True else: return False # Use list pop method to remove element def remove(self): if len(self.stack) <= 0: return ("No element in the Stack") else: return self.stack.pop() AStack = Stack() AStack.add("Mon") AStack.add("Tue") AStack.add("Wed") AStack.add("Thu") print(AStack.remove()) print(AStack.remove())
Stack in Python - GeeksforGeeks
https://www.geeksforgeeks.org/stack-in-python09.10.2019 · Python stack can be implemented using the deque class from the collections module. Deque is preferred over the list in the cases where we need quicker append and pop operations from both the ends of the container, as deque provides an O(1) time complexity for append and pop operations as compared to list which provides O(n) time complexity.