>>> from collections import deque
>>> myStack = deque()
>>> myStack.append('a')
>>> myStack.append('b')
>>> myStack.append('c')
>>> myStack
deque(['a', 'b', 'c'])
>>> myStack.pop()
'c'
>>> myStack
deque(['a', 'b'])# Python program to
# demonstrate stack implementation
# using list
stack = []
# append() function to push
# element in the stack
stack.append('a')
stack.append('b')
stack.append('c')
print('Initial stack')
print(stack)
# pop() function to pop
# element from stack in
# LIFO order
print('\nElements popped from stack:')
print(stack.pop())
print(stack.pop())
print(stack.pop())
print('\nStack after elements are popped:')
print(stack)
# uncommenting print(stack.pop())
# will cause an IndexError
# as the stack is now empty