python stack commands code example

Example 1: stack data structure python

#using doubly linked list
from collections import deque
myStack = deque()

myStack.append('a')
myStack.append('b')
myStack.append('c')

myStack
deque(['a', 'b', 'c'])

myStack.pop()
'c'
myStack.pop()
'b'
myStack.pop()
'a'

myStack.pop()

#Traceback (most recent call last):
 #File "<console>", line 1, in <module>
##IndexError: pop from an empty deque

Example 2: python stack data structure

>>> 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'])

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Java Example

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