Answers for "how to declare stack in python"

7

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
Posted by: Guest on January-05-2020
0

stack program in python 3

>>> myStack = []

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

>>> myStack
['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 empty list
Posted by: Guest on May-25-2020

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