a stack for these book-details (book no, book name). That is, now each item node of the stack contains two types of information – a book no and its name. Just implement Push and display operations. code example

Example 1: 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'])

Example 2: stack example in python

>>> 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