best python stack implementation
class Stack:
def __init__(self):
self.items = []
def isEmpty(self):
return self.items == []
def push(self, item):
self.items.append(item)
def pop(self):
return self.items.pop()
def peek(self):
return self.items[len(self.items)-1]
def size(self):
return len(self.items)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'])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 listCopyright © 2021 Codeinu
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