This is all technically correct but unnecessary in Python. For a stack in Python just use a list like this:
# Initialize empty stack as empty list
stack=[]# For push just use append
stack.append("world")stack.append("hello")# For pop just use pop
x=stack.pop()iflen(stack)>0elseNone# For top just use an index of -1
top=stack[-1]iflen(stack)>0elseNone
For a queue, import the deque type (double ended queue) from the collections module and use that.
That is not at all what I said. I said nothing about data structures more generally. However, you wouldn't implement a stack in python the way described in this post. Instead, if you were implementing a stack in python to learn about stacks, you would have a much simpler stack class wrapping a python list with methods for the stack operations implemented the way I described. It still gets across main point of using right end as top of stack.
Using a python list as if it was instead a simple array, as described in this post, just encourages bad python style.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
This is all technically correct but unnecessary in Python. For a stack in Python just use a list like this:
For a queue, import the deque type (double ended queue) from the collections module and use that.
Yeah you are right. Thank you for pointing out. My goal was to code the theory behind the Stack but not the fast and short codes. 🙂
But, the whole point is to understand what happens.
So it's unnecessary study and implement data structures in python cuz they are implemented already???? rofl
That is not at all what I said. I said nothing about data structures more generally. However, you wouldn't implement a stack in python the way described in this post. Instead, if you were implementing a stack in python to learn about stacks, you would have a much simpler stack class wrapping a python list with methods for the stack operations implemented the way I described. It still gets across main point of using right end as top of stack.
Using a python list as if it was instead a simple array, as described in this post, just encourages bad python style.