Python – Single linked list in Python, how to write pop and push


I am trying to code a class that makes use of Push and Pop from a stack (with single linked list). I am not sure how to write the push and pop functions. I really need a simple example written in Python with the following functions.


Best Solution

From the docs that Dyno Fu linked to:

The list methods make it very easy to use a list as a stack, where the last element added is the first element retrieved (“last-in, first-out”). To add an item to the top of the stack, use append(). To retrieve an item from the top of the stack, use pop() without an explicit index. For example:

>>> stack = [3, 4, 5]
>>> stack.append(6)
>>> stack.append(7)
>>> stack
[3, 4, 5, 6, 7]
>>> stack.pop()
>>> stack
[3, 4, 5, 6]
>>> stack.pop()
>>> stack.pop()
>>> stack
[3, 4]

And finally, to check if a list is empty:

>>> my_list = []
>>> not my_list