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added __len__

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Benjamin Adovasio
2026-03-15 16:28:03 -04:00
parent 5b3f9eff6b
commit bb366686c1
1 changed files with 2 additions and 2 deletions
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4
Project 5/Stack.py
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@@ -21,7 +21,7 @@ class Stack[T]:
''' initializes an empty stack ''' ''' initializes an empty stack '''
self._data = LinkedList() self._data = LinkedList()
def __len__(self) -> int: def __len__(self) -> int:
''' allows the len function to be called using an ArrayStack object, e.g., ''' allows the len function to be called using an ArrayStack object, e.g.,
stack = ArrayStack() stack = ArrayStack()
@@ -29,7 +29,7 @@ class Stack[T]:
Returns: Returns:
number of elements in the stack, as an integer number of elements in the stack, as an integer
''' '''
pass return len(self._data)
def push(self, item: T) -> None: def push(self, item: T) -> None:
''' pushes a given item of arbitrary type onto the stack ''' pushes a given item of arbitrary type onto the stack