Stacks in Python and Selecting the Ideal Data Structure

Stacks in Python and Selecting the Ideal Data Structure

Stacks in Python and Selecting the Ideal Data Structure. A stack is a collection that stores arbitrary items in an order specified by Last-In/First-Out (LIFO) semantics. There is no native stack implementation in Python. Your choices for a stack are: using the built-in `list` type, the `deque` object from the `collections` library, or `queue.LifoQueue`.

A stack is a collection that stores arbitrary items in an order specified by Last-In/First-Out (LIFO) semantics. This means that the last item put into the stack is the first item available for removal from the stack. This is similar to a pile of lunch room trays -- you access the most recent tray put on top first.

There is no native stack implementation in Python. Your choices for a stack are: using the built-in list type, the deque object from the collections library, or queue.LifoQueue.

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python data-structure

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