Choosing a Queue

A queue is similar to a stack in that is an ordered collection of objects. The order is different though, it is First-In/First-Out (FIFO). This is like a line-up at a bank. For single threaded Python programs you can use either the built-in list type or collections.deque for a FIFO queue. For concurrent code, use either the queue.Queue or multiprocessing.Queue objects for multi-threaded or multi-processing, respectively.

Here are resources and additional documentation about queue, multiprocessing, concurrency, and pickle:

• collections – Container Datatypes: deque objects | Python Documentation
• queue – A synchronized queue class: Queue | Python Documentation
• multiprocessing – Process-based parallelism: Queue | Python Documentation
• What Is the Python Global Interpreter Lock (GIL) | Real Python Article
• Speed Up Python With Concurrency | Real Python Course
• The Python pickle Module: How to Persist Objects in Python | Real Python Article