Python can execute thread A or thread C while thread B is waiting for a reply from an external system, for example ... so they would need to use a Queue or a similar abstraction to pass ...

This guide will give examples of both thread and process architectures ... for dealing with these tasks is, of course, a queue, and Python provides a queue module which is especially geared ...

For example, let's say you want to retrieve all of the data from a variety of websites. My preferred Python package for ... such as an "append" from one thread might cause all sorts of problems.