Let's Review the yield Keyword

From it's beginning yield has offered a really interesting tool for Python developers -- pause execution and switch contexts.

That functionality was later extended to provide stopping points to collect return values in functions/methods, allowing developers to write their own schedulers and co-routines.

Aside: Check out David Beasley's talk at PyCon last year for a really cool explanation of that, he basically writes an operating system live. https://www.youtube.com/watch?v=MCs5OvhV9S4

In this meetup we'll take a look at the internals of the yield keyword, and the process that occurs when we pause script execution this way.