Store build artifacts in __pycache__

[Pebaz]

In order to solve the many build artifacts cluttering up the file system problem, I came up with a solution that involves storing those artifacts in the __pycache__ directory.

Here is perhaps a better explaination: https://github.com/Pebaz/nimporter/wiki/Build-Artifact-Caching

-- Just an idea, awesome project by the way!

[ssize-t]

Oh this is perfect, thanks!

[Pebaz]

You're welcome! Glad I could help :)