snakehouse is a tool to pack mutiple .pyx files into a single extension so that they are importable as separate Python modules inside Python.

Inspired by this StackOverflow discussion.

Tested and works on CPython 3.5-3.12, both Windows and Linux.

It doesn't work on PyPy due to lack of PyModule_FromDefAndSpec symbol.

Be sure to read the docs before you start using it.