[Python] Collapse multiple submodules to one Cython extension

This setup.py:

from distutils.core import setup
from distutils.extension import Extension
from Cython.Build import cythonize

extensions = (
Extension('myext', ['myext/__init__.py',
'myext/algorithms/__init__.py',
'myext/algorithms/dumb.py',
'myext/algorithms/combine.py'])
)
setup(
name='myext',
ext_modules=cythonize(extensions)
)


Doesn't have the intended effect. I want it to produce a single myext.so, which it does; but when I invoke it via

python -m myext.so


I get:

ValueError: Attempted relative import in non-package


due to the fact that myext attempts to refer to .algorithms.

Any idea how to get this working?

Continue reading...