Hmm, didn't fix the problem. maybe import in the test?

This time I tested before pushing (a unique idea, I should do it more often). I hope it has a better chance of passing. I also noticed some small C warnings about "warning: function declaration isn't a prototype" so added a void argument to fix those too.

Travis is hopelessly lagged, so just going to put this in since azure passes. Thanks Matti.

EDIT: Fixed in #16828.

I still see this that happens during pytest collection

charris@fc [numpy.git (master)]$ python runtests.py -t numpy/tests -- --collect-only
Building, see build.log...
Build OK
/home/charris/.local/lib/python3.8/site-packages/setuptools/distutils_patch.py:25: UserWarning: Distutils was imported before Setuptools. This usage is discouraged and may exhibit undesirable behaviors or errors. Please use Setuptools' objects directly or at least import Setuptools first.
  warnings.warn(

Could be in pytest, or maybe pytest is importing some files during collection.