[Numpy-discussion] numpy-vendor cythonize problem

[Charles R Harris]

I note that current numpy-vendor fails to cythonize in windows builds.
Cython is installed, but I assume it needs to also be installed in each of
the python versions in wine. Because the need to cythonize was already
present in 1.9, I assume that the problem has been solved but the solution
is not present in numpy-vendor in the numpy repos.

Julian, do you have a solution for that?

Chuck

[Ralf Gommers]

Post by Charles R Harris
I note that current numpy-vendor fails to cythonize in windows builds.
Cython is installed, but I assume it needs to also be installed in each of
the python versions in wine. Because the need to cythonize was already
present in 1.9, I assume that the problem has been solved but the solution
is not present in numpy-vendor in the numpy repos.

It's easy to work around by running cythonize in the Linux env you're using
numpy-vendor in, then the files don't need to be generated in the Windows
build. I think I've done that before.

You only need one Windows Cython installed if the "cython" script is found.
If not, you go to this except clause which indeed needs a Cython for every
Python version: https://github.com/numpy/numpy/commit/dd220014373f

A change similar to the f2py fix in
https://github.com/numpy/numpy/commit/dd220014373f will likely fix it.

Ralf