pip install fails on latest version

[cdeimert]

Hi,

I cloned the latest version of this package from github and tried installing it via pip install ., but the build failed with

...
cythoning psi_at_inf_cython.pyx to psi_at_inf_cython.c
error: C:\Users\deimertc\AppData\Local\Temp\pip-req-build-ynionnel\psi_at_inf_cython.pyx
----------------------------------------
ERROR: Failed building wheel for aestimo
...

I saw that setup.py is trying to cythonize the file "psi_at_inf_cython.pyx", but I didn't see this file anywhere and a search for "psi_at_inf" didn't show any references other than in setup.py. However, if I roll back to the v2.0.2 commit 3498e86, then psi_at_inf_cython.pyx appears in the main folder and pip install . works just fine. So I assume the issue is that psi_at_inf was removed in recent updates but setup.py is still trying to do something with it?

I'll likely want to play with the source code here, at minimum adding some new materials. Will I need to just branch off the v2.0.2 commit, or should the most recent version be workable?

Thanks, Chris