Can't install the Python3 version of PyPolyChord

[appetrosyan]

The provided installation instructions fail.

steps to reproduce: fresh install,
make pypolychord && CC=cc CXX=c++ python setup.py install --user

expected result:
running python3 run_polychord.py should work.

actual result:

Traceback (most recent call last):
  File "run_pypolychord.py", line 2, in <module>
    import pypolychord
  File "/Users/app/Git/PolyChordLite/pypolychord/__init__.py", line 28, in <module>
    raise e
  File "/Users/app/Git/PolyChordLite/pypolychord/__init__.py", line 16, in <module>
    import _pypolychord
ModuleNotFoundError: No module named '_pypolychord'

[williamjameshandley]

Is the problem that you're trying to run with python3, but you installed with python, and these point to different versions on your system?

[appetrosyan]

Yes. Unfortunately the fix of using Python3 for both the install and the run doesn't work.

python3 setup.py install --user
running install
error: can't combine user with prefix, exec_prefix/home, or install_(plat)base

Either way, the suggested command needs to be adjusted for Mac OS X.

[appetrosyan]

Should I add the adjusted MakeFile into the PR for #50 ?

[williamjameshandley]

I'm about to merge #24 in the next half-hour, which makes it pip installable will change things a fair amount. I would be interested to see if this issue persists there.

[appetrosyan]

Ok! Looking forward to testing it.