cannot find _nmtbin module

[apullen1]

I installed pymaster using conda on my laptop in python v3.8.3, and it runs fine. However, I get an error when running it on my supercomputer account (I don't have root access). I have an anaconda environment, and it installs with python v3.8.3 . I've added the pymaster directory to my python path using the command

export PYTHONPATH=$PYTHONPATH:/home/[username]/.conda/pkgs/namaster-1.2.2-py39h2bc24e2_1/lib/python3.9/site-packages/

When I import the pymaster module, I get the following error:

In [1]: import pymaster as nmt

ModuleNotFoundError Traceback (most recent call last)
in
----> 1 import pymaster as nmt

~/.conda/pkgs/namaster-1.2.2-py39h2bc24e2_1/lib/python3.9/site-packages/pymaster/init.py in
48 in the form of HEALPix maps exclusively with RING ordering.
49 """
---> 50 from pymaster import nmtlib as lib # noqa
51 import numpy as np # noqa
52 from pymaster.utils import ( # noqa

~/.conda/pkgs/namaster-1.2.2-py39h2bc24e2_1/lib/python3.9/site-packages/pymaster/nmtlib.py in
11 # Import the low-level C/C++ module
12 if package or "." in name:
---> 13 import _nmtlib
14 else:
15 import _nmtlib

ModuleNotFoundError: No module named '_nmtlib'

The code doesn't seem to be able to find "_nmtbin". Does the problem have to do with pymaster expecting python v3.9 while my machine runs v3.8.3 ? Any help resolving this would be appreciated.

[ShreeHariMittal]

I'm having the same problem. It's not able to find module '_nmtlib', and I have python 3.10. Not sure if it's a version problem

[damonge]

Hi both. With apologies for the delay, first of all, can I check if this was installed via pip or conda-forge?

Are you able to find the path to the _nmtlib*.so file?

[ShreeHariMittal]

Hi. The installation with pip or conda didn't work for me. I installed by setup.py. Within the pymaster library, I do not see a _nmtlib*.so file, I have is nmtlib.py.

[damonge]

You may have already fixed this but, in case it helps, you could try installing the latest version in pip (https://pypi.org/project/pymaster/2.0b0/ - currently pre-release, but will move to stable soon).