pip installation failing.

[matijacell]

Hi, I am trying to install pyspharm. I tried locally building the package which is sucessful (using gfortran 7.4.1), and then I tried a pip installation, which also succeeds in building the project. However, on importing anything spharm related (more specifically, _spherepack) I get the following error:

ImportError: DLL load failed while importing _spherepack: The specified module could not be found.

I'm not even sure which DLL dependencies this is referring to, however the DLL in _spherepack is definitely there.

[DWesl]

python -vvv -d -c 'import ...'

will provide more information on what it is looking for and where. Adding >python-import-spharm.log to the end might make it easier to upload the result.

EDIT: Do you have a way to print out the function names in the DLL? NumPy ran into a problem a few years back where explicitly exporting one function disabled the export of the function Python needs to create the module object (PyInit__spherepack, I think)

Are there permission issues? I've run into a need to run chmod u+x path/to/whatever.dll for imports to work a few times, but I'm not sure what the Windows equivalent is (assuming you're on Windows).

Note that this requires python<3.12, since Python removed distutils and NumPy followed with numpy.distutils, and pyspharm uses the latter.

[DWesl]

Can it find the fortran runtime library? You might need to copy that into the same directory as _spherepack.*.dll. Do you know of a Windows equivalent to ldd to print out the DLLs required by a given library?