import ENDFtk fails trying to import module "tools"

[g2boojum]

In [1]: import ENDFtk
---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
ModuleNotFoundError: No module named 'tools'

The above exception was the direct cause of the following exception:

ImportError                               Traceback (most recent call last)
Cell In[1], line 1
----> 1 import ENDFtk

ImportError: initialization failed

I'm running ipython directly from the build directory. Presumably this is coming from my ENDFtk.cpython-314-x86_64-linux-gnu.so file, since I can see the python::module::import( "tools" ); line in ENDFtk.python.cpp. I assume the "tools" module is internal to the library? Help?

Many thanks!

Fedora 43
python 3.14.2

[g2boojum]

Setting a local install directory and running make install seems to have put the tools and the ENDFtk .so files in an appropriate site-packages directory, so I that works well enough, I suppose?