[PyFeyn] problem with installation

[Helmut Eberl]

Dear authors,

I have install pyfeyn on my MacBookPro (with Arm, Monterey).
With 'pip show pyfeyn' I get

Name: pyfeyn
Version: 1.0.0
Summary: An easy-to-use Python library to help physicists draw Feynman 
diagrams.
Home-page: http://projects.hepforge.org/pyfeyn/
Author: Andy Buckley, Georg von Hippel
Author-email: pyfeyn at projects.hepforge.org
License: GPL
Location: /Applications/anaconda3/lib/python3.6/site-packages
Requires:
Required-by:

When I run a simple example I get
Warning: hepnicenames package not found!

and then further errors till
/usr/local/texlive/2022/texmf-dist/tex/latex/hepnames/hepnicenames.sty
there it hangs

I use TeXShop and checked there is hepnames installed.

My python is:
Python 3.6.3 |Anaconda custom (64-bit)| (default, Oct  6 2017, 12:04:38)
[GCC 4.2.1 Compatible Clang 4.0.1 (tags/RELEASE_401/final)] on darwin

What can and shall I do?

Best wishes
                     Helmut Eberl