I prefer to always keep the system wide Python as clean as possible; I always use a virtual environment for my Python projects. That way I can install whatever Python packages from PyPi in an isolated environment.
I assume when installing this package, it will install the Python dependencies in the system wide Python? Is there a way of preventing this and keep the system Python “clean”…?
I’m not a python user at all, so please don’t consider this post as the final truth.
I also assume an AUR package could “pollute” your existing python system.
If you uninstall the AUR package, then (at least most of) your previous python system should be returned to the earlier state.
Anyway, I’d use e.g. VirtualBox where the AUR package can be installed without disturbing your host system’s python framework.
Python is already installed on your system, and the same advice holds. If you have a different question then it would be a good idea to open a new thread.