Better solution for requirements

[leoneifler]

Currently, we have requirements.txt as well as requirements_3.9.txt. With even newer python versions (e.g. 3.11) neither works and I had to change up the numpy and scipy versions to newer ones than in requirements_3.9.txt.

Does anyone see a good solution how the pip install can work with all these different versions? I can code it but I don't really know a clean solution right now (having a bunch of these requirement files and then choosing based on the python version maybe?)