Automated Python packaging?

Thereʼs a Python module Iʼd like to package for Fedora. I made a start on Copr, but I rapidly got lost in a maze of missing dependencies and broken builds. OTOH, running `pip install` takes seconds and everything just works. I feel like someone must have come up with an easy way of building a chain of PyPI dependencies into a collection of RPMs. Am I missing a trick? -- Peter Oliver