How do people create and manage internal python packages that work together as an ensemble? I've found the packaging system with setup.py dependency_links to be pretty cumbersome and not well supported. How do people version these internal packages and manage them? Running your own pypi seems nontrivial and using github eggs/releases isn't very functional either.

My experience with python has been positive but I don't understand how people who want to create separate libraries for specific functionality tie these codebases together without using deprecated features or containerizing everything.