Open up any serious Python project and you'll find significant dependencies. Math, graphics, IO, stats, ML... anything you really want to do requires dependencies. In fact, one of my biggest issues with Python is the cross-platform incompatibility of many packages which makes it a terrible choice for my deployment. (Even worse if the project has Cython components!)

I often end up having to scour github for forked pywheels that aren't vetted. Which are then cloned ad infinitum.

Its a tradeoff between extensibility and open source / free software, and robustness.