Well I started with pip because it's what I was told to use. But it was slow and had footguns. And then I started using virtualenv, but that only solved part of the problem. So I switched to conda, which sometimes worked but wrecked my shell profile and often leads to things mysteriously using the wrong version of a package. So someone told me to use pipenv, which was great until it was abandoned and picked up by someone who routinely broke the latest published version. So someone told me to use poetry, but it became unusably slow. So I switched back to pip with the built-in venv, but now I have the and problems I had before, with fewer features. So I switched to uv, because it actually worked. But the dependency I need is built and packaged differently for different operating systems and flavor of GPU, and now my coworkers can't get the project to install on their laptops.

I'm so glad all the Python packaging challenges are "solved"