This approach is full of footguns. Forget to install virtualenv? Have fun getting rid of packages in your global system. Sub-dependencies? You'll have to thin

This approach is full of footguns. Forget to install virtualenv? Have fun getting rid of packages in your global system. Sub-dependencies? You'll have to think of a strategy for it. Most people don't and the reproducibility of their project suffers. Developer vs production dependencies ? You'll have to think of a strategy for it. And I think I'm forgetting one, but that's already enough.