If you're just starting with the language though, you might only have one project for a long time, or your projects might have disjoint dependencies (or close e

If you're just starting with the language though, you might only have one project for a long time, or your projects might have disjoint dependencies (or close enough; I'm imagining someone with both a Django and pygame project). And you can learn a lot without any libraries at all. As a teen, I went a couple years and learned a lot before I learned how to use virtualenv. You'll want it sooner, but it absolutely shouldn't be a barrier to getting your feet wet.