In a discussion on Twitter, the idea of having venv lay down a .gitignore file in a newly created virtual environment that consisted of nothing but `*` came up (https://twitter.com/codewithanthony/status/1213680829530099713). The purpose would be to help prevent people from inadvertently committing their venv to git. It seems pytest does something similar for .pytest_cache (got one complaint but have chosen to keep it otherwise).

To me this seems like a good enhancement. Since this would mostly benefit beginners then it should probably be an opt-out if we do it at all. Maybe make --no-ignore-file to opt out?

FYI Mercurial does not support subdirectory hgignore files like git does, so this may be git-specific (for now): https://www.selenic.com/mercurial/hgignore.5.html.

I'm -0.5 on this. Beginners will probably shoot themselves in the foot multiple ways using git (or any DVCS), in terms of checking things in they didn't mean to (e.g. build artifacts which are not in the venv). As they can easily undo this, I don't think we need to do this.