3.9 dropped support for Aspen "magic directories"

I was wondering if this relates to you guys. Looks like the link in the venv creation code is dead. From some googling and some common sense I deduced this might be the project that has been referred to.

Please see
https://bugs.python.org/issue37663
https://github.com/python/cpython/pull/14941

If I'm correct, I suggest you propose a fix to revert the issue.