[rhizome31]

Polyglots might also be interested in asdf (https://github.com/asdf-vm/asdf). It's like Pyenv but supports various languages via a plugin system (eg. https://github.com/danhper/asdf-python).

[Bogdanp]

For those wondering (like I did): it doesn't seem like this has any relation to Common Lisp's ASDF.