Thanks for sharing, and thanks especially for the accompanying write-up. I love seeing this kind of "envelope pushing" in python -- things that make you stop and think "just because we can, does that mean we _should_?"<p>It reminds me of something I hacked together a while back: compatlib[0]. I knew as I was writing it that it would be a bad idea to use in "production", but felt it was interesting nonetheless. I've been meaning to write a post similar to yours: explicitly warning against using compatlib for anything serious :)<p>[0]<a href="https://github.com/tmkontra/compatlib" rel="nofollow">https://github.com/tmkontra/compatlib</a>