The Secret

Programmers subconsciously fear their open source code will be stolen and reused in commercial software.
So they make it as incompatible, useless and obscure as possible.

>>5
What's "a Python"? I'm not being facetious, I'm wondering what your criteria are. Perl 6 has roughly infinite obvious ways to do everything, sigils, brace block syntax, no GIL and actual types... you can't get much less Python than that.