I can't add anything to that. If the Python community starts bringing features into the language by argumentatively besieging Guido, and if these compromises are then realized according to the motto "a syntax that everyone likes equally little", then it's time to switch languages. Ruby looks nice and the available modules for various purposes easily match Python. Or Prothon - though the available modules are still very sparse there. Or simply back to good old MzScheme? Here's the original article.