That's awesome, but I think it would be much more accessible for newbies if they included download links and installation steps. I have friends who might be interested in this for whom just the installation could be a daunting hurdle.
To me the biggest hurdle in programming is not the programming itself but the sys-admin effort to setup a development environment.
Compare that to the Firefox download page, where it auto-detects everything it needs to know about your computer and gives you one simple, unambiguous giant "download me" button that just works. If this was a conversion funnel, python would be losing most of their money (i.e. potential users) at this step.
The old cruel IRC days of RTFM made me a better, more independent problem solver.
Click on Python.
I'm not sure how many of the Khan Academy tutorials you could get through...