See http://pythontutor.com/ and http://www.pgbovine.net/cde.html - but really, all of https://github.com/pgbovine?tab=repositories is worth looking at.
They write thoughtful blog posts on self-reflection, building an inclusive community and working hard to improve. These are values I identify with so it's disappointing not to be given an opportunity to participate, and no feedback after putting effort into the application. On the other hand they have a popular program and have to reject a lot of people.
During my time at Recurse Center (hackerschool at the time), there were people programming away in a bunch of different languages. I didn't actually think python was a dominant one. Maybe it is now.
My best advice to anyone who wants to attend recurse center is that: you get out of it what you put into it. You are situated in a really great environment with a potentially deep pool of experience and knowledge. Don't expect to be spoon fed information. Actively go out and talk to people and pair program with people.
On the other hand, maybe it's precisely because the two languages are similar?
I've also heard from certain of their _non_ high profile alums and they've spoken about feeling left out (because most of the others were hacking away in Python whereas she was a Ruby developer and felt isolated). Since then I take everything said and written about the Recurse Center with a grain of salt.