I love this - if every language could have something like this written up it would be amazing. It just about fits into my attention span!
Python is actually much bigger nowadays -- I would challenge someone to come up with something this simple that doesn't leave out a lot of stuff you will encounter in real code.
The extra features ("bloat") do matter. I like the idea of Lua a lot, but when I started programming in it, it unfortunately felt like a less capable Python to me.
I don't really understand the attraction, except in certain niches like Lua as an embedded scripting engine, when you really need something that can be trivially sandboxed.
Isn't that exactly the reason JavaScript exists in the first place (i.e.: an embedded scripting engine for browsers) ?