This is an utterly ridiculous idea and I'm amazed it works at all, well done :)
If the CPython API is so easy to get going on emscripten I wonder if anyone has tried using emscripten to compile Nuitka (http://nuitka.net/) output to Asm.js yet?
"This is an utterly ridiculous idea and I'm amazed it works at all..."
Yes, reminds me of the people that like to run NES emulators, inside of Dreamcast emulators, inside of their virtual PC running on a Mac. Yes it's impressive, but as the author admits running a VM inside of a VM results in a "two orders of magnitude" loss of performance.
If the CPython API is so easy to get going on emscripten I wonder if anyone has tried using emscripten to compile Nuitka (http://nuitka.net/) output to Asm.js yet?