[mdboom]

Cython works for ahead-of-time compilation. (Pandas requires it, for example). Making it work in the browser would also mean putting a C compiler there, which people have done. I have no idea how well that would all hold together, though.

[jononor]

Ideally Cython would allow to compile directly to Webassembly (and maybe using Pyodine converters), without going through C and requiring a C compiler also.

Of course that is a huge job and might very well never happen.

[bobbylarrybobby]

Web assembly?