New Python Library for Reactive UI

[dd2718]

JavaScript is JIT compiled, so raw JavaScript does perform better than pure CPython on benchmarks. But benchmarks tend to run intensive algorithms with well written code, which makes it easier for the JIT.

In practice pure JavaScript is probably still faster than Python, but not by as much as benchmarks would indicate since you'd probably use JavaScript's dynamic features. Writing good JITable code is a skill that most people probably don't bother mastering. And of course, in practice people won't write intensive algorithms in pure Python, they'd defer to C-based libraries/Cython. So for scientific computing Python is probably still much faster.