jispy VS cinder

Embed a JavaScript interpreter like jispy inside the Python program and use it to parse & execute the JS code.

Meta is actually contributing directly to upstream cpython. If you really wanted to, the internal fork is also open source: https://github.com/facebookincubator/cinder

Just one example: last year Meta open-sourced Cinder, which powers Instagram and provides sizeable speedups compared to CPython.

I used to work on the Cinder JIT and can help document any passes you find interesting or confusing.

You might enjoy Cinder then. It's based on CPython so it is nearly 100% compatible.

https://github.com/facebookincubator/cinder/

Disclaimer: I used to work on it.

I think Cinder's Static Python, which also performs runtime type checking, is more ambitious. Though it's not production ready yet.

Here's a fork that implements that https://github.com/facebookincubator/cinder - it might be nice to one day get that up streamed but obviously it'll be controversial and it certainly needs more time to bake. Hopefully at some point we can make it a pip installable extension though.

The other thing that was interesting to me, was the potential of type annotations to help make for a faster, safer experience on the compiler end of things. One example is seen in Meta’s Cinder project, on the docs it explains how typing can be used to reduce the number of steps for the compiler ([cinder/static_python.rst at cinder/3.8 · facebookincubator/cinder · GitHub](https://github.com/facebookincubator/cinder/blob/cinder/3.8/CinderDoc/static_python.rst)), making it more effective.