Hi HN! I built jsrun, a Python library that embeds the V8 (https://v8.dev) engine to run JavaScript inside Python
https://github.com/imfing/jsrun
Python does not have great options for sandboxed or isolated code execution, and I was hoping for something similar to the Cloudflare Workers model that provides lightweight isolates
jsrun provides:
– a fully isolated JavaScript runtime backed by V8
– each runtime spins up a V8 isolate in <5ms, runs on its own thread with GIL released, keeping JavaScript execution isolated Python
– ability to expose Python functions and data directly to the JS environment
built with Rust/PyO3, shipped as wheels with no extra dependencies
It would be good for cases like code playground, user scripting, AI generated code execution, or anywhere that needs a JS runtime inside a Python application
Would love any feedback, ideas!
Comments URL: https://news.ycombinator.com/item?id=45956165
Points: 1
# Comments: 0
Source: github.com
