wasmtime-py

Thanks - I just found an open issue for exposing that in the Python API: https://github.com/bytecodealliance/wasmtime-py/issues/251

I'd seen this running in a browser before (the ~3MB download is really impressive for that), but I hadn't clocked that it runs server-side with Node.js and Bun as well: https://pglite.dev/docs/ Since that's still not spinning up an actual network server, that feels like it's an alternative to SQLite - you can spin up a full in-process PostgreSQL implementation, that persists to disk, as part of an existing Node.js/Bun application. That's really interesting! I'd love to use this from Python, via something like https://github.com/wasmerio/wasmer-python or https://github.com/bytecodealliance/wasmtime-py - has anyone run PGlite via one of those wrappers yet?

Wasmtime's `wasmtime-py` embedding in python has support for Wasm Components: https://github.com/bytecodealliance/wasmtime-py#components (disclosure, I helped create it) The remaining piece of the puzzle would be to create a wit-bindgen guest generator https://github.com/bytecodealliance/wit-bindgen#guests for this build of the python interpreter. You could then seamlessly call back and forth between the host and guest pythons, without even knowing that wasmtime is under the hood.

Pyodide isn't currently supported outside of browsers, though that might change: https://github.com/pyodide/pyodide/issues/869 Either way, I couldn't figure out how to do the above sequence of steps with any of the available Python WASM runtimes - they're all very under-documented at the moment, sadly. I tried all three of these: - https://github.com/wasmerio/wasmer-python - https://github.com/bytecodealliance/wasmtime-py - https://github.com/wasm3/pywasm3