Load JS code from wheel?

[dnalor123]

I have a wheel that is built with Pyodide (in tree). Now I'd like the wheel's Python code to call some JavaScript functions via Pyodide's js module.

Is there a way to include JavaScript files in a wheel? How would one load/import these?

For what it's worth, I'm using Pyodide as a Jupyter Lite kernel, so it runs in a web worker.

[ryanking13]

You can read the JS file and run it with pyodide.code.run_js.

import pathlib
js_code = pathlib.Path("path_to_the_js_file.js").read_text()

import pyodide.code
pyodide.code.run_js(js_code)

Otherwise I think you could try something like this: https://stackoverflow.com/questions/57121467/import-a-module-from-string-variable

[dnalor123]

Thanks for the answer. Although this works, I actually want to import JavaScript modules.

Trying to follow your suggestion:

abc = await js.eval("(async () => { return await import('abc.js') })()")

But now abc is a promise. Is there a way set this up so that one can call abc.f() instead of (await abc).f()?

[ryanking13]

As the import method works asynchronous, for now, it is not possible to use it synchronously in Python. With JavaScript Promise Integration, I think you can do it, but it is only available under experimental flag in chrome.