I noticed that time.sleep() is a no op in the pyodide's cpython webassembly runtime. As cpython implements it using select.select()'s timeout, it's not really a surprise that it's not supported by pyodide.

That said I have to call a javascript function from the python runtime and the js function will do asynchronous stuff before being able to return the value. eg:

from js import my_async_javascript_function

I first tried to do polling but without time.sleep() it's not doable.

How can I handle this properly with pyodide ? Through Promise ? async/await ? ... I could not find a clue for this, any hint would be appreciated.

Thanks