Native mode error on Ubuntu

[frankhuurman]

Description

While working on an app that some people in our community center prefer to feel like an "application" instead of a page in the browser I tried to change it to native mode.

I ran it and I got this suggestion:
Native mode is not supported in this configuration. Please run "pip install pywebview" to use it.

I installed pywebview(it installed 5.2 which seems to be the latest), ran the app again and I ran into this error:

RuntimeError: A SemLock created in a fork context is being shared with a process in a spawn context. This is not supported. Please use the same context to create multiprocessing objects and Process.

I created a new file to test a minimal NiceGUI app with this:

from nicegui import ui

ui.button("test")

ui.run(native=True)

But I get the exact same error running this.

I'm using Python 3.12 .3 with NiceGUI 2.2.0(in a venv) on Ubuntu 24.0.4.1.

Any idea if this SemLock is something internal that's being funky when using native mode?

I don't believe this is related to #3813

[python-and-novella]

It is same as #1841

[frankhuurman]

Seems to be the same indeed even if we're using different versions of Ubuntu/Python/NiceGUI/pywebview.
I'll close this one and follow that one instead :)