Silhouette freeze in multi-thread

Silhouette
1

I am adding a menu on Silhouette Startup. But it freezes on opening, because of the use of while loop in one of the options. I am threading for this loop, for the loop is still called in main thread, where Silhouette is running. Below is a code snippet example of function countdown called using thread while opening Silhouette:

import time
def countdown(n):
    while n > 0:
        print('T-minus', n)
        n -= 1
        time.sleep(5)
# Create and launch a thread
from threading import Thread
t = Thread(target = countdown, args =(10, ))
t.start()

The opening of Silhouette freezes along with Menu load, while waiting for the loop to end, even when I am using threading. Is there some other way to separate the Silhouette main thread with worker thread.

2

We haven’t tested Silhouette with Python threads.
But you can use Qt threads via the PySide2 API.

3

Have you had any success with threading in Silhouette since this post? I find a widget I created when launched standalone, functions perfectly fine with a PySide2 QThread, but within silhouette the widget begins failing the moment I attempt to start a Qthread.

4

Are you creating the widget from inside the thread? If so, Qt doesn’t support that - widgets should be created/updated from the main thread.

5

My main widget is created and updated in the main thread. I emit a signal from the Qthread Worker wtih the data I need. The threading works when run outside of silhouette.

6

I would need to know a lot more about what the widget is doing. Can you PM me your script?