Easy to read 60 lines of code, minimal threading example, shows blank widget! 😊

[SGaist]

What version of PyQt5 and Qt are you using ?
On what OS ?

I have both thread outputs here.

[enjoysmath]

@SGaist

Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 16:07:46) [MSC v.1900 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

Name: PyQt5
Version: 5.12.1
Summary: Python bindings for the Qt cross platform UI and application toolkit
Home-page: https://www.riverbankcomputing.com/software/pyqt/
Author: Riverbank Computing Limited
Author-email: info@riverbankcomputing.com
License: GPL v3
Location: c:\python36-32\lib\site-packages
Requires: PyQt5-sip
Required-by: QScintilla, PyQtChart

[enjoysmath]

I know I'm running 32-bit python because it's installed to C:\Python36-32 and that's my convention. I think I updated everything a few days ago in order to look at a pyinstaller issue.

[enjoysmath]

@SGaist

What are your versions, maybe I should try those out?

[SGaist]

Just tested with the latest version available on macOS through pip and it worked as expected.

[enjoysmath]

This post is deleted!

[enjoysmath]

@SGaist

I'm trying out Python 3.7 now, but maybe PyQt5 won't even install, so... I'll try some things out. Any ideas? Should I just combine the work of the two threads into one thread, since I do have exactly the same loop sleep set of 1 ms (the practical min).

I'm testing 3.7.3 both 32 and 64-bit.

[enjoysmath]

I tried 3.7.3 64-bit and the latest PyQt5 did install. However, the minimal app is having the exact same issue on my system.

So I will just combine the different threads all into one, and switch between the cases.

[SGaist]

Might be a silly test, but did you try using the QThread method to start your thread ? As I wrote earlier, I don't know how startRunning is implemented.

[enjoysmath]

@SGaist said in Easy to read 60 lines of code, minimal threading example, shows blank widget! 😊:

Might be a silly test, but did you try using the QThread method to start your thread ? As I wrote earlier, I don't know how startRunning is implemented.

Nope, that had no effect.