> On Sep 4, 2019, at 1:52 PM, paul basinger <paulcb...@gmail.com> wrote:
>
> Hello,
>
> After making an exe from pyinstaller, the code below causes the main window
> to duplicate repeatedly. I haven't tried it with QProcess yet but I started
> looking into it. Anyone know python's multi-processes equivalent in
> PySide2/QT. It runs fine when run normally with python (3.7).
>
> Thanks,
>
> Software Engineer
> Paul Basinger
> paulcb...@gmail.com <mailto:paulcb...@gmail.com>
Try adding, at the very beginning (before you do any PySide2 imports):
from multiprocessing import freeze_support
I want to say that’s what fixed this for me. It’s fine to import this even when
not frozen, but it should fix things when using pyinstaller.
---
Israel Brewster
Software Engineer
Alaska Volcano Observatory
Geophysical Institute - UAF
2156 Koyukuk Drive
Fairbanks AK 99775-7320
Work: 907-474-5172
cell: 907-328-9145
>
> import sys
> import threading
> import random
> from PySide2.QtWidgets import QApplication, QLabel
> from PySide2.QtCore import QThread
> from multiprocessing import Process, Queue, Manager
>
> def hello(q):
> q.put(1)
>
> class AppThread(QThread):
> def __init__(self, parent):
> super(AppThread, self).__init__(parent)
>
> def run(self):
> self.loadApp()
>
> def loadApp(self):
> q = Queue()
> p = Process(target=hello, args=(q,))
> p.start()
> q.get(timeout=1)
> p.join()
>
> if __name__ == "__main__":
> app = QApplication(sys.argv)
> label = QLabel("Hello World")
> label.show()
> thread = AppThread(app)
> thread.start()
> sys.exit(app.exec_())
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