QThread create in PyQt5

[VijayalakshmiSundaravaradhan]

AttributeError: type object 'QThread' has no attribute 'create'

Here is my code.

from PyQt5.QtCore import QThread

def fun(num):
print(num)

thread1 = QThread.create(fun)
thread1.start()

But Qt documentation says there is a function called create since Qt 5.10. I am using PyQt5 5.11.3. Someone please help me with this.

[Volodymyr14]

@VijayalakshmiSundaravaradhan Better construct and use threads as in this article described https://medium.com/@webmamoffice/getting-started-gui-s-with-python-pyqt-qthread-class-1b796203c18c

[Volodymyr14]

@Volodymyr14 You can try something like this:

from PyQt5 import QtCore


class YouThread(QtCore.QThread):
    
    def __init__(self, parent=None, num=None):
        QtCore.QThread.__init__(self, parent)
        self.num = num

    def run(self):
        print(self.num)


thread = YouThread(num=14)
thread.start()

[VijayalakshmiSundaravaradhan]

But why is the create function not available?

[Volodymyr14]

@VijayalakshmiSundaravaradhan
https://doc.qt.io/qt-5/qthread.html#create

[Volodymyr14]

@VijayalakshmiSundaravaradhan If You want to use threads in the manner You try, You can use the Python stdlib threading module.

[VijayalakshmiSundaravaradhan]

Thank You @Volodymyr14

[Volodymyr14]

@VijayalakshmiSundaravaradhan Your problem is solved? The error that You provides in Your code completely describing why. This related to both PyQt5 and PySide2

[VijayalakshmiSundaravaradhan]

@Volodymyr14 I decided to use threading module whenever I need to run a function in a separate thread. Do you say that Qthread.Create cannot be used in both PyQt5 and PySide2?

[Volodymyr14]

@VijayalakshmiSundaravaradhan Very well. You can use the threading module like this:

import threading

def fun(num):
    for i in range(num):
        print(i)

thread1 = threading.Thread(target=fun, args=(100,))
thread1.start()

[Alfalfa]

#!/usr/bin/python3
# Threading example with QThread and moveToThread (PyQt5)
import sys
import time
from PyQt5 import QtWidgets, QtCore

class WorkerThread(QtCore.QObject):
    signalExample = QtCore.pyqtSignal(str, int)

    def __init__(self):
        super().__init__()

    @QtCore.pyqtSlot()
    def run(self):
        while True:
            # Long running task ...
            self.signalExample.emit("leet", 1337)
            time.sleep(5)

class Main(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()
        self.worker = WorkerThread()
        self.workerThread = QtCore.QThread()
        self.workerThread.started.connect(self.worker.run)  # Init worker run() at startup (optional)
        self.worker.signalExample.connect(self.signalExample)  # Connect your signals/slots
        self.worker.moveToThread(self.workerThread)  # Move the Worker object to the Thread object
        self.workerThread.start()

    def signalExample(self, text, number):
        print(text)
        print(number)

if __name__== '__main__':
    app = QtWidgets.QApplication([])
    gui = Main()
    sys.exit(app.exec_())