How to implement PYQT5 Realtime ProgressBar?

Question

Python

There is a PyQt5 application, when you click on a button, a cycle is launched with a length of about a thousand operations. I need the progressbar to be updated after each scrolling of the loop, at the moment this is implemented as follows:

class MyForm(QtWidgets.QDialog): #Окно отправки сообщения
    def __init__(self, parent = None):
        super(MyForm, self).__init__(parent)
        self.form = Ui_Dialog() 
        self.form.setupUi(self)
        self.progressBar = QtWidgets.QProgressBar(self) #Создание прогресбара
        self.progressBar.setGeometry(QtCore.QRect(80, 740, 811, 23))
        self.btn = QPushButton("SomebodyButton")
        self.btn.pressed.connect(self.start)
   def SomebodyButton(self):
        procent = 100 / len(mas) #Расчёт прогрес бара
        value = 0 #Начальное значение         
        for i in range(mas):
           somebodyFunc()
           for i in range(round(procent) + 1):
              value += 1
              self.progressBar.setValue(value)
              time.sleep(0.1)

What are the options for optimizing this code using multiple processes, that is, updating the progressbar in parallel with the code execution?

Answer 1

Run from the QThread button click handler, in which to loop and send a signal to the main thread at each iteration, and in the main thread to update the progressbar in the signal handler.