PyQt5 Run function after displaying window

user_5708752 0
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I would like to call a function after the GUI displays. If I run function in init it prevents gui from displaying until after it is completed.

class MyApp(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):
        QtWidgets.QMainWindow.__init__(self)
        Ui_MainWindow.__init__(self)
        self.setupUi(self)
        self.function() #waits for this to finish until gui displayed
    def function(self):
        self.guiBox.setValue(initData)
        #inits stuff, takes 5 seconds

The function initializes a piece of equipment via serial port... It takes s few seconds, and it takes gui attributes and updates gui display boxes.

pyqt5 pyqt python-3.x python
4 Answers

Add single shot timer 1 ms and after call function

  class MyApp(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):
      QtWidgets.QMainWindow.__init__(self)
      Ui_MainWindow.__init__(self)
      self.setupUi(self)
      QTimer.singleShot(1,self.function) #waits for this to finish until gui displayed
    def function(self):
      self.guiBox.setValue(initData)
      #inits stuff, takes 5 seconds
user_126954010
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