PyQt5 QSpinBox – Dumping object tree

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In this article we will see how we can dump the object tree of the spin box, dumping object tree means to dump a tree of children to the debug output. Object tree is a tree data structure holding child objects of spin box at the nodes.

In order to do this we use dumpObjectTree method

Syntax : spin_box.dumpObjectTree()

Argument : It takes no argument

Return : It returns None

Note: Before Qt 5.9, this function was not constant function.

Below is the implementation

# importing libraries 
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui 
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys 
  
  
class Window(QMainWindow): 
  
    def __init__(self): 
        super().__init__() 
  
        # setting title 
        self.setWindowTitle("Python ") 
  
        # setting geometry 
        self.setGeometry(100, 100, 600, 400) 
  
        # calling method 
        self.UiComponents() 
  
        # showing all the widgets 
        self.show() 
  
        # method for widgets 
    def UiComponents(self): 
        # creating spin box 
        self.spin = QSpinBox(self) 
  
        # setting geometry to spin box 
        self.spin.setGeometry(100, 100, 250, 40) 
  
        # setting range to the spin box 
        self.spin.setRange(0, 999999) 
  
        # setting prefix to spin 
        self.spin.setPrefix("Prefix ") 
  
        # setting suffix to spin 
        self.spin.setSuffix(" Suffix") 
  
        # dumping object tree of spin box 
        self.spin.dumpObjectTree() 
  
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
window.spin.setFocus() 
# start the app 
sys.exit(App.exec()) 