PyQt5 – Show pop up items of ComboBox when push button is pressed

In this article we will see how we make combo box to show its elements without clicking on it. In order to do this we will use showPopup method.

Syntax : combo_box.showPopup()

Argument : It takes no argument

Action performed : It will show the pop up elements

Steps for implementation :



1. Create a combo box
2. Add items t the combo box
3. Create a push button
4. Add action to the push button such that when it get pressed method should get called
5. Inside the method show the pop up with the help of showPopup method.

Below is the implementation –

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# 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 a combo box widget
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 120, 30)
  
        # geek list
        geek_list = ["Geek", "Geeky Geek", "Legend Geek", "Ultra Legend Geek"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # creating push button
        button = QPushButton("Click !", self)
  
        # adding action to the button
        button.pressed.connect(self.action)
  
    def action(self):
  
        # showing the pop up
        self.combo_box.showPopup()
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

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Output :

After clicking on the push button




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