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PyQt5 – How to add action to a button ?
  • Last Updated : 22 Apr, 2020

In this article we will see how to set action to a push button. QPushButton is a simple button in PyQt, when clicked by a user some associated action gets performed. For adding this button into the application, QPushButton class is used.

When the button is pressed it should perform some action, in order to add action to a button we will use clicked.connect method.

Syntax : button.clicked.connect(function)

Argument : It takes function as a argument.

Action performed: When button will be clicked it will call the passes function.



Code :

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# importing libraries
from PyQt5.QtWidgets import * 
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 push button
        button = QPushButton("CLICK", self)
  
        # setting geometry of button
        button.setGeometry(200, 150, 100, 30)
  
        # adding action to a button
        button.clicked.connect(self.clickme)
  
    # action method
    def clickme(self):
  
        # printing pressed
        print("pressed")
  
# 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 :

When we tap on the button.

pressed

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