Handle mouse events in Python - OpenCV

import cv2


# read image
img = cv2.imread('image.jpg')

# show image
cv2.imshow('image', img)
 
#define the events for the
# mouse_click.
def mouse_click(event, x, y, 
                flags, param):
    
    # to check if left mouse 
    # button was clicked
    if event == cv2.EVENT_LBUTTONDOWN:
        
        # font for left click event
        font = cv2.FONT_HERSHEY_TRIPLEX
        LB = 'Left Button'
        
        # display that left button 
        # was clicked.
        cv2.putText(img, LB, (x, y), 
                    font, 1, 
                    (255, 255, 0), 
                    2) 
        cv2.imshow('image', img)
        
        
    # to check if right mouse 
    # button was clicked
    if event == cv2.EVENT_RBUTTONDOWN:
         
        # font for right click event
        font = cv2.FONT_HERSHEY_SCRIPT_SIMPLEX
        RB = 'Right Button'
        
        # display that right button 
        # was clicked.
        cv2.putText(img, RB, (x, y),
                    font, 1, 
                    (0, 255, 255),
                    2)
        cv2.imshow('image', img)

cv2.setMouseCallback('image', mouse_click)
 
cv2.waitKey(0)

# close all the opened windows.
cv2.destroyAllWindows()