Python code to control mouse cursor and click

import cv2 as cv
import mediapipe as mp
import pyautogui as gui


# Step 1 
cap = cv.VideoCapture(0)
hand_detector = mp.solutions.hands.Hands()
drawing_utils = mp.solutions.drawing_utils
screen_width, screen_height = gui.size()
index_y=0
index_x=0

while True:
    _, frame =cap.read()
    frame = cv.flip(frame,1)
    frame_height, frame_width, _ = frame.shape
    
    rgb_frame = cv.cvtColor(frame, cv.COLOR_BGR2RGB)
    output = hand_detector.process(rgb_frame)
    hands = output.multi_hand_landmarks
    
    if hands:
        for hand in hands:
            drawing_utils.draw_landmarks(frame, hand)
            landmarks = hand.landmark
            for id, landmark in enumerate(landmarks):
                x = int(landmark.x*frame_width)
                y = int(landmark.y*frame_height)

                if id==8:
                    cv.circle(img=frame, center=(x,y), radius=10, color=(0,255,150))
                    index_x = screen_width/frame_width*x
                    index_y = screen_height/frame_height*y
                    
                    gui.moveTo(index_x,index_y)
                
                if id==4:
                    cv.circle(img=frame, center=(x,y), radius=10, color=(0,255,150))
                    thumb_x = screen_width/frame_width*x
                    thumb_y = screen_height/frame_height*y
                    if abs(index_y-thumb_y)<22 or abs(index_x-thumb_x)<22:
                        gui.click()
                        gui.sleep(1)
                    
    cv.imshow('Virtual Mouse', frame)
    cv.waitKey(1)