Small ping pong game code

import os
import turtle


screen_1 = turtle.Screen()
screen_1.title("Simple game")
screen_1.bgcolor("White")
screen_1.setup(width=1050, height=650)


left_paddle = turtle.Turtle()
left_paddle.speed(0)
left_paddle.shape("square")
left_paddle.color("black")
left_paddle.shapesize(stretch_wid=6, stretch_len=2)
left_paddle.penup()
left_paddle.goto(-400, 0)


right_paddle = turtle.Turtle()
right_paddle.speed(0)
right_paddle.shape("square")
right_paddle.color("black")
right_paddle.shapesize(stretch_wid=6, stretch_len=2)
right_paddle.penup()
right_paddle.goto(400, 0)


hit_ball = turtle.Turtle()
hit_ball.speed(45)
hit_ball.shape("circle")
hit_ball.color("Blue")
hit_ball.penup()
hit_ball.goto(0, 0)
hit_ball.dx = 5
hit_ball.dy = -5


left_player = 0
right_player = 0


sketch_1 = turtle.Turtle()
sketch_1.speed(0)
sketch_1.color("green")
sketch_1.penup()
sketch_1.hideturtle()
sketch_1.goto(0, 260)
sketch_1.write("Left Player : 0    Right Player: 0",
               align="center", font=("Courier", 24, "normal"))



def paddle_L_up():
    y = left_paddle.ycor()
    y += 20
    left_paddle.sety(y)


def paddle_L_down():
    y = left_paddle.ycor()
    y -= 20
    left_paddle.sety(y)


def paddle_R_up():
    y = right_paddle.ycor()
    y += 20
    right_paddle.sety(y)


def paddle_R_down():
    y = right_paddle.ycor()
    y -= 20
    right_paddle.sety(y)



screen_1.listen()
screen_1.onkeypress(paddle_L_up, "w")
screen_1.onkeypress(paddle_L_down, "s")
screen_1.onkeypress(paddle_R_up, "Up")
screen_1.onkeypress(paddle_R_down, "Down")

while True:
    screen_1.update()

    hit_ball.setx(hit_ball.xcor() + hit_ball.dx)
    hit_ball.sety(hit_ball.ycor() + hit_ball.dy)


    if hit_ball.ycor() > 280:
        hit_ball.sety(280)
        hit_ball.dy *= -1

    if hit_ball.ycor() < -280:
        hit_ball.sety(-280)
        hit_ball.dy *= -1

    if hit_ball.xcor() > 500:
        hit_ball.goto(0, 0)
        hit_ball.dy *= -1
        left_player += 1
        sketch_1.clear()
        sketch_1.write("Left_player : {}    Right_player: {}".format(
            left_player, right_player), align="center",
            font=("Courier", 24, "normal"))

    if hit_ball.xcor() < -500:
        hit_ball.goto(0, 0)
        hit_ball.dy *= -1
        right_player += 1
        sketch_1.clear()
        sketch_1.write("Left_player : {}    Right_player: {}".format(
            left_player, right_player), align="center",
            font=("Courier", 24, "normal"))


    if (hit_ball.xcor() > 360 and
        hit_ball.xcor() < 370) and (hit_ball.ycor() < right_paddle.ycor() + 40 and
                                    hit_ball.ycor() > right_paddle.ycor() - 40):
        hit_ball.setx(360)
        hit_ball.dx *= -1

    if (hit_ball.xcor() < -360 and
        hit_ball.xcor() > -370) and (hit_ball.ycor() < left_paddle.ycor() + 40 and
                                     hit_ball.ycor() > left_paddle.ycor() - 40):
        hit_ball.setx(-360)
        hit_ball.dx *= -1