wrong pong

#Pong in Python
import turtle
import winsound
import os
import json


# sound
relative_dir = os.path.dirname(__file__)
sound_file = os.path.join(relative_dir, 'bounce.wav')
config_file_path = os.path.join(relative_dir, 'config.json')

with open(config_file_path) as config_file:
    data = json.load(config_file)
bounce_sound = data['bounce_sound']

wn = turtle.Screen()
wn.title("Pongchamp")
wn.bgcolor(data["wn.bgcolor"])
wn.setup(width=800, height=600)
wn.tracer(0)


# score
score_a = 0
score_b = 0


# Paddle a
paddle_a = turtle.Turtle()
paddle_a.speed(0)
paddle_a.shape("square")
paddle_a.color(data["paddle_a.color"])
paddle_a.shapesize(stretch_wid=5, stretch_len=1)
paddle_a.penup()
paddle_a.goto(-350, 0)


# Paddle b
paddle_b = turtle.Turtle()
paddle_b.speed(0)
paddle_b.shape("square")
paddle_b.color(data["paddle_b.color"])
paddle_b.shapesize(stretch_wid=5, stretch_len=1)
paddle_b.penup()
paddle_b.goto(350, 0)


# ball
ball = turtle.Turtle()
ball.speed(0)
ball.shape("square")
ball.color(data["ball.color"])
ball.penup()
ball.goto(0, 0)
ball.dx = 0.1
ball.dy = -0.1


# pen
pen = turtle.Turtle()
pen.speed(0)
pen.color("white")
pen.penup()
pen.hideturtle()
pen.goto(0, 260)


# scoreupdate
def scoreUpdate(pen, data):
    pen.write("{}  {}  {} {}".format(
        data["player_name_a"], score_a, data["player_name_b"], score_b), align="center", font=("Courier", 24, "normal"))


scoreUpdate(pen, data)


# function
def paddle_a_up():
    y = paddle_a.ycor()
    y += 20
    paddle_a.sety(y)


def paddle_a_down():
    y = paddle_a.ycor()
    y += -20
    paddle_a.sety(y)


def paddle_b_up():
    y = paddle_b.ycor()
    y += 20
    paddle_b.sety(y)


def paddle_b_down():
    y = paddle_b.ycor()
    y += -20
    paddle_b.sety(y)


# def ballcollided(bounce, "(winsound.PlaySound("/bounce.wav", winsound.SND_ASYNC)):
def bounce(winsound):
    winsound.PlaySound(sound_file, winsound.SND_ASYNC)



# keybind
wn.listen()
wn.onkeypress(paddle_a_up, data["paddle_a_up"])
wn.onkeypress(paddle_a_down, data["paddle_a_down"])
wn.onkeypress(paddle_b_up, data["paddle_b_up"])
wn.onkeypress(paddle_b_down, data["paddle_b_down"])


# main game loop
while(score_a < 1 and score_b < 1):
    wn.update()

    # Move the ball
    ball.setx(ball.xcor() + ball.dx)
    ball.sety(ball.ycor() + ball.dy)

    # border checking
    if ball.ycor() > 290:
        ball.sety(290)
        ball.dy *= -1
        bounce(winsound)

    if ball.ycor() < -290:
        ball.sety(-290)
        ball.dy *= -1
        bounce(winsound)

    if ball.xcor() > 390:
        ball.goto(0, 0)
        ball.dx = .1
        ball.dx *= -1
        score_a += 1
        pen.clear()
        scoreUpdate(pen, data)

    if ball.xcor() < -390:
        ball.goto(0, 0)
        ball.dx = .1
        ball.dx *= 1
        score_b += 1
        pen.clear()
        scoreUpdate(pen, data)


# paddle and ball collision
    if (ball.xcor() > 340 and ball.xcor() < 350) and (ball.ycor() < paddle_b.ycor() + 40 and ball.ycor() > paddle_b.ycor() - 40):
        ball.setx(340)
        ball.dx *= -1
        ball.dx -= .05
        bounce(winsound)

    if (ball.xcor() < -340 and ball.xcor() > -350) and (ball.ycor() < paddle_a.ycor() + 40 and ball.ycor() > paddle_a.ycor() - 40):
        ball.setx(-340)
        ball.dx *= -1
        ball.dx += .05
        bounce(winsound)

#def winner(data):
  #  if (score_a > score_b):
   #     winner = (data["player_name_a"]

 #winner = (data["player_name_b"]



while(True):
    wn.update()
    # Pen
    pen = turtle.Turtle()
    pen.speed(0)
    pen.color("white")
    pen.penup()
    pen.hideturtle()
    pen.write("{}  {}  {} {}".format(
    data["player_name_a"], score_a, data["player_name_b"], score_b), align="center", font=("Courier", 24, "normal"))
    data["player_name_a"], score_a, data["player_name_b"], score_b), align="center", font=("Courier", 24, "normal"))