PythonでPongをコード化するには、Pythonでのゲーム開発のための一般的なライブラリであるPygameライブラリを使用することができます。

以下は簡単なコード例です：

```
import pygame
import sys

# Initialize the Pygame library
pygame.init()

# Set up the display window
width = 500
height = 500
window = pygame.display.set_mode((width, height))
pygame.display.set_caption("Pong")

# Define the ball and paddle variables
ball_x = width / 2
ball_y = height / 2
ball_speed_x = 3
ball_speed_y = 3
paddle_x = width / 2
paddle_y = height - 20
paddle_width = 60
paddle_height = 10

# Start the game loop
while True:
    # Handle events
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    # Move the ball
    ball_x += ball_speed_x
    ball_y += ball_speed_y

    # Check for ball-wall collisions
    if ball_x <= 0 or ball_x >= width - 10:
        ball_speed_x = -ball_speed_x
    if ball_y <= 0 or ball_y >= height - 10:
        ball_speed_y = -ball_speed_y

    # Check for ball-paddle collisions
    if ball_y >= paddle_y and ball_x >= paddle_x and ball_x <= paddle_x + paddle_width:
        ball_speed_y = -ball_speed_y

    # Clear the screen
    window.fill((0, 0, 0))

    # Draw the ball
    pygame.draw.circle(window, (255, 255, 255), (int(ball_x), int(ball_y)), 5)

    # Draw the paddle
    pygame.draw.rect(window, (255, 255, 255), (paddle_x, paddle_y, paddle_width, paddle_height))

    # Update the display
    pygame.display.update()
```

このコードはシンプルなゲームウィンドウを作成し、動いて壁に跳ね返るボールと、プレイヤーがボールを跳ね返すために操作できるパドルをレンダリングします。

この例に、得点やゲームオーバー条件などの機能を追加して拡張することができます。
To code Pong in Python, you can use the Pygame library which is a popular library for game development in Python.

Here's a simple code example:

import pygame
import sys

# Initialize the Pygame library
pygame.init()

# Set up the display window
width = 500
height = 500
window = pygame.display.set_mode((width, height))
pygame.display.set_caption("Pong")

# Define the ball and paddle variables
ball_x = width / 2
ball_y = height / 2
ball_speed_x = 3
ball_speed_y = 3
paddle_x = width / 2
paddle_y = height - 20
paddle_width = 60
paddle_height = 10

# Start the game loop
while True:
    # Handle events
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    # Move the ball
    ball_x += ball_speed_x
    ball_y += ball_speed_y

    # Check for ball-wall collisions
    if ball_x <= 0 or ball_x >= width - 10:
        ball_speed_x = -ball_speed_x
    if ball_y <= 0 or ball_y >= height - 10:
        ball_speed_y = -ball_speed_y

    # Check for ball-paddle collisions
    if ball_y >= paddle_y and ball_x >= paddle_x and ball_x <= paddle_x + paddle_width:
        ball_speed_y = -ball_speed_y

    # Clear the screen
    window.fill((0, 0, 0))

    # Draw the ball
    pygame.draw.circle(window, (255, 255, 255), (int(ball_x), int(ball_y)), 5)

    # Draw the paddle
    pygame.draw.rect(window, (255, 255, 255), (paddle_x, paddle_y, paddle_width, paddle_height))

    # Update the display
    pygame.display.update()

This code will create a simple game window and render a ball that moves and bounces off the walls, and a paddle that the player can control to bounce the ball back up.

You can expand upon this example by adding more features, such as scoring, game over conditions, and more.