Python How do I remove the background of an image (Pygame)

[User8574]

I tried using Gimp to make an alpha channel, I tried using convert_alpha(); how do I remove the background of an image on pygame?

 

[menator01]

Can we see the code?
Post the mario image as well please.

 

[User8574]

import random
import pygame, sys

def ball_restart():
    global ball_speed_x, ball_speed_y

    ball.center = (screen_width/2, screen_height/2)
    ball_speed_y *= random.choice((1,-1))
    ball_speed_x *= random.choice((1,-1))

def ball_animation():
    global ball_speed_x, ball_speed_y

    ball.x += ball_speed_x
    ball.y += ball_speed_y

    if ball.top <= 0 or ball.bottom >= screen_height:
        ball_speed_y *= -1
    if ball.left <= 0:
        ball_restart()
    if ball.right >= screen_width:
        ball_restart()

    if ball.colliderect(player) or ball.colliderect(opponent):
        ball_speed_x *= -1

pygame.init()
clock = pygame.time.Clock()

screen_width = 1280
screen_height = 960
screen = pygame.display.set_mode((screen_width,screen_height))
pygame.display.set_caption("Pong")

ball = pygame.Rect(screen_width/2 - 15, screen_height/2 - 15, 30,30)
player = pygame.Rect(screen_width - 20, screen_height/2 - 70, 10,140)
opponent = pygame.Rect(10, screen_height/2 - 70, 10,140)

bg_color = pygame.Color("white")
black = pygame.Color("black")

ball_speed_x = 7
ball_speed_y = 7
player_speed = 0
opponent_speed = 7

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                player_speed -=7

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_DOWN:
                player_speed +=7

        if event.type == pygame.KEYUP:
            if event.key == pygame.K_UP:
                player_speed +=7

        if event.type == pygame.KEYUP:
            if event.key == pygame.K_DOWN:
                player_speed -=7

    ball_animation()

    # Player

    player.y += player_speed

    if player.top <= 0:
        player.top = 0
    if player.bottom >= screen_height:
        player.bottom = screen_height

    # Opponent

    if opponent.top < ball.y:
        opponent.top += opponent_speed
    if opponent.bottom > ball.y:
        opponent.bottom -= opponent_speed

    if opponent.top <= 0:
        opponent.top = 0
    if opponent.bottom >= screen_height:
        opponent.bottom = screen_height

    screen.fill(bg_color)
    pygame.draw.rect(screen, black, player)
    pygame.draw.rect(screen, black, opponent)
    pygame.draw.ellipse(screen, black, ball)
    pygame.draw.aaline(screen, black, (screen_width/2,0), (screen_width/2, screen_height))

    pygame.display.flip()
    clock.tick(60)

 

[User8574]

 

[menator01]

I found a link on how to remove background from image 6 ways with gimp.
Gimp is a free image editing tool that in my opinion is very good.
Maybe this will help.