how to make pygame use float number code example

Example: how to make pygame use float number

'''Pygame cannot adjust the image/rectangle position with floats,
because it rounds the float to an integer. But with this method it works'''

import pygame
pygame.__init__()

WIDTH = 300
HEIGHT = 300
screen = pygame.display.set_mode((WIDTH, HEIGHT))

#Create Sprite Class
class Sprite(pg.sprite.Sprite):
    def __init__(self , pos_x , pos_y, img_name, size):
        pg.sprite.Sprite.__init__(self)
        self.pos_x = pos_x
        self.pos_y = pos_y
        self.image = pg.transform.scale(pg.image.load(img_name), size).convert()
        self.rect = self.image.get_rect(center=(self.pos_x, self.pos_y))


    def update(self):
        pass

      
#Create Object
sprite_obj = Sprite(x, y,"IMAGE.png",(10,10))

#Create Sprite Group
all_sprites = pg.sprite.Group()

#Add Object To The Group
all_sprites.add(sprite_obj)


#Now Create A Function That Redraws the "sprite_obj" in the new location
z = 0
def update_sprite():
  #First remove the old one
  all_sprites.remove(sprite_obj)
  #Make new one with other/updating coordinates
  z += 1
  sprite_obj = Sprite(z, y,"IMAGE.png",(10,10))
  #Add the new one to the group
  all_sprites.add(sprite_obj)
  

  
#Game Loop
while True:
    clock.tick(120)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    #Update
    all_sprites.draw(screen)
    all_sprites.update()
    
    update_sprite()
    
    pygame.display.flip()

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