PyGameのようなシンプルなパッケージがあれば、回転する正方形をレンダリングするのに十分でしょう。以下にPyGameを使ったサンプルコードを示します：

```
    import pygame as py
    
    # define constants  
    WIDTH = 500  
    HEIGHT = 500  
    FPS = 60  
    
    # define colors  
    BLACK = (0 , 0 , 0)  
    WHITE = (255 , 255 , 255)  
    
    # initialize pygame and create screen  
    py.init()  
    screen = py.display.set_mode((WIDTH , HEIGHT))  
    # for setting FPS  
    clock = py.time.Clock()  
    
    rot = 0  
    rot_speed = 2  
    
    # define a surface (RECTANGLE)  
    image_orig = py.Surface((100 , 100))  
    # for making transparent background while rotating an image  
    image_orig.set_colorkey(BLACK)  
    # fill the rectangle / surface with white color  
    image_orig.fill(WHITE)  
    # creating a copy of orignal image for smooth rotation  
    image = image_orig.copy()  
    image.set_colorkey(BLACK)  
    # define rect for placing the rectangle at the desired position  
    rect = image.get_rect()  
    rect.center = (WIDTH // 2 , HEIGHT // 2)  
    # keep rotating the rectangle until running is set to False  
    running = True  
    while running:  
        # set FPS  
        clock.tick(FPS)  
        # clear the screen every time before drawing new objects  
        screen.fill(BLACK)  
        # check for the exit  
        for event in py.event.get():  
            if event.type == py.QUIT:  
                running = False  
    
        # making a copy of the old center of the rectangle  
        old_center = rect.center  
        # defining angle of the rotation  
        rot = (rot + rot_speed) % 360  
        # rotating the orignal image  
        new_image = py.transform.rotate(image_orig , rot)  
        rect = new_image.get_rect()  
        # set the rotated rectangle to the old center  
        rect.center = old_center  
        # drawing the rotated rectangle to the screen  
        screen.blit(new_image , rect)  
        # flipping the display after drawing everything  
        py.display.update()  
    
    py.quit()
```

Note: `import` する前に PyGame をインストールする必要があります。
The instruction you've provided is not entirely clear, but a simple package like PyGame would suffice for rendering a rotating square. Here is some example code that uses PyGame:
    import pygame as py
    
    # define constants  
    WIDTH = 500  
    HEIGHT = 500  
    FPS = 60  
    
    # define colors  
    BLACK = (0 , 0 , 0)  
    WHITE = (255 , 255 , 255)  
    
    # initialize pygame and create screen  
    py.init()  
    screen = py.display.set_mode((WIDTH , HEIGHT))  
    # for setting FPS  
    clock = py.time.Clock()  
    
    rot = 0  
    rot_speed = 2  
    
    # define a surface (RECTANGLE)  
    image_orig = py.Surface((100 , 100))  
    # for making transparent background while rotating an image  
    image_orig.set_colorkey(BLACK)  
    # fill the rectangle / surface with white color  
    image_orig.fill(WHITE)  
    # creating a copy of orignal image for smooth rotation  
    image = image_orig.copy()  
    image.set_colorkey(BLACK)  
    # define rect for placing the rectangle at the desired position  
    rect = image.get_rect()  
    rect.center = (WIDTH // 2 , HEIGHT // 2)  
    # keep rotating the rectangle until running is set to False  
    running = True  
    while running:  
        # set FPS  
        clock.tick(FPS)  
        # clear the screen every time before drawing new objects  
        screen.fill(BLACK)  
        # check for the exit  
        for event in py.event.get():  
            if event.type == py.QUIT:  
                running = False  
    
        # making a copy of the old center of the rectangle  
        old_center = rect.center  
        # defining angle of the rotation  
        rot = (rot + rot_speed) % 360  
        # rotating the orignal image  
        new_image = py.transform.rotate(image_orig , rot)  
        rect = new_image.get_rect()  
        # set the rotated rectangle to the old center  
        rect.center = old_center  
        # drawing the rotated rectangle to the screen  
        screen.blit(new_image , rect)  
        # flipping the display after drawing everything  
        py.display.update()  
    
    py.quit()
Note: PyGame must be installed before it can be `import`ed.