I need help with beginner level of python
import pygame import sys import math # Initialize pygame pygame.init() # Set up the screen WIDTH, HEIGHT = 800, 600 screen = pygame.display.set_mode((WIDTH, HEIGHT)) pygame.display.set_caption("Bubbles Simulation") # Colors BLACK = (0, 0, 0) WHITE = (255, 255, 255) RED = (255, 0, 0) BLUE = (0, 0, 255) # Parameters circle_radius = 200 bubble_radius = 10 bubble_gap = 10 bubble_speed = 2 num_bubbles = 1000 # Function to draw the circle def draw_circle(): pygame.draw.circle(screen, BLACK, (WIDTH // 2, HEIGHT // 2), circle_radius, 2) # Function to draw bubbles def draw_bubbles(bubbles): for bubble in bubbles: pygame.draw.circle(screen, WHITE, (bubble[0], bubble[1]), bubble_radius) # Main function def main(): # Initial positions of bubbles bubbles = [(WIDTH // 2, HEIGHT // 2 + circle_radius - bubble_radius - bubble_gap * i) for i in range(num_bubbles)] # Main loop while True: screen.fill(WHITE) draw_circle() draw_bubbles(bubbles) # Pop-in blac