drawing circles on a circle (which is moving)

circles2.py

import pygame
import numpy as np

# change these values
points_temp = 1000
radius1 = 100
radius2 = 100
angular_speed_1 = 0.01
angular_speed_2 = 0.0002

points = int (2.0/angular_speed_1 + 2.0/angular_speed_2)

offset = [500,250]
resolution = np.array([1000, 500])

pygame.init()
window = pygame.display.set_mode(resolution)

def get_offset_from_num(num):
    return np.array([np.cos(num * angular_speed_2 * np.pi),np.sin(num * angular_speed_2 * np.pi)])*radius2 + offset

def get_coord_from_num(num,_offset):
    return np.array([np.cos(num * angular_speed_1 * np.pi),np.sin(num * angular_speed_1 * np.pi)])*radius1 + _offset

offset_coords = np.array([get_offset_from_num(a) for a in range(points)])
point_coords = np.array([get_coord_from_num(a,offset_coords[a]) for a in range(points)])
last_point = point_coords[0]

for point in point_coords:
    pygame.draw.line(window, (255, 255, 255), last_point, point)
    last_point = point
    pygame.display.update()

while 1:
    pass