import pygame
from pygame.locals import *
import sys 

#FUNCTIONS
#pygame.draw.polygon(surface, color, pointlist, width)
#pygame.draw.line(surface, color, start_point, end_point, width)
#pygame.draw.lines(surface, color, closed, pointlist, width)
#pygame.draw.circle(surface, color, center_point, radius, width)
#pygame.draw.ellipse(surface, color, bounding_rectangle, width)
#pygame.draw.rect(surface, color, rectangle_tuple, width)


BLACK = (0,0,0)
RED = (255,0,0)
GREEN = (0,255,0)
BLUE = (0,0,255)
WHITE = (255,255,255)

screen = pygame.display.set_mode((600, 600))
screen.fill(WHITE)
clock = pygame.time.Clock()

pygame.draw.line(screen, BLACK, (100,100),(400,300), width=5)

while True :
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
    pygame.display.update()
    clock.tick(60)