PyGame / Twisted integration with fixed fps screen updating and fast as possible event processing.

pygame_twisted.py

#!/usr/bin/env python

from twisted.internet import reactor
from twisted.internet.task import LoopingCall, Cooperator

import pygame
import pygame.font

pygame.display.init()
pygame.font.init()

count = 0

screen = pygame.display.set_mode((300, 300), 0)
font = pygame.font.Font(pygame.font.match_font("", True), 72)

def update_screen():
    global count, screen, font
    screen.fill((0, 0, 0))
    fs = font.render(str(count), True, (255, 255, 255))
    fss = fs.get_rect()
    fss.center = (150, 150)
    screen.blit(fs, fss)
    pygame.display.flip()
    count += 1
    if count == 1000:
        count = 0

def process_event():
    while True:
        for e in pygame.event.get():
            if e.type != pygame.NOEVENT:
                print e
        yield

# Locked to fixed FPS
lc = LoopingCall(update_screen)
lc.start(1.0 / 30)

coop = Cooperator()
coop.coiterate(process_event())

reactor.run()