def checkproxypool(wait_time=VALID_CHECK_TIME):
#检查原有的代理池
print('Checking pool')
tester = ValidityTester()
redis=RedisClient()
while True:
halfcount = int(redis.len() / 2)
if halfcount==0:
time.sleep(wait_time)
continue
halfproxies = redis.cget(halfcount)
tester.set_raw_proxies(halfproxies)
tester.check_some_proxies()
time.sleep(wait_time)
