symbol_list = [KOSPI, KOSDAQ 전 종목]
t_now = datetime.now()
t_9 = t_now.replace(hour=9, minute=0, second=0, microsecond=0)
t_start = t_now.replace(hour=9, minute=0, second=0, microsecond=0)
t_sell = t_now.replace(hour=15, minute=18, second=0, microsecond=0)
t_exit = t_now.replace(hour=15, minute=20, second=0,microsecond=0)
if t_start < t_now < t_sell:
for buy_sym in symbol_list:
buy_stock(buy_sym)
time.sleep(0.01)