死循环内10秒内不执行某段程序（python）

    from time import time
    time_bz = 0
    def function():
        global time_bz   
        while True:
            if time_bz == 0:
                time_begin = int(time())
                time_bz = 1
                # 需要执行的代码

            # 10秒之内不执行上面程序
            if int(time()) - time_begin > 10:
                time_bz = 0