工作中遇到的问题Python子线程退出

如下代码：当线程ReqSender抛异常退出时，主线程一并退出。Timer里的get_t方法也退出

注意：ReqSender和Timer是两个线程类。

class MyError(Exception):
      print "a error"

class ReqSender():
    def __init__(self,ids,idb):
        self.ids=ids
        self.idb=idb

    def assert_case(self):
        if self.ids <> self.idb :
            try:
                raise MyError
            finally:
                exit(1)

class Timer():
    def get_t(self):
        for i in range(10):
            time.sleep(3)
            print i


if __name__ == '__main__':
    rs = ReqSender(2,3)
    tm = Timer()
    thread.start_new_thread(tm.get_t,())
    time.sleep(10)
    try:
        thread.start_new_thread(rs.assert_case,())
    except MyError:
        print "exist"
        sys.exit(1)

但当代码编程assert 和get_t同属于一个线程类。当assert方法异常退出。get_t并不会退出，而是等get_t跑完，主线程才退出。。

class MyError(Exception):
      print "a error"

class ReqSender():
    def __init__(self,ids,idb):
        self.ids=ids
        self.idb=idb

    def assert_case(self):
        if self.ids <> self.idb :
            try:
                raise MyError
            finally:
                exit(1)

    def get_t(self):
        for i in range(10):
            time.sleep(3)
            print i


if __name__ == '__main__':
    rs = ReqSender(2,3)
    thread.start_new_thread(rm.get_t,())
    time.sleep(10)
    try:
        thread.start_new_thread(rs.assert_case,())
    except MyError:
        print "exist"
        sys.exit(1)

这可能是一个线程，进程退出的问题。因为我对这块不太熟悉，所以mark以下，以后回来再思考深层原因。