多線程獲取返回值的類

class MyThread(object):
    '''
    多線程，獲取返回值
    '''
    def __init__(self, func_list=None):
        self.ret_flag = 0
        self.func_list = func_list
        self.threads = []
    def set_thread_func_list(self, func_list):
        self.func_list = func_list
    def ret_value(self):
        return self.ret_flag
    def trace_func(self, func, *args, **kwargs):
        ret = func(*args, **kwargs)
        self.ret_flag += ret
    def start(self):
        self.threads = []
        self.ret_flag = 0
        for func_dict in self.func_list:
            if func_dict["args"]:
                new_arg_list = []
                new_arg_list.append(func_dict["func"])
                for arg in func_dict["args"]:
                    new_arg_list.append(arg)
                new_arg_tuple = tuple(new_arg_list)
                print new_arg_tuple
                t = threading.Thread(target=self.trace_func, args=new_arg_tuple)
            else:
                t = threading.Thread(target=self.trace_func, args=(func_dict["func"],))
            self.threads.append(t)
        map(lambda x:x.start(),self.threads)
        map(lambda x:x.join(),self.threads)