python threading获取返回值

需要参照极简多线程
极简多线程

            threads = []
            info_list = []
            for index, value in enumerate(l):
                start = value
                end = value + step
                sql_conn = Oracle(JndiNames.EPO_DS)
                t = MyThread(DalMaterialInfo(sql_conn).download_material_info_start_end, param, start, end, sql_conn)
                t.start()
                threads.append(t)

            for index, t in enumerate(threads):
                info_dict = {}
                t.join()
                info_dict[f'{index}'] = t.get_result()
                # print('info dict', info_dict)
                info_list.append(info_dict)
            # print('info_list',info_list)
            print('len info list', len(info_list))

"""
用类包装线程；调用时可以获取线程的return返回值
"""
 
# 定义一个MyThread.py线程类
class MyThread(threading.Thread):
    def __init__(self, func, args=()):
        super(MyThread, self).__init__()
        self.func = func
        self.args = args
    def run(self):
        time.sleep(2)
        self.result = self.func(*self.args)
    def get_result(self):
        threading.Thread.join(self)  # 等待线程执行完毕
        try:
            return self.result
        except Exception:

参考
https://blog.csdn.net/xpt211314/article/details/109543014