最近刚好碰到这个情况，我是这么解决的，把要子线程和日志对象封装到一起，使用 logger.exception()来 traceback 错误


```
from concurrent.futures import ThreadPoolExecutor
import logging


class Main(object):
def __init__(self, logger=None):
self.pool = ThreadPoolExecutor
self.logger = logger or self._get_logger(__name__)

def _get_logger(self, name):
logger = logging.getLogger(name)
handler = logging.StreamHandler()
formatter = logging.Formatter(
"%(asctime)s - %(levelname)s - %(threadName)s - %(message)s")
handler.setFormatter(formatter)
logger.addHandler(handler)
logger.setLevel(logging.DEBUG)
return logger

def do_something(self):
try:
a = 1 / 0
except Exception as e:
self.logger.exception(e)

def async_task(self):
with self.pool() as p:
for i in range(3):
p.submit(self.do_something)


if __name__ == '__main__':
m = Main()
m.async_task()
```

日志：
```
2020-05-19 16:23:38,378 - ERROR - ThreadPoolExecutor-0_0 - division by zero
Traceback (most recent call last):
File "thread.py", line 22, in do_something
a = 1 / 0
ZeroDivisionError: division by zero
2020-05-19 16:23:38,378 - ERROR - ThreadPoolExecutor-0_0 - division by zero
Traceback (most recent call last):
File "thread.py", line 22, in do_something
a = 1 / 0
ZeroDivisionError: division by zero
2020-05-19 16:23:38,378 - ERROR - ThreadPoolExecutor-0_2 - division by zero
Traceback (most recent call last):
File "thread.py", line 22, in do_something
a = 1 / 0
ZeroDivisionError: division by zero
```

原来是这原因，debug 好几天都找不到问题再哪里。腾讯云这孙子也没发个通知公告一下。

@cairnechen 这个 uid 貌似是小贱贱图床的，不知道用什么什么手段隐藏了信息

😂之前为了自己看漫画方便，动手做了一个
https://www.kumaodm.com