TypeError: catching classes that do not inherit from BaseException is not allowed

[w5688414]

python 3.8 使用C++的方式部署，然后用httpclient报错：

time to cost :0.007140398025512695 seconds
Exception ignored in: <function HttpClient.__del__ at 0x7fb8fb38f0d0>
Traceback (most recent call last):
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/paddle_serving_client/httpclient.py", line 583, in __del__
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/requests/sessions.py", line 737, in close
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/requests/adapters.py", line 326, in close
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/urllib3/poolmanager.py", line 223, in clear
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/urllib3/_collections.py", line 100, in clear
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/urllib3/poolmanager.py", line 174, in <lambda>
  File "/root/anaconda3/envs/d2l/lib/python3.8/site-packages/urllib3/connectionpool.py", line 498, in close
TypeError: catching classes that do not inherit from BaseException is not allowed