在Python中捕獲“ socket.timeout讀取操作超時”

Question

我正在調用API，並收到以下超時錯誤：

socket.timeout The read operation timed out

追溯到

File "/Users/someuser/anaconda/envs/python3/lib/python3.5/http/client.py", line 1198, in getresponse
    response.begin()
  File "/Users/someuser/anaconda/envs/python3/lib/python3.5/http/client.py", line 297, in begin
    version, status, reason = self._read_status()
  File "/Users/someuser/anaconda/envs/python3/lib/python3.5/http/client.py", line 258, in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
  File "/Users/someuser/anaconda/envs/python3/lib/python3.5/socket.py", line 576, in readinto
    return self._sock.recv_into(b)
  File "/Users/someuser/anaconda/envs/python3/lib/python3.5/ssl.py", line 937, in recv_into
    return self.read(nbytes, buffer)
  File "/Users/someuser/anaconda/envs/python3/lib/python3.5/ssl.py", line 799, in read
    return self._sslobj.read(len, buffer)
  File "/Users/someuser/anaconda/envs/python3/lib/python3.5/ssl.py", line 583, in read
    v = self._sslobj.read(len, buffer)
socket.timeout The read operation timed out

如何從回溯的頂部捕獲此錯誤？

Answer 1

這是一個重復的問題，但是正確的方法是通過使用來捕獲socket.timeout

import socket
try:
    ...
except socket.timeout:
    ...

該錯誤指出顯式引發的異常，您可以依靠它。 即使調用方法是ssl lib，該錯誤似乎也與實際的套接字連接有關。

Answer 2

谷歌搜索導致我https://community.home-assistant.io/t/difficulty-catching-an-exception/12955/6

似乎SSL ssl.SSLError時會拋出ssl.SSLError 。 您可以嘗試類似：

import ssl

def getresponse():
     ...
     try:
          response.begin
     except ssl.SSLError as err:
          handle_error(err)