我认为您可以使用e.args[0].reason.errno
.
这可能记录在某处,但通常当我必须追踪这样的事情时,我只是在控制台上尝试它并稍微挖掘一下。(我使用 IPython,所以很容易进行制表符检查,但让我们试试吧)。
首先,让我们使用
import requests
try:
requests.get("http://not.a.real.url/really_not")
except requests.exceptions.ConnectionError as e:
pass
这应该给我们以下错误e
:
>>> e
ConnectionError(MaxRetryError("HTTPConnectionPool(host='not.a.real.url', port=80): Max retries exceeded with url: /really_not (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)",),)
信息通常在args
:
>>> e.args
(MaxRetryError("HTTPConnectionPool(host='not.a.real.url', port=80): Max retries exceeded with url: /really_not (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)",),)
>>> e.args[0]
MaxRetryError("HTTPConnectionPool(host='not.a.real.url', port=80): Max retries exceeded with url: /really_not (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)",)
往里看,我们看到:
>>> dir(e.args[0])
['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__',
'__getitem__', '__getslice__', '__hash__', '__init__', '__module__', '__new__',
'__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setstate__', '__sizeof__',
'__str__', '__subclasshook__', '__unicode__', '__weakref__', 'args', 'message', 'pool',
'reason', 'url']
reason
看起来令人鼓舞:
>>> e.args[0].reason
gaierror(-2, 'Name or service not known')
>>> dir(e.args[0].reason)
['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__',
'__getitem__', '__getslice__', '__hash__', '__init__', '__module__', '__new__',
'__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setstate__', '__sizeof__',
'__str__', '__subclasshook__', '__unicode__', '__weakref__', 'args', 'errno', 'filename',
'message', 'strerror']
>>> e.args[0].reason.errno
-2