How to get StatusCode from ErrorMessage when calling connect()

[km-manzm]

Hello,

I am trying to handle some errors when calling the connect methode with the asyncua.sync.Client.
I want to inform the user why a connection was not successfull. (In my case the server would need a certificate for Basic256Sha256_SignAndEncrypt )

so my code looks like this:

opcua_client = asyncua.sync.Client("127.0.0.1")
try:
    opcua_client.connect()
except Exception as ex:
    print(f"oopsie: {ex}")

However i only get a ConnectionError Exception with almost no usefull information.

full stacktrace:

Traceback (most recent call last):
  File "/workspaces/machine-imm-keba-opcua/machine_imm_keba_opcua/kebaopcuamachine.py", line 384, in _connect
    self._opcua_client.connect()
  File "/home/vscode/.local/lib/python3.8/site-packages/asyncua/sync.py", line 94, in wrapper
    result = self.tloop.post(aio_func(*args, **kwargs))
  File "/home/vscode/.local/lib/python3.8/site-packages/asyncua/sync.py", line 52, in post
    return futur.result()
  File "/usr/local/lib/python3.8/concurrent/futures/_base.py", line 444, in result
    return self.__get_result()
  File "/usr/local/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
    raise self._exception
  File "/home/vscode/.local/lib/python3.8/site-packages/asyncua/client/client.py", line 280, in connect
    await self.create_session()
  File "/home/vscode/.local/lib/python3.8/site-packages/asyncua/client/client.py", line 412, in create_session
    response = await self.uaclient.create_session(params)
  File "/home/vscode/.local/lib/python3.8/site-packages/asyncua/client/ua_client.py", line 404, in create_session
    data = await self.protocol.send_request(request)
  File "/home/vscode/.local/lib/python3.8/site-packages/asyncua/client/ua_client.py", line 212, in send_request
    raise ConnectionError("Connection is closed") from None
ConnectionError: Connection is closed

On the console i can see that the asyncua logger has risen an error:
(asyncua.uaprotocol): Received an error: ErrorMessage(Error=StatusCode(value=2153054208), Reason=None)

Is there any way to get the Error=StatusCode value in my exception handling? The message 'Connection is closed' is not very useful.

Thanks for any support.