requests call failures in pytest fixtures displays class content in errors

[phtrivier]

I'm using pytest to run "black-box" testing against a running web application, using requests for http.

When the http call fails (for any reason), this causes the pytest test to fail, with a very verbose output that actually contains the code from some requests class:

stack = <utils.local_stack.LocalStack object at 0x7f6a17694518>

    @pytest.fixture(scope="function")
    def prepare(stack):
>       response = api.do_some_http_call()

tests/conftest.py:54: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
apis/redacted.py:36: in do_some_http_call
    return requests.get(.... some url ... )
../../../../.local/lib/python3.6/site-packages/requests/api.py:72: in get
    return request('get', url, params=params, **kwargs)
../../../../.local/lib/python3.6/site-packages/requests/api.py:58: in request
    return session.request(method=method, url=url, **kwargs)
../../../../.local/lib/python3.6/site-packages/requests/sessions.py:508: in request
    resp = self.send(prep, **send_kwargs)
../../../../.local/lib/python3.6/site-packages/requests/sessions.py:618: in send
    r = adapter.send(request, **kwargs)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <requests.adapters.HTTPAdapter object at 0x7f6a1740ae80>, request = <PreparedRequest [GET]>, stream = False, timeout = <urllib3.util.timeout.Timeout object at 0x7f6a1740ac50>, verify = True, cert = None, proxies = OrderedDict()

    def send(self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None):
        """Sends PreparedRequest object. Returns Response object.
    
            :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
            :param stream: (optional) Whether to stream the request content.
            :param timeout: (optional) How long to wait for the server to send
                data before giving up, as a float, or a :ref:`(connect timeout,
                read timeout) <timeouts>` tuple.
            :type timeout: float or tuple or urllib3 Timeout object
            :param verify: (optional) Either a boolean, in which case it controls whether
                we verify the server's TLS certificate, or a string, in which case it
                must be a path to a CA bundle to use
            :param cert: (optional) Any user-provided SSL certificate to be trusted.
            :param proxies: (optional) The proxies dictionary to apply to the request.
            :rtype: requests.Response
            """

   ... etc ... 

Is it the expected behavior of pytest ? Could it be because the Exception is raised in a fixture from conftest.py ? How can I make the output more readable (I really only want the stacktrace, not the full code...)

[nicoddemus]

This is the intended behavior, pytest doesn't know or does any special treatment regarding requests. But you can control the traceback output, checkout the --tb option:

  --tb=style            traceback print mode (auto/long/short/line/native/no).

You probably want native or short.

[nicoddemus]

Closing as this has not seen activity in awhile.