Error loading plugin paho-mqtt

I’m using Tavern tests to test my REST API here.

On my Windows machine, I can run all tests without problem.

When running my tests on a Ubuntu host or inside an Ubuntu container, I get the following error:

Errors:
E   tavern.util.exceptions.PluginLoadError: Error loading plugin paho-mqtt = tavern._plugins.mqtt.tavernhook - [Errno 20] Not a directory: '/home/stefan/venv-tng/lib/python3.6/site-packages/tavern-0.26.1-py3.6.egg/tavern/_plugins/mqtt/schema.yaml'

In don’t get this. I have installed tavern along with all other dependencies in a virtualenv. The error happens both when using python setup.py install and python setup.py develop.

[stefanbschneider]

Unfortunately, the error just came back:

exc = PluginLoadError("Error loading plugin paho-mqtt = tavern._plugins.mqtt.tavernhook - [Errno 20] Not a directory: '/usr/local/lib/python3.6/site-packages/tavern-0.26.1-py3.6.egg/tavern/_plugins/mqtt/schema.yaml'",)

cause = NotADirectoryError(20, 'Not a directory')


    def raise_from(exc, cause):

        """

        Equivalent to:

    

            raise EXCEPTION from CAUSE

    

        on Python 3. (See PEP 3134).

        """

        myglobals, mylocals = _get_caller_globals_and_locals()

    

        # We pass the exception and cause along with other globals

        # when we exec():

        myglobals = myglobals.copy()

        myglobals['__python_future_raise_from_exc'] = exc

        myglobals['__python_future_raise_from_cause'] = cause

        execstr = "raise __python_future_raise_from_exc from __python_future_raise_from_cause"

>       exec(execstr, myglobals, mylocals)


/usr/local/lib/python3.6/site-packages/future-0.18.2-py3.6.egg/future/utils/__init__.py:403: 

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 


>   ???

E   tavern.util.exceptions.PluginLoadError: Error loading plugin paho-mqtt = tavern._plugins.mqtt.tavernhook - [Errno 20] Not a directory: '/usr/local/lib/python3.6/site-packages/tavern-0.26.1-py3.6.egg/tavern/_plugins/mqtt/schema.yaml'

I’m still using the same versions.

Strangely, the tests pass fine when executing them locally and the error only occurs when building and running them in Docker containers, eg, in Jenkins.

• Container build: https://github.com/sonata-nfv/tng-sdk-project/blob/master/pipeline/build/build.sh
• Unit tests: https://github.com/sonata-nfv/tng-sdk-project/blob/master/pipeline/unittest/test.sh

[michaelboulton]

I can’t really tell what would be causing that error, this line in particular seems completely wrong:

E   NotADirectoryError: [Errno 20] Not a directory: '/home/stefan/venv-tng/lib/python3.6/site-packages/tavern-0.26.1-py3.6.egg/tavern/_plugins/mqtt/schema.yaml'

Glad it’s fixed itself though!