Test on Python 3.6

[tiran]

Signed-off-by: Christian Heimes [email protected]

[tiran]

pytest triggers a deprecation warning on Python 3.6, which causes the tests to fail:

________________ ERROR collecting tests/test_authenticators.py _________________
.tox/py36/lib/python3.6/site-packages/_pytest/runner.py:163: in __init__
    self.result = func()
.tox/py36/lib/python3.6/site-packages/_pytest/main.py:476: in _memocollect
    return self._memoizedcall('_collected', lambda: list(self.collect()))
.tox/py36/lib/python3.6/site-packages/_pytest/main.py:347: in _memoizedcall
    res = function()
.tox/py36/lib/python3.6/site-packages/_pytest/main.py:476: in <lambda>
    return self._memoizedcall('_collected', lambda: list(self.collect()))
.tox/py36/lib/python3.6/site-packages/_pytest/python.py:412: in collect
    return super(Module, self).collect()
.tox/py36/lib/python3.6/site-packages/_pytest/python.py:326: in collect
    res = self.makeitem(name, obj)
.tox/py36/lib/python3.6/site-packages/_pytest/python.py:338: in makeitem
    collector=self, name=name, obj=obj)
.tox/py36/lib/python3.6/site-packages/_pytest/vendored_packages/pluggy.py:745: in __call__
    return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
.tox/py36/lib/python3.6/site-packages/_pytest/vendored_packages/pluggy.py:339: in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
.tox/py36/lib/python3.6/site-packages/_pytest/vendored_packages/pluggy.py:334: in <lambda>
    _MultiCall(methods, kwargs, hook.spec_opts).execute()
.tox/py36/lib/python3.6/site-packages/_pytest/vendored_packages/pluggy.py:613: in execute
    return _wrapped_call(hook_impl.function(*args), self.execute)
.tox/py36/lib/python3.6/site-packages/_pytest/vendored_packages/pluggy.py:250: in _wrapped_call
    wrap_controller.send(call_outcome)
E   DeprecationWarning: generator 'pytest_pycollect_makeitem' raised StopIteration

[tiran]

I applied a band-aid. Tests are now ignoring deprecation warnings from pytest.

[simo5]

LGTM