Error stack trace is pasted below:

collecting ... INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/_pytest/main.py", line 178, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/_pytest/main.py", line 214, in _main
INTERNALERROR>     config.hook.pytest_collection(session=session)
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/hooks.py", line 258, in __call__
INTERNALERROR>     return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/manager.py", line 67, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/manager.py", line 61, in <lambda>
INTERNALERROR>     firstresult=hook.spec_opts.get('firstresult'),
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/callers.py", line 201, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/callers.py", line 77, in get_result
INTERNALERROR>     _reraise(*ex)  # noqa
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/callers.py", line 180, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/_pytest/main.py", line 224, in pytest_collection
INTERNALERROR>     return session.perform_collect()
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/_pytest/main.py", line 431, in perform_collect
INTERNALERROR>     session=self, config=self.config, items=items
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/hooks.py", line 258, in __call__
INTERNALERROR>     return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/manager.py", line 67, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/manager.py", line 61, in <lambda>
INTERNALERROR>     firstresult=hook.spec_opts.get('firstresult'),
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/callers.py", line 201, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/callers.py", line 77, in get_result
INTERNALERROR>     _reraise(*ex)  # noqa
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/pluggy/callers.py", line 180, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/builds/bliss/bliss/tests/controllers_hw/conftest.py", line 16, in pytest_collection_modifyitems
INTERNALERROR>     if config.getoption('--pepu') is None:
INTERNALERROR>   File "/miniconda/envs/testenv/lib/python2.7/site-packages/_pytest/config/__init__.py", line 896, in getoption
INTERNALERROR>     raise ValueError("no option named %r" % (name,))
INTERNALERROR> ValueError: no option named 'pepu'