Traceback (most recent call last):


 "/home/travis/virtualenv/python3.4.6/bin/py.test", line 11, in <module>

sys.exit(main())


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 47, in main

config = _prepareconfig(args, plugins)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 156, in _prepareconfig

pluginmanager=pluginmanager, args=args)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 745, in __call__

return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 339, in _hookexec

return self._inner_hookexec(hook, methods, kwargs)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 334, in <lambda>

_MultiCall(methods, kwargs, hook.spec_opts).execute()


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 613, in execute

return _wrapped_call(hook_impl.function(*args), self.execute)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 250, in _wrapped_call

wrap_controller.send(call_outcome)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/helpconfig.py", line 32, in pytest_cmdline_parse

config = outcome.get_result()


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 279, in get_result

raise ex[1].with_traceback(ex[2])


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 265, in __init__

self.result = func()


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 614, in execute

res = hook_impl.function(*args)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 924, in pytest_cmdline_parse

self.parse(args)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 1082, in parse

self._preparse(args, addopts=addopts)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/config.py", line 1044, in _preparse

self.pluginmanager.load_setuptools_entrypoints(entrypoint_name)


 "/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages/_pytest/vendored_packages/pluggy.py", line 515, in load_setuptools_entrypoints

"Plugin %r could not be loaded: %s!" % (ep.name, e))
_pytest.vendored_packages.pluggy.PluginValidationError: Plugin 'xdist' could not be loaded: (pytest 3.0.7 (/home/travis/virtualenv/python3.4.6/lib/python3.4/site-packages), Requirement.parse('pytest>=3.6.0'))!

Traceback (most recent call last):


 "/lingtian/software/anaconda3/envs/tf_1.12.0/lib/python3.6/site-packages/joblib/externals/loky/process_executor.py", line 624, in _queue_management_worker

result_item = result_reader.recv()


 "/lingtian/software/anaconda3/envs/tf_1.12.0/lib/python3.6/multiprocessing/connection.py", line 251, in recv

return _ForkingPickler.loads(buf.getbuffer())
TypeError: __init__() takes 1 positional argument but 2 were given
