Hi, In our distributed tests we have been having intermittent failures on one particular parametrized test, with the failure always being on the same test case - failing in pytest_pyfunc_call in the look-up of a funcarg. This funcarg is used in a very large number of our tests (ie otherwise seems reliable) and has function scope. I was just looking into it (traceback below) and I suddenly realised that the case was duplicated. Our test has 135 entries in parametrize so obviously someone (probably me!) just copy-pasted and accidentally left one line the same. It seems to me it might be appropriate for py.test to warn about this, or even give a collection error? What do people think? Secondly does it seem like this might somehow be related to the intermittent test failure? It is baffling me. thanks, Brianna ../pytest-2.3.5-py2.7.egg/_pytest/runner.py:129: in __init__

self.result = func()

../pytest-2.3.5-py2.7.egg/_pytest/runner.py:116: in <lambda>

return CallInfo(lambda: ihook(item=item, **kwds), when=when) ../pytest-2.3.5-py2.7.egg/_pytest/main.py:159: in call_matching_hooks return hookmethod.pcall(plugins, **kwargs) ../pytest-2.3.5-py2.7.egg/_pytest/core.py:445: in pcall return self._docall(methods, kwargs) ../pytest-2.3.5-py2.7.egg/_pytest/core.py:452: in _docall res = mc.execute() ../pytest-2.3.5-py2.7.egg/_pytest/core.py:370: in execute res = method(**kwargs) ../pytest-2.3.5-py2.7.egg/_pytest/runner.py:86: in pytest_runtest_call item.runtest() ../pytest-2.3.5-py2.7.egg/_pytest/python.py:982: in runtest self.ihook.pytest_pyfunc_call(pyfuncitem=self) ../pytest-2.3.5-py2.7.egg/_pytest/main.py:159: in call_matching_hooks return hookmethod.pcall(plugins, **kwargs) ../pytest-2.3.5-py2.7.egg/_pytest/core.py:445: in pcall return self._docall(methods, kwargs) ../pytest-2.3.5-py2.7.egg/_pytest/core.py:452: in _docall res = mc.execute() ../pytest-2.3.5-py2.7.egg/_pytest/core.py:370: in execute res = method(**kwargs) ../pytest-2.3.5-py2.7.egg/_pytest/python.py:152: in pytest_pyfunc_call testargs[arg] = funcargs[arg] E KeyError: 'dbs'

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