wilfred:tmp> /opt/jython-ssl/dist/bin/py.test-jython                                                                                                
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/main.py", line 77, in wrap_session
INTERNALERROR>     config.pluginmanager.do_configure(config)
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/core.py", line 284, in do_configure
INTERNALERROR>     config.hook.pytest_configure(config=self._config)
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/core.py", line 441, in __call__
INTERNALERROR>     return self._docall(methods, kwargs)
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/core.py", line 452, in _docall
INTERNALERROR>     res = mc.execute()
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/core.py", line 370, in execute
INTERNALERROR>     res = method(**kwargs)
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/__init__.py", line 48, in pytest_configure
INTERNALERROR>     _load_modules(mode)
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/__init__.py", line 105, in _load_modules
INTERNALERROR>     from _pytest.assertion import reinterpret
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/reinterpret.py", line 42, in <module>
INTERNALERROR>     from _pytest.assertion.oldinterpret import interpret as reinterpret_old
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/site-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/oldinterpret.py", line 3, in <module>
INTERNALERROR>     from compiler import parse, ast, pycodegen
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/compiler/__init__.py", line 31, in <module>
INTERNALERROR>     from compiler.pycodegen import compile, compileFile
INTERNALERROR>   File "/opt/jython-ssl/dist/Lib/compiler/pycodegen.py", line 11, in <module>
INTERNALERROR>     from compiler.consts import SC_LOCAL, SC_GLOBAL_IMPLICIT, SC_GLOBAL_EXPLICT, \
INTERNALERROR> ImportError: cannot import name SC_GLOBAL_EXPLICT