Hello. I have a library which exposes the following function: namespace ftr { Player & getPlayer(int num); } and it's exposed to python by: def("getPlayer", &ftr::getPlayer, return_value_policy<reference_existing_object>()); This code used to work, but now I compile it and get this error when using it from the python module, under ubuntu 9.04: Traceback (most recent call last): File "/usr/lib/python2.5/site-packages/apport_python_hook.py", line 77, in apport_excepthook pr['PythonArgs'] = '%r' % sys.argv AttributeError: 'module' object has no attribute 'argv' Original exception was: Traceback (most recent call last): File "<string>", line 1, in <module> Boost.Python.ArgumentError: Python argument types in ftr.getPlayer(int) did not match C++ signature: getPlayer(int) Any help here, please? I don't know why this should happen.