Boost C++ Libraries

All C++ exceptions must be caught at the boundary with Python code. This boundary is the point where C++ meets Python. Boost.Python provides a default exception handler that translates selected standard exceptions, then gives up:

raise RuntimeError, 'unidentifiable C++ Exception'

Users may provide custom translation. Here's an example:

struct PodBayDoorException;
void translator(PodBayDoorException const& x) {
    PyErr_SetString(PyExc_UserWarning, "I'm sorry Dave...");
}
BOOST_PYTHON_MODULE(kubrick) {
     register_exception_translator<
          PodBayDoorException>(translator);
     ...