search for: libboost_python

...where #0 0xfffffffffd4c3720 in ?? () #1 0x00000033fc810c66 in _Unwind_RaiseException () from /lib64/libgcc_s.so.1 #2 0x00000033fd4c3dbd in __cxa_throw () from /usr/lib64/libstdc++.so.6 #3 0x0000000000636df3 in boost::python::throw_error_already_set () from /usr/local/src/boost-llvm.hg/stage/lib/libboost_python.so #4 0x000000000063a82f in boost::python::objects::stop_iteration_error () from /usr/local/src/boost-llvm.hg/stage/lib/libboost_python.so This tells me exception handling isn't working right. boost::python should have caught this exception and returned it to python.