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include using namespace boost::python; struct World{ void set(std::string msg) { this->msg = msg; } std::string greet() { return msg; } std::string msg; }; BOOST_PYTHON_MODULE(hello) { class_<World>("World") .def("greet", &World::greet) .def("set", &World::set) ; } Compile and build ok ~/boost$ g++ -fPIC -I/usr/include/python2.6 -c hello.cpp ~/boost$ g++ -shared hello.o -o hello.so But when import from python side, got error. >>> import hello.so Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: ./hello.so: undefined symbol: _ZNK5boost6python7objects21py_function_impl_base9max_arityEv >>>
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