I expose the return type of a C++ function that is a pair of strings with the following snippet:
to_python_converter< std::pair<std::string, std::string>, Converter>(); Later, I have a unrelated C++ range type: typedef std::pair<const std::string*,const std::string*> range_t; which I export as: class_<range_t>("range") .def("__iter__" , range(..., ...)); scope().attr("allitems") = object(ptr(&R)); where R is of type range_t in python, allitems can be iterated over. The only issue is I get the following warning: /usr/lib64/python3.4/importlib/_bootstrap.py:321: RuntimeWarning: to-Python converter for std::pair<std::string const*, std::string const*> already registered; second conversion method ignored. Is there a way to avoid this warning? MM
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