Method what

src/Exceptions.h:73–76

                 ? " for file " + file_path
                 : "")) { }
        virtual const char* what() const noexcept override {
            // Include file path in native C++ exception output (stderr / terminate).
            return full_message.c_str();
        }
        virtual std::string py_message() const override {
            // Keep Python exception output consistent with what().
            return full_message;