id summary reporter owner description type status milestone component version severity resolution keywords cc 4497 division operator problem trigves@… Dave Abrahams When trying to implement division operator for custom class python doesn't recognize it. It is because boost::python use __div__ which was removed (or deprecated?) in python 3. The fix is to use __truediv__. I'm attaching the patch Bugs closed Boost 1.44.0 python USE GITHUB Boost 1.42.0 Problem fixed __div__ __truediv__ division nb_divide