id summary reporter owner description type status milestone component version severity resolution keywords cc 4701 get_override() exception set trigves@… Dave Abrahams In base::get_override() PyObject_GetAttrString() is used to retrieve the attribute. But this function set exception in python if attribute is not found. Given patch solves it by using PyObject_HasAttrString() first and only if attribute exist, use PyObject_GetAttrString() Bugs closed To Be Determined python USE GITHUB Boost 1.44.0 Showstopper invalid get_override exception