--- openvdb/python/pyOpenVDBModule.cc.orig

+++ openvdb/python/pyOpenVDBModule.cc

@@ -320,7 +320,11 @@

     /// @return nullptr if the given Python object is not convertible to the PointIndex.

     static void* convertible(PyObject* obj)

     {

+#if PY_MAJOR_VERSION >= 3

+	if (!PyLong_Check(obj)) return nullptr; // not a Python integer

+#else

         if (!PyInt_Check(obj)) return nullptr; // not a Python integer

+#endif

         return obj;

     }

@@ -337,7 +341,11 @@

         // Extract the PointIndex from the python integer

         PointIndexT* index = static_cast<PointIndexT*>(storage);

+#if PY_MAJOR_VERSION >= 3

+	*index = static_cast<IntType>(PyLong_AsLong(obj));

+#else

         *index = static_cast<IntType>(PyInt_AsLong(obj));

+#endif

     }

     /// Register both the PointIndex-to-integer and the integer-to-PointIndex converters.