https://sourceforge.net/tracker/?func=detail&aid=3464317&group_id=3180&atid=303180
--- Src/Python3/cxx_extensions.cxx
+++ Src/Python3/cxx_extensions.cxx
@@ -225,7 +225,11 @@
     static PyObject *rich_compare_handler( PyObject *, PyObject *, int );
     static PyObject *repr_handler( PyObject * );
     static PyObject *str_handler( PyObject * );
+#if PY_VERSION_HEX >= 0x03020000
+    static Py_hash_t hash_handler( PyObject * );
+#else
     static long hash_handler( PyObject * );
+#endif
     static PyObject *call_handler( PyObject *, PyObject *, PyObject * );
     static PyObject *iter_handler( PyObject * );
     static PyObject *iternext_handler( PyObject * );
@@ -714,7 +718,11 @@
     }
 }
 
+#if PY_VERSION_HEX >= 0x03020000
+extern "C" Py_hash_t hash_handler( PyObject *self )
+#else
 extern "C" long hash_handler( PyObject *self )
+#endif
 {
     try
     {