fix error message

geoopt · Feb 10, 2019 · 8c36dcb · 8c36dcb
1 parent acf600d
commit 8c36dcb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/geoopt/manifolds/base.py b/geoopt/manifolds/base.py
@@ -215,7 +215,7 @@ def set_default_order(self, order):
                 set(self._retr_transport_funcs)
                 & set(self._retr_funcs)
                 & set(self._transport_follow_funcs)
-            ) - {None}
+            )
             raise ValueError(
                 "new default order should be one of {}".format(possible_orders)
             )