[mypy] type RegistrableObject.__regid__/__registry__

1 files changed, 3 insertions, 4 deletions

diff --git a/logilab/common/registry.py b/logilab/common/registry.py
index dc61883..6f60ef9 100644
--- a/logilab/common/registry.py
+++ b/logilab/common/registry.py
@@ -87,10 +87,9 @@ import weakref
 import traceback as tb
 from os import listdir, stat
 from os.path import join, isdir, exists
-from typing import Dict, Type
+from typing import Dict, Type, Optional, Union
 from logging import getLogger
 from warnings import warn
-from typing import Union
 
 from logilab.common.modutils import modpath_from_file
 from logilab.common.logging_ext import set_log_methods
@@ -399,8 +398,8 @@ class RegistrableObject(object):
     that should be automatically registered.
     """
 
-    __registry__ = None
-    __regid__: Union[None, str] = None
+    __registry__: Optional[str] = None
+    __regid__: Optional[str] = None
     __select__: Union[None, str, Predicate] = None
     __abstract__ = True # see doc snipppets below (in Registry class)