Use typing.TYPE_CHECKING for typehints

1 files changed, 2 insertions, 2 deletions

diff --git a/sphinx/builders/changes.py b/sphinx/builders/changes.py
index e8b6650cb..eb7bb1554 100644
--- a/sphinx/builders/changes.py
+++ b/sphinx/builders/changes.py
@@ -11,6 +11,7 @@
 
 import codecs
 from os import path
+from typing import TYPE_CHECKING
 
 from six import iteritems
 
@@ -24,8 +25,7 @@ from sphinx.util.fileutil import copy_asset_file
 from sphinx.util.osutil import ensuredir, os_path
 from sphinx.util.pycompat import htmlescape
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from typing import Any, Dict, List, Tuple  # NOQA
     from sphinx.application import Sphinx  # NOQA