Hello TYPE_CHECKING!

1 files changed, 2 insertions, 3 deletions

diff --git a/sphinx/util/nodes.py b/sphinx/util/nodes.py
index 6a3c6591d..406511815 100644
--- a/sphinx/util/nodes.py
+++ b/sphinx/util/nodes.py
@@ -11,7 +11,7 @@
 import re
 import warnings
 from typing import Any, Callable, Iterable, List, Set, Tuple, Type
-from typing import cast
+from typing import TYPE_CHECKING, cast
 
 from docutils import nodes
 from docutils.nodes import Element, Node
@@ -24,8 +24,7 @@ from sphinx.deprecation import RemovedInSphinx40Warning
 from sphinx.locale import __
 from sphinx.util import logging
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from sphinx.builders import Builder
     from sphinx.environment import BuildEnvironment
     from sphinx.utils.tags import Tags