Use typing.TYPE_CHECKING for typehints

1 files changed, 2 insertions, 2 deletions

diff --git a/sphinx/domains/python.py b/sphinx/domains/python.py
index 5456ca13a..a87c0482e 100644
--- a/sphinx/domains/python.py
+++ b/sphinx/domains/python.py
@@ -10,6 +10,7 @@
 """
 
 import re
+from typing import TYPE_CHECKING
 
 from docutils import nodes
 from docutils.parsers.rst import Directive, directives
@@ -24,8 +25,7 @@ from sphinx.util import logging
 from sphinx.util.docfields import Field, GroupedField, TypedField
 from sphinx.util.nodes import make_refnode
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from typing import Any, Dict, Iterable, Iterator, List, Tuple, Union  # NOQA
     from sphinx.application import Sphinx  # NOQA
     from sphinx.builders import Builder  # NOQA