Use typing.TYPE_CHECKING for typehints

1 files changed, 3 insertions, 2 deletions

diff --git a/sphinx/ext/autodoc/directive.py b/sphinx/ext/autodoc/directive.py
index 2a7c6b65a..f050b2ac4 100644
--- a/sphinx/ext/autodoc/directive.py
+++ b/sphinx/ext/autodoc/directive.py
@@ -7,6 +7,8 @@
     :license: BSD, see LICENSE for details.
 """
 
+from typing import TYPE_CHECKING
+
 from docutils import nodes
 from docutils.parsers.rst import Directive
 from docutils.statemachine import ViewList
@@ -17,8 +19,7 @@ from sphinx.util import logging
 from sphinx.util.docutils import switch_source_input
 from sphinx.util.nodes import nested_parse_with_titles
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from typing import Any, Dict, List, Set, Type  # NOQA
     from docutils.statemachine import State, StateMachine, StringList  # NOQA
     from docutils.utils import Reporter  # NOQA