Use typing.TYPE_CHECKING for typehints

1 files changed, 3 insertions, 2 deletions

diff --git a/sphinx/directives/other.py b/sphinx/directives/other.py
index 4d983185f..6c1a4cd86 100644
--- a/sphinx/directives/other.py
+++ b/sphinx/directives/other.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, directives
 from docutils.parsers.rst.directives.admonitions import BaseAdmonition
@@ -21,8 +23,7 @@ from sphinx.util.matching import patfilter
 from sphinx.util.nodes import explicit_title_re, set_source_info, \
     process_index_entry
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from typing import Any, Dict, List, Tuple  # NOQA
     from sphinx.application import Sphinx  # NOQA