Hello TYPE_CHECKING!

4 files changed, 8 insertions, 11 deletions

diff --git a/sphinx/directives/__init__.py b/sphinx/directives/__init__.py
index 0d9490f31..3d528e570 100644
--- a/sphinx/directives/__init__.py
+++ b/sphinx/directives/__init__.py
@@ -10,7 +10,7 @@
 
 import re
 from typing import Any, Dict, List, Tuple
-from typing import cast
+from typing import TYPE_CHECKING, cast
 
 from docutils import nodes
 from docutils.nodes import Node
@@ -26,8 +26,7 @@ from sphinx.util.docfields import DocFieldTransformer, Field, TypedField
 from sphinx.util.docutils import SphinxDirective
 from sphinx.util.typing import DirectiveOption
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from sphinx.application import Sphinx
 
 
diff --git a/sphinx/directives/code.py b/sphinx/directives/code.py
index 8c19dd0c5..c743ec69e 100644
--- a/sphinx/directives/code.py
+++ b/sphinx/directives/code.py
@@ -10,6 +10,7 @@ import sys
 import warnings
 from difflib import unified_diff
 from typing import Any, Dict, List, Tuple
+from typing import TYPE_CHECKING
 
 from docutils import nodes
 from docutils.nodes import Element, Node
@@ -24,8 +25,7 @@ from sphinx.util import logging
 from sphinx.util import parselinenos
 from sphinx.util.docutils import SphinxDirective
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from sphinx.application import Sphinx
 
 logger = logging.getLogger(__name__)
diff --git a/sphinx/directives/other.py b/sphinx/directives/other.py
index e4fcc0f5c..949e85235 100644
--- a/sphinx/directives/other.py
+++ b/sphinx/directives/other.py
@@ -8,7 +8,7 @@
 
 import re
 from typing import Any, Dict, List
-from typing import cast
+from typing import TYPE_CHECKING, cast
 
 from docutils import nodes
 from docutils.nodes import Element, Node
@@ -26,8 +26,7 @@ from sphinx.util.docutils import SphinxDirective
 from sphinx.util.matching import Matcher, patfilter
 from sphinx.util.nodes import explicit_title_re
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from sphinx.application import Sphinx
 
 
diff --git a/sphinx/directives/patches.py b/sphinx/directives/patches.py
index 8a27c0170..c4535e119 100644
--- a/sphinx/directives/patches.py
+++ b/sphinx/directives/patches.py
@@ -8,7 +8,7 @@
 
 import warnings
 from typing import Any, Dict, List, Tuple
-from typing import cast
+from typing import TYPE_CHECKING, cast
 
 from docutils import nodes
 from docutils.nodes import Node, make_id, system_message
@@ -22,8 +22,7 @@ from sphinx.domains.math import MathDomain
 from sphinx.util.docutils import SphinxDirective
 from sphinx.util.nodes import set_source_info
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from sphinx.application import Sphinx