Change __enter__ return type to Self

Author: HayaoSuzuki

poetry.lock

@@ -40,6 +40,7 @@ optional = true
 [tool.poetry.group.develop.dependencies]
 pre-commit = ">=2.20,<5.0"
 requests = "*"
+typing_extensions = { version = ">=4.0", markers = "python_version < '3.11'" }
 Sphinx = ">=5.1.1,<8.0.0"
 sphinx-rtd-theme = ">=1,<4"
 reno = "*"

pyproject.toml

@@ -33,11 +33,17 @@
 from werkzeug.serving import make_server
 
 if TYPE_CHECKING:
+    import sys
     from ssl import SSLContext
     from types import TracebackType
 
     from werkzeug.serving import BaseWSGIServer
 
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
+
 URI_DEFAULT = ""
 METHOD_ALL = "__ALL"
 
@@ -879,7 +885,7 @@ def application(self, request: Request) -> Response:
         self.log.append((request, response))
         return response
 
-    def __enter__(self) -> HTTPServerBase:  # noqa: PYI034
+    def __enter__(self) -> Self:
         """
         Provide the context API