From 6b18cd11ca6c38e2e43fbb71450ec5bdc6b321b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EB=B0=A9=EC=84=B1=EB=B2=94=20=28Bang=20Seongbeom=29?=
 <bangseongbeom@gmail.com>
Date: Sat, 18 Apr 2026 02:06:41 +0900
Subject: [PATCH 1/2] Refactor WSGIEnvironment to use TypedDict

---
 Lib/wsgiref/types.py | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/Lib/wsgiref/types.py b/Lib/wsgiref/types.py
index ef0aead5b28b64..67894da933d49c 100644
--- a/Lib/wsgiref/types.py
+++ b/Lib/wsgiref/types.py
@@ -2,7 +2,7 @@
 
 from collections.abc import Callable, Iterable, Iterator
 from types import TracebackType
-from typing import Any, Protocol, TypeAlias
+from typing import Any, Literal, NotRequired, Protocol, TypeAlias, TypedDict
 
 __all__ = [
     "StartResponse",
@@ -26,7 +26,29 @@ def __call__(
         /,
     ) -> Callable[[bytes], object]: ...
 
-WSGIEnvironment: TypeAlias = dict[str, Any]
+WSGIEnvironment = TypedDict(
+    "WSGIEnvironment",
+    {
+        "REQUEST_METHOD": str,
+        "SCRIPT_NAME": NotRequired[str],
+        "PATH_INFO": NotRequired[str],
+        "QUERY_STRING": NotRequired[str],
+        "CONTENT_TYPE": NotRequired[str],
+        "CONTENT_LENGTH": NotRequired[str],
+        "SERVER_NAME": str,
+        "SERVER_PORT": str,
+        "SERVER_PROTOCOL": str,
+        "wsgi.version": tuple[Literal[1], Literal[0]],
+        "wsgi.url_scheme": str,
+        "wsgi.input": "InputStream",
+        "wsgi.errors": "ErrorStream",
+        "wsgi.multithread": Any,
+        "wsgi.multiprocess": Any,
+        "wsgi.run_once": Any,
+        "wsgi.file_wrapper": NotRequired["FileWrapper"],
+    },
+    extra_items=Any,
+)
 WSGIApplication: TypeAlias = Callable[[WSGIEnvironment, StartResponse],
     Iterable[bytes]]
 

From 58ab6f655f9f0c650aac7447d7cfa8d24098af16 Mon Sep 17 00:00:00 2001
From: "blurb-it[bot]" <43283697+blurb-it[bot]@users.noreply.github.com>
Date: Mon, 20 Apr 2026 18:24:37 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=93=9C=F0=9F=A4=96=20Added=20by=20blu?=
 =?UTF-8?q?rb=5Fit.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../next/Library/2026-04-20-18-24-36.gh-issue-86178.5gTefv.rst   | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Misc/NEWS.d/next/Library/2026-04-20-18-24-36.gh-issue-86178.5gTefv.rst

diff --git a/Misc/NEWS.d/next/Library/2026-04-20-18-24-36.gh-issue-86178.5gTefv.rst b/Misc/NEWS.d/next/Library/2026-04-20-18-24-36.gh-issue-86178.5gTefv.rst
new file mode 100644
index 00000000000000..c9058f672aa2f6
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-04-20-18-24-36.gh-issue-86178.5gTefv.rst
@@ -0,0 +1 @@
+Add the CGI and WSGI variables specified in :pep:`3333` to :data:`wsgiref.types.WSGIEnvironment`.