From 5732b8f34e3edc129135731217fd1a654ef961ad Mon Sep 17 00:00:00 2001
From: Kevin Kirsche <kevin.kirsche@one.verizon.com>
Date: Tue, 26 Jul 2022 05:17:45 -0400
Subject: [PATCH] email.Message.walk yields self (#8398)

This updates the generator used by `Message` to return `Self` so that it correctly changes when a `MIMEPart` or `EmailMessage`.

Fixes #8290
---
 stdlib/email/message.pyi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/stdlib/email/message.pyi b/stdlib/email/message.pyi
index 6544f8fc2..4e8f600f7 100644
--- a/stdlib/email/message.pyi
+++ b/stdlib/email/message.pyi
@@ -1,3 +1,4 @@
+from _typeshed import Self
 from collections.abc import Generator, Iterator, Sequence
 from email import _ParamsType, _ParamType
 from email.charset import Charset
@@ -55,7 +56,7 @@ class Message:
     def set_boundary(self, boundary: str) -> None: ...
     def get_content_charset(self, failobj: _T = ...) -> _T | str: ...
     def get_charsets(self, failobj: _T = ...) -> _T | list[str]: ...
-    def walk(self) -> Generator[Message, None, None]: ...
+    def walk(self: Self) -> Generator[Self, None, None]: ...
     def get_content_disposition(self) -> str | None: ...
     def as_string(self, unixfrom: bool = ..., maxheaderlen: int = ..., policy: Policy | None = ...) -> str: ...
     def as_bytes(self, unixfrom: bool = ..., policy: Policy | None = ...) -> bytes: ...