From 0cff7fea713df47de2cce50042077366629fa587 Mon Sep 17 00:00:00 2001
From: Alex Waygood <Alex.Waygood@Gmail.com>
Date: Sun, 3 Jul 2022 17:42:14 +0100
Subject: [PATCH] `http.cookiejar.MozillaCookieJar.header` does not exist in
 3.10+ (#8228)

---
 stdlib/http/cookiejar.pyi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/stdlib/http/cookiejar.pyi b/stdlib/http/cookiejar.pyi
index 83da7faaf..af33472a3 100644
--- a/stdlib/http/cookiejar.pyi
+++ b/stdlib/http/cookiejar.pyi
@@ -53,7 +53,8 @@ class FileCookieJar(CookieJar):
     def revert(self, filename: str | None = ..., ignore_discard: bool = ..., ignore_expires: bool = ...) -> None: ...
 
 class MozillaCookieJar(FileCookieJar):
-    header: ClassVar[str]  # undocumented
+    if sys.version_info < (3, 10):
+        header: ClassVar[str]  # undocumented
 
 class LWPCookieJar(FileCookieJar):
     def as_lwp_str(self, ignore_discard: bool = ..., ignore_expires: bool = ...) -> str: ...  # undocumented