From ccd8a9dce61641060bd8ba20b711bdf6ef0af834 Mon Sep 17 00:00:00 2001
From: wim glenn <hey@wimglenn.com>
Date: Thu, 6 Sep 2018 22:29:10 -0500
Subject: [PATCH 1/3] Fix inaccuracies about types that support membership
 tests. Closes https://bugs.python.org/issue28617

---
 Doc/library/stdtypes.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 87c64214c67db7..f7f59cd3a6bb9d 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -197,8 +197,8 @@ exception.
    operator: not in
 
 Two more operations with the same syntactic priority, :keyword:`in` and
-:keyword:`not in`, are supported only by sequence types (below).
-
+:keyword:`not in`, are supported by types that are :term:`iterable` or
+implement the :meth:`__contains__` method.
 
 .. _typesnumeric:
 

From 2e345693f5d953701d9251d7424f8086dda1b06a Mon Sep 17 00:00:00 2001
From: wim glenn <hey@wimglenn.com>
Date: Thu, 6 Sep 2018 22:40:17 -0500
Subject: [PATCH 2/3] Add the required NEWS entry

---
 .../next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst

diff --git a/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst b/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst
new file mode 100644
index 00000000000000..f54ad36aba5524
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst
@@ -0,0 +1,2 @@
+Fixed info in the stdtypes docs concerning the types that support membership
+tests

From e82cbd24131e05f05fc41db0f7877ec90999ae7b Mon Sep 17 00:00:00 2001
From: Mariatta <Mariatta@users.noreply.github.com>
Date: Tue, 11 Sep 2018 08:31:57 -0700
Subject: [PATCH 3/3] Update 2018-09-06-22-39-47.bpo-28617.MjnJLz.rst

---
 .../next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst b/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst
index f54ad36aba5524..281afad71d2731 100644
--- a/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst
+++ b/Misc/NEWS.d/next/Documentation/2018-09-06-22-39-47.bpo-28617.MjnJLz.rst
@@ -1,2 +1,2 @@
 Fixed info in the stdtypes docs concerning the types that support membership
-tests
+tests.