From f552f4b2d635ae031e154374ba3a609c63d09d2b Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Fri, 20 Nov 2020 13:19:49 -0800
Subject: [PATCH] bpo-42360: Add advice to help avoid pickling issues.
 (GH-23305) (GH-23429)

---
 Doc/library/collections.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 549ac1bccad..2ffdb49dbe6 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -849,6 +849,9 @@ they add the ability to access fields by name instead of position index.
     Named tuple instances do not have per-instance dictionaries, so they are
     lightweight and require no more memory than regular tuples.
 
+    To support pickling, the named tuple class should be assigned to a variable
+    that matches *typename*.
+
     .. versionchanged:: 3.1
        Added support for *rename*.