From: Raymond Hettinger <rhettinger@users.noreply.github.com>
Date: Fri, 20 Nov 2020 20:49:32 +0000 (-0800)
Subject: bpo-42360: Add advice to help avoid pickling issues. (GH-23305)
X-Git-Tag: v3.10.0a3~129
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9fc319dc033fa32d298fe1c3f171b3d011ac04f0;p=thirdparty%2FPython%2Fcpython.git

bpo-42360: Add advice to help avoid pickling issues. (GH-23305)
---

diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index f538da5e1c9f..1293f542b043 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -862,6 +862,9 @@ 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*.