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

2020-11-20 12:49:32 -08:00 · 2020-11-20 12:49:32 -08:00 · 9fc319dc03
parent 4c24b08cd3
commit 9fc319dc03
1 changed files with 3 additions and 0 deletions
--- 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*.