bpo-39426: Fix outdated default and highest protocols in docs (GH-18154)
Some portions of the pickle documentation hadn't been updated for the pickle protocol changes in Python 3.8 (new protocol 5, default protocol 4). This PR fixes those docs.
https://bugs.python.org/issue39426
(cherry picked from commit e9652e8d58392f5022759ba06b444ce970eb12db)
Co-authored-by: Mark Dickinson <mdickinson@enthought.com>
diff --git a/Lib/pickle.py b/Lib/pickle.py
index 71aa57d..515cb8a 100644
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -409,9 +409,9 @@
"""This takes a binary file for writing a pickle data stream.
The optional *protocol* argument tells the pickler to use the
- given protocol; supported protocols are 0, 1, 2, 3 and 4. The
- default protocol is 4. It was introduced in Python 3.4, it is
- incompatible with previous versions.
+ given protocol; supported protocols are 0, 1, 2, 3, 4 and 5.
+ The default protocol is 4. It was introduced in Python 3.4, and
+ is incompatible with previous versions.
Specifying a negative protocol version selects the highest
protocol version supported. The higher the protocol used, the