[Python-checkins] bpo-36785: PEP 574 What's New entry (GH-13931)
Miss Islington (bot)
webhook-mailer at python.org
Sat Jun 15 12:03:01 EDT 2019
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
bpo-36785: PEP 574 What's New entry (GH-13931)
(cherry picked from commit c879ff247ae1b67a790ff98d2d59145302cd4e4e)
Co-authored-by: Antoine Pitrou <antoine at python.org>
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst
index 21ad11254730..1312a7433022 100644
@@ -54,7 +54,6 @@ For full details, see the :ref:`changelog <changelog>`.
Some notable items not yet covered here:
- * :pep:`574` - Pickle protocol 5 with out-of-band data buffer support
* :pep:`578` - Runtime audit hooks for potentially sensitive operations
* ``python -m asyncio`` runs a natively async REPL
@@ -261,6 +260,23 @@ See :pep:`590` for a full description.
(Contributed by Jeroen Demeyer and Mark Shannon in :issue:`36974`.)
+Pickle protocol 5 with out-of-band data buffers
+When :mod:`pickle` is used to transfer large data between Python processes
+in order to take advantage of multi-core or multi-machine processing,
+it is important to optimize the transfer by reducing memory copies, and
+possibly by applying custom techniques such as data-dependent compression.
+The :mod:`pickle` protocol 5 introduces support for out-of-band buffers
+where :pep:`3118`-compatible data can be transmitted separately from the
+main pickle stream, at the discretion of the communication layer.
+See :pep:`574` for a full description.
+(Contributed by Antoine Pitrou in :issue:`36785`.)
Other Language Changes
More information about the Python-checkins