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| author | Dima Tisnek <dimaqq@gmail.com> | 2019-11-03 11:55:33 (GMT) |
|---|---|---|
| committer | Tal Einat <taleinat+github@gmail.com> | 2019-11-03 11:55:33 (GMT) |
| commit | d0e0f5bf0c07ca025f54df21fd1df55ee430d9fc (patch) | |
| tree | 58872f6a2df1125a2c5ef23485aa994625d90cff /Doc/library | |
| parent | 99b7701978d1fdc81e10c31d1ad8cce2c0c2d848 (diff) | |
| download | cpython-d0e0f5bf0c07ca025f54df21fd1df55ee430d9fc.zip cpython-d0e0f5bf0c07ca025f54df21fd1df55ee430d9fc.tar.gz cpython-d0e0f5bf0c07ca025f54df21fd1df55ee430d9fc.tar.bz2 | |
bpo-38388: Document pickle protocol version 5 (GH-16639)
Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/pickle.rst | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst index eb58178..779b60e 100644 --- a/Doc/library/pickle.rst +++ b/Doc/library/pickle.rst @@ -136,7 +136,7 @@ The module :mod:`pickletools` contains tools for analyzing data streams generated by :mod:`pickle`. :mod:`pickletools` source code has extensive comments about opcodes used by pickle protocols. -There are currently 5 different protocols which can be used for pickling. +There are currently 6 different protocols which can be used for pickling. The higher the protocol used, the more recent the version of Python needed to read the pickle produced. @@ -160,6 +160,10 @@ to read the pickle produced. Refer to :pep:`3154` for information about improvements brought by protocol 4. +* Protocol version 5 was added in Python 3.8. It adds support for out-of-band + data and speedup for in-band data. Refer to :pep:`574` for information about + improvements brought by protocol 5. + .. note:: Serialization is a more primitive notion than persistence; although :mod:`pickle` reads and writes file objects, it does not handle the issue of |