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| author | Gregory P. Smith <greg@krypto.org> | 2018-12-09 11:42:58 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-09 11:42:58 -0800 |
| commit | e328753d91379274b699b93decff45de07854617 (patch) | |
| tree | 87ea1246e3c1142d6c16535c3e81020ff8880579 /Doc/library/pickle.rst | |
| parent | 25648d05ac3d74c436f951579bbb716372fb8cc7 (diff) | |
| download | cpython-git-e328753d91379274b699b93decff45de07854617.tar.gz | |
bpo-22005: Document the reality of pickle compatibility. (GH-11054)
Diffstat (limited to 'Doc/library/pickle.rst')
| -rw-r--r-- | Doc/library/pickle.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst index 5fe49a013b..100a6a1345 100644 --- a/Doc/library/pickle.rst +++ b/Doc/library/pickle.rst @@ -71,7 +71,9 @@ The :mod:`pickle` module differs from :mod:`marshal` in several significant ways :file:`.pyc` files, the Python implementers reserve the right to change the serialization format in non-backwards compatible ways should the need arise. The :mod:`pickle` serialization format is guaranteed to be backwards compatible - across Python releases. + across Python releases provided a compatible pickle protocol is chosen and + pickling and unpickling code deals with Python 2 to Python 3 type differences + if your data is crossing that unique breaking change language boundary. Comparison with ``json`` ^^^^^^^^^^^^^^^^^^^^^^^^ |