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| author | Serhiy Storchaka <storchaka@gmail.com> | 2018-05-20 05:48:12 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-05-20 05:48:12 (GMT) |
| commit | f5e7b1999f46e592d42dfab51563ea5411946fb7 (patch) | |
| tree | 3001498a55273fc45ac4d2c7b393190d4d2dbd42 /Doc/whatsnew | |
| parent | 8ae8e6af37f29163ee263e293570cb892dc5b5d5 (diff) | |
| download | cpython-f5e7b1999f46e592d42dfab51563ea5411946fb7.zip cpython-f5e7b1999f46e592d42dfab51563ea5411946fb7.tar.gz cpython-f5e7b1999f46e592d42dfab51563ea5411946fb7.tar.bz2 | |
bpo-23722: Raise a RuntimeError for absent __classcell__. (GH-6931)
A DeprecationWarning was emitted in Python 3.6-3.7.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index 11538e2..9aad908 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -146,6 +146,11 @@ Changes in the Python API a database if it does not exist. (Contributed by Serhiy Storchaka in :issue:`32749`.) +* A :exc:`RuntimeError` is now raised when the custom metaclass doesn't + provide the ``__classcell__`` entry in the namespace passed to + ``type.__new__``. A :exc:`DeprecationWarning` was emitted in Python + 3.6--3.7. (Contributed by Serhiy Storchaka in :issue:`23722`.) + CPython bytecode changes ------------------------ |