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Diffstat (limited to 'Doc/whatsnew/3.7.rst')
| -rw-r--r-- | Doc/whatsnew/3.7.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst index 24a1dc4..a0c20a0 100644 --- a/Doc/whatsnew/3.7.rst +++ b/Doc/whatsnew/3.7.rst @@ -581,6 +581,19 @@ Changes in the Python API in the output. (Contributed by Utkarsh Upadhyay in :issue:`30302`.) +Changes in the C API +-------------------- + +* The function :c:func:`PySlice_GetIndicesEx` is considered not safe for + resizable sequences. If the slice indices are not instances of :class:`int`, + but objects that implement the :meth:`!__index__` method, the sequence can be + resized after passing its length to :c:func:`!PySlice_GetIndicesEx`. This + can lead to returning indices out of the length of the sequence. For + avoiding possible problems use new functions :c:func:`PySlice_Unpack` and + :c:func:`PySlice_AdjustIndices`. + (Contributed by Serhiy Storchaka in :issue:`27867`.) + + CPython bytecode changes ------------------------ |