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gh-113313: Note that slice support is not required for all sequences. (gh-113377)

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Raymond Hettinger 2023-12-21 15:54:59 -06:00 • committed by GitHub
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@ -2808,9 +2808,9 @@ through the object's keys; for sequences, it should iterate through the values.
.. method:: object.__getitem__(self, key) .. method:: object.__getitem__(self, key)
Called to implement evaluation of ``self[key]``. For :term:`sequence` types, Called to implement evaluation of ``self[key]``. For :term:`sequence` types,
the accepted keys should be integers and slice objects. Note that the the accepted keys should be integers. Optionally, they may support
special interpretation of negative indexes (if the class wishes to emulate a :class:`slice` objects as well. Negative index support is also optional.
:term:`sequence` type) is up to the :meth:`__getitem__` method. If *key* is If *key* is
of an inappropriate type, :exc:`TypeError` may be raised; if *key* is a value of an inappropriate type, :exc:`TypeError` may be raised; if *key* is a value
outside the set of indexes for the sequence (after any special outside the set of indexes for the sequence (after any special
interpretation of negative values), :exc:`IndexError` should be raised. For interpretation of negative values), :exc:`IndexError` should be raised. For