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gh-61481: Document that memoryview, range, and slice cannot be subclassed #153766

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gh-61481: Document that memoryview, range, and slice cannot be subclassed #153766

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6 changes: 6 additions & 0 deletions Doc/library/functions.rst
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Expand Up @@ -1292,6 +1292,8 @@ are always available. They are listed here in alphabetical order.
Return a "memory view" object created from the given argument. See
:ref:`typememoryview` for more information.

This class cannot be subclassed.


.. function:: min(iterable, /, *, key=None)
min(iterable, /, *, default, key=None)
Expand Down Expand Up @@ -1749,6 +1751,8 @@ are always available. They are listed here in alphabetical order.
Rather than being a function, :class:`range` is actually an immutable
sequence type, as documented in :ref:`typesseq-range` and :ref:`typesseq`.

This class cannot be subclassed.


.. function:: repr(object, /)

Expand Down Expand Up @@ -1920,6 +1924,8 @@ are always available. They are listed here in alphabetical order.
See :func:`itertools.islice` for an alternate version that returns an
:term:`iterator`.

This class cannot be subclassed.

.. attribute:: slice.start
slice.stop
slice.step
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