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gh-76187: Document the c typecode for multiprocessing.Array. (#132504)

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* Document the `c` typecode for `multiprocessing.Array`.

* Add quotes

* Mention that 'w' is not supported
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Tomas R. 2026-01-02 20:18:32 +01:00 committed by GitHub
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Doc/library/multiprocessing.rst
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@ -1693,11 +1693,14 @@ inherited by child processes.
value is actually a synchronized wrapper for the array.
*typecode_or_type* determines the type of the elements of the returned array:
it is either a ctypes type or a one character typecode of the kind used by
the :mod:`array` module. If *size_or_initializer* is an integer, then it
determines the length of the array, and the array will be initially zeroed.
Otherwise, *size_or_initializer* is a sequence which is used to initialize
the array and whose length determines the length of the array.
it is either a :ref:`ctypes type <ctypes-fundamental-data-types>` or a one
character typecode of the kind used by the :mod:`array` module with the
exception of ``'w'``, which is not supported. In addition, the ``'c'``
typecode is an alias for :class:`ctypes.c_char`. If *size_or_initializer*
is an integer, then it determines the length of the array, and the array
will be initially zeroed. Otherwise, *size_or_initializer* is a sequence
which is used to initialize the array and whose length determines the length
of the array.
If *lock* is ``True`` (the default) then a new lock object is created to
synchronize access to the value. If *lock* is a :class:`Lock` or