[issue24009] Get rid of rare format units in PyArg_Parse*

[Martin Panter]

Martin Panter added the comment:

“u#” should not be deprecated without first deprecating “u”, which is less useful due to not returning a buffer length.

Also, I have always been mystified about how “s#”, “z#”, “y” and “y#” can properly to return a pointer into a buffer for arbitrary immutable bytes-like objects, without requiring PyBuffer_Release() to be called. Perhaps this is bad design to be discouraged. Or maybe a documentation oversight somewhere.

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nosy: +vadmium

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24009>
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