[issue23708] PEP 475: Add _Py_read() and _Py_write() functions

[Roundup Robot]

Roundup Robot added the comment:

New changeset 07fd54208434 by Victor Stinner in branch 'default':
Issue #23708: Save/restore errno in _Py_read() and _Py_write()
https://hg.python.org/cpython/rev/07fd54208434

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<http://bugs.python.org/issue23708>
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