subclasses of property() and other data descriptors.  Removes the never
publicly used, never documented unittest.mock.DescriptorTypes tuple.

for subclasses of property() and other data descriptors.

as path in compile() and similar functions is now deprecated.

as paths in os functions is now deprecated.

Initial patch by py.user.

Clarify NotImplemented vs NotImplementedError.  Initial patch by Emmanuel Barry.  Closes issue 27242.

Reported by Linda Pescatore on docs@.

The conflict occurs with Min GW, which already defines REPARSE_DATA_BUFFER.
Also, Min GW uses a lowercase <windows.h> filename.

Since PEP 3123, PyObject_HEAD only has one field named ob_base.
Users now need to use the Py_TYPE macro instead of self->ob_type.

Initial patch by Ammar Askar.