BUG: collect doctests from docstrings of data descriptors

[ev-br]

cross-ref python/cpython#127962, numpy/numpy#28002

fixes gh-178

[ev-br]

cc @mattip seems to be working as a workaround for numpy/numpy#28002, would you double-check?
(of course, it smokes several issues in previously-never-tested docstrings :-))

[mattip]

is there a reason to collect the descriptors, or could this be rewritten as

for name_, method in inspect.getmembers(obj):
    if inspect.isdatadescriptor(method):
        tests += super().find(
            method, f'{name}.{name_}', module, globs, extraglobs
        )

Not critical, whatever you think

[mattip]

LGTM, one little nit.

[ev-br]

Thanks Matti! Adopted your spelling of the snippet, it's nicer indeed. And it's in.

[mattip]

Will you be tagging a new release?

[ev-br]

I'd like to have gh-179 in it, too.

[ev-br]

OK, scipy-doctest==1.6 is on pypi, has both this and gh-179. Expect some breakage around numpy dtypes :-).