Patch by Guilherme Polo and Roger Serwy.

#13933 refine patch using 'new' builtin

descriptors.

This dict entry is added a few lines after if the bzip2 module is
available, but removing this line was forgotten.

pysetup create, the setup.cfg creation helper, used to convert
package_data (from an existing setup.py) into extra_files, the
replacement for MANIFEST.in, but these files are only present in sdists,
not installed: they don’t have the same use case at all, so converting
one into the other did not work.

Even though the resources system obsoletes data_files and package_data
(see bug discussion), package_data still exists to allow compatibility
with distutils and thus an easier transition.  In setup.py, the values
are lists of glob patterns, so the setup.cfg syntax needed a way to
express multiple values too.

Doc for this option will be added later as part of the big packaging doc
patches.  For now, the test serves as example.

Reported by Erik Bray.

module, like hashlib.  (Patch by Roger Serwy)

multiprocessing.Connection socket can't be bound.

multiprocessing.Connection socket can't be bound.