XXX about extreme expense of test_no_leaking() on Windows.  I'm not sure what this is trying to do.  If it's necessary for it to create > 1000 processes, it should be controlled by a new resource and not run by default on Windows.
XXX about extreme expense of test_no_leaking() on Windows.  I'm not sure
what this is trying to do.  If it's necessary for it to create > 1000
processes, it should be controlled by a new resource and not run by
default on Windows.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator