(py-mode-map): Bind py-mark-def-or-class to C-M-h with a different spelling so that it doesn't clobber the standard M-BS binding.  This should be portable between X/Emacsen.
(py-mode-map): Bind py-mark-def-or-class to C-M-h with a different
spelling so that it doesn't clobber the standard M-BS binding.  This
should be portable between X/Emacsen.

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