(py-python-command-args): New variable, allows user to customize the arguments past to py-python-command when invoking the Python shell.
(py-python-command-args): New variable, allows user to customize the
arguments past to py-python-command when invoking the Python shell.

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