remove python2 support from awxkit

awxkit/awxkit/cli/utils.py

@@ -5,8 +5,6 @@ import os
 import sys
 import threading
 
-import six
-
 _color = threading.local()
 _color.enabled = True
 
@@ -38,29 +36,6 @@ class CustomRegistryMeta(type):
 
 class HelpfulArgumentParser(ArgumentParser):
 
-    def __init__(self, *args, **kwargs):
-        super(HelpfulArgumentParser, self).__init__(*args, **kwargs)
-        if six.PY2:
-            # backport parser aliases support to py2
-            # see: https://github.com/python/cpython/commit/fd311a712d5876c3a3efff265978452eea759f85
-            SubParsersAction = self._registries['action']['parsers']
-
-            class _SubParsersAction(SubParsersAction):
-
-                def add_parser(self, name, **kwargs):
-                    aliases = kwargs.pop('aliases', [])
-                    parser = super(_SubParsersAction, self).add_parser(name, **kwargs)
-                    if aliases:
-                        self._choices_actions[-1].metavar = ' '.join([
-                            name,
-                            '({})'.format(', '.join(aliases))
-                        ])
-                    for alias in aliases:
-                        self._name_parser_map[alias] = parser
-                    return parser
-
-            self._registries['action']['parsers'] = _SubParsersAction
-
     def error(self, message):  # pragma: nocover
         """Prints a usage message incorporating the message to stderr and
         exits.