Get rid of six in ipython_config.py

import six

import sys

import logging

from os.path import join, dirname

python_exe = 'python3' if six.PY3 else 'python2'

c = get_config()

	('ls', 'ls --color=auto -lh'),

	('rm', 'rm'),

	('sudo', 'sudo'),

	('setup', '{0} setup.py'.format(python_exe)),

	('setup', '{0} setup.py'.format(sys.executable)),

	('setup2', 'python2 setup.py'),

	('setup3', 'python3 setup.py'),

	('manage', '{0} manage.py'.format(python_exe)),

	('manage', '{0} manage.py'.format(sys.executable)),

	('manage2', 'python2 manage.py'),

	('manage3', 'python3 manage.py'),

	('rpdb', 'screen -c {0} {1} -m rpdb2 -s'

		.format(join(dirname(__file__), 'screen-debug.conf'), python_exe)),

	('python', python_exe),

		.format(join(dirname(__file__), 'screen-debug.conf'), sys.executable)),

	('python', sys.executable),

	('python2', 'python2'),

	('python3', 'python3'),

	('pip', '{0} -m pip'.format(python_exe)),

]

if sys.version_info.major == 2:

	c.AliasManager.user_aliases.extend([

		('pip', '{0} -m pip'.format(sys.executable)),

	])

c.InteractiveShellApp.exec_lines = [

	'from importlib import reload',

]