Remove six

This library no longer supports python 2 thus usage of six is no longer
needed.

Change-Id: Ie61802ea3b3a995666a8d66e08c9afd129e15f04

dracclient/tests/test_wsman.py

@@ -19,7 +19,6 @@ import lxml.etree
 import lxml.objectify
 import requests.exceptions
 import requests_mock
-import six
 
 from dracclient import exceptions
 from dracclient.tests import base
@@ -58,8 +57,9 @@ class ClientTestCase(base.BaseTest):
 
     @requests_mock.Mocker()
     def test_enumerate_with_invalid_utf8(self, mock_requests):
-        mock_requests.post('https://1.2.3.4:443/wsman',
-                           content=six.b('<result>yay!\xC0</result>'))
+        mock_requests.post(
+            'https://1.2.3.4:443/wsman',
+            content='<result>yay!\xC0</result>'.encode('latin-1'))
 
         resp = self.client.enumerate('resource')
         self.assertEqual('yay!', resp.text)

dracclient/wsman.py

@@ -13,7 +13,6 @@
 
 import logging
 import re
-import six
 import time
 import uuid
 
@@ -167,9 +166,10 @@ class Client(object):
 
             # Filter out everything except for printable ASCII characters and
             # tab
-            resp_xml = ElementTree.fromstring(re.sub(six.b('[^\x20-\x7e\t]'),
-                                                     six.b(''),
-                                                     resp.content))
+            resp_xml = ElementTree.fromstring(re.sub(
+                '[^\x20-\x7e\t]'.encode('latin-1'),
+                ''.encode('latin-1'),
+                resp.content))
 
         if auto_pull:
             # The first response returns "<wsman:Items>"