Support Django 1.2 and 1.3 as well

README.rst

@@ -46,6 +46,11 @@ Use pip_ like::
 
 .. _pip:  https://pypi.python.org/pypi/pip
 
+Note that in Django 1.2 and 1.3 requires [six](https://pythonhosted.org/six/) as well.
+Install it with::
+
+    $ pip install six
+
 Usage
 -----
 

src/permission/compat.py

@@ -69,3 +69,9 @@ def isstr(x):
 else:
     def isstr(x):
         return isinstance(x, basestring)
+
+try:
+    from django.util import six
+except ImportError:
+    # Django 1.2/1.3 does not have six
+    import six

src/permission/utils/autodiscover.py

@@ -1,6 +1,6 @@
 # coding=utf-8
 import copy
-from django.utils import six
+from permission.compat import six
 
 
 def autodiscover(module_name=None):

tox.ini

@@ -30,6 +30,8 @@ deps=
     django17: django>=1.7,<1.8
     django18: django>=1.8,<1.9
     django19: django>=1.9,<1.10
+    django12: six
+    django13: six
     -rrequirements.txt
     -rrequirements-test.txt
     coverage