Use python_2_unicode_compatible from Django rather than compat

redis_cache/compat.py

@@ -26,19 +26,3 @@ if django.VERSION[:2] >= (1, 6):
     DEFAULT_TIMEOUT = DJANGO_DEFAULT_TIMEOUT
 else:
     DEFAULT_TIMEOUT = None
-
-
-def python_2_unicode_compatible(klass):
-    """
-    A decorator that defines __unicode__ and __str__ methods under Python 2.
-    Under Python 3 it does nothing.
-
-    To support Python 2 and 3 with a single code base, define a __str__ method
-    returning text and apply this decorator to the class.
-
-    Backported from Django 1.5+.
-    """
-    if not PY3:
-        klass.__unicode__ = klass.__str__
-        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
-    return klass

redis_cache/utils.py

@@ -2,11 +2,10 @@ import importlib
 import warnings
 
 from django.core.exceptions import ImproperlyConfigured
+from django.utils.encoding import python_2_unicode_compatible
 from redis.connection import SSLConnection
 
-from redis_cache.compat import (
-    smart_text, python_2_unicode_compatible, parse_qs, urlparse
-)
+from redis_cache.compat import smart_text, parse_qs, urlparse
 
 try:
     basestring
@@ -26,13 +25,13 @@ class CacheKey(object):
     def __eq__(self, other):
         return self._versioned_key == other
 
-    def __unicode__(self):
+    def __str__(self):
         return smart_text(self._versioned_key)
 
     def __hash__(self):
         return hash(self._versioned_key)
 
-    __repr__ = __str__ = __unicode__
+    __repr__ = __str__
 
 
 def get_servers(location):