use force_text instead of force_unicode

debug_toolbar/utils/tracking/db.py

@@ -5,20 +5,20 @@
 
 from django.conf import settings
 from django.template import Node
-from django.utils.encoding import force_unicode, smart_str
+from django.utils.encoding import force_text, smart_str
 
 from debug_toolbar.utils import ms_from_timedelta, tidy_stacktrace, \
                                 get_template_info, get_stack
 from debug_toolbar.utils.compat.db import connections
 
 try:
     import json
-except ImportError: # python < 2.6
+except ImportError:  # python < 2.6
     from django.utils import simplejson as json
 
 try:
     from hashlib import sha1
-except ImportError: # python < 2.5
+except ImportError:  # python < 2.5
     from django.utils.hashcompat import sha_constructor as sha1
 
 # TODO:This should be set in the toolbar loader as a default and panels should
@@ -93,7 +93,7 @@ def _quote_params(self, params):
 
     def _decode(self, param):
         try:
-            return force_unicode(param, strings_only=True)
+            return force_text(param, strings_only=True)
         except UnicodeDecodeError:
             return '(encoded string)'