* Fixed issue #29, thank you to Jason Nolen for reporting it. Prior

versions of Python used a different name for base64 functions, so 
  a wrapper has been added to lib.py to enable both old- and new-
  style functions to be used.

lib.py

@@ -8,6 +8,14 @@ lib.py - Common functions (eg multipart e-mail)
 
 chart_colours = ('80C65A', '990066', 'FF9900', '3399CC', 'BBCCED', '3399CC', 'FFCC33')
 
+try:
+    from base64 import urlsafe_b64encode as b64encode
+except ImportError:
+    from base64 import encodestring as b64encode
+try:
+    from base64 import urlsafe_b64decode as b64decode
+except ImportError:
+    from base64 import decodestring as b64decode
 
 def send_templated_mail(template_name, email_context, recipients, sender=None, bcc=None, fail_silently=False, files=None):
     """
@@ -327,3 +335,4 @@ def safe_template_context(ticket):
     context['ticket']['assigned_to'] = context['ticket']['_get_assigned_to']
 
     return context
+

models.py

@@ -880,14 +880,16 @@ class UserSettings(models.Model):
 
     def _set_settings(self, data):
         # data should always be a Python dictionary.
-        import cPickle, base64
-        self.settings_pickled = base64.urlsafe_b64encode(cPickle.dumps(data))
+        import cPickle
+        from helpdesk.lib import b64encode
+        self.settings_pickled = b64encode(cPickle.dumps(data))
     
     def _get_settings(self):
         # return a python dictionary representing the pickled data.
-        import cPickle, base64
+        import cPickle
+        from helpdesk.lib import b64decode
         try:
-            return cPickle.loads(base64.urlsafe_b64decode(str(self.settings_pickled)))
+            return cPickle.loads(b64decode(str(self.settings_pickled)))
         except cPickle.UnpicklingError:
             return {}
 

views/staff.py

@@ -308,8 +308,9 @@ def ticket_list(request):
         if not (saved_query.shared or saved_query.user == request.user):
             return HttpResponseRedirect(reverse('helpdesk_list'))
 
-        import base64, cPickle
-        query_params = cPickle.loads(base64.urlsafe_b64decode(str(saved_query.query)))
+        import cPickle
+        from helpdesk.lib import b64decode
+        query_params = cPickle.loads(b64decode(str(saved_query.query)))
     elif not (  request.GET.has_key('queue')
             or  request.GET.has_key('assigned_to')
             or  request.GET.has_key('status')
@@ -366,8 +367,9 @@ def ticket_list(request):
 
     tickets = apply_query(Ticket.objects.select_related(), query_params)
 
-    import cPickle, base64
-    urlsafe_query = base64.urlsafe_b64encode(cPickle.dumps(query_params))
+    import cPickle
+    from helpdesk.lib import b64encode
+    urlsafe_query = b64encode(cPickle.dumps(query_params))
 
     user_saved_queries = SavedSearch.objects.filter(Q(user=request.user) | Q(shared__exact=True))