def decorator(func):
         @wraps(func)
-        def decorated(self, request, * args, ** kwargs):
+        def decorated(self, request, *args, **kwargs):
             form = formclass(getattr(request, source), request.FILES)
 
             if not form.is_valid():
 
     def getter(key):
         nkey = get_key(key)
-        if not isinstance(key, unicode):
-            ukey = key.decode('utf-8')
+        if not isinstance(nkey, unicode):
+            ukey = nkey.decode('utf-8')
         else:
             ukey = nkey