fixed nose parametrized when used on objects

rhodecode/tests/nose_parametrized.py

@@ -92,7 +92,7 b' def parameterized_expand_helper(func_nam'
         if self != ():
             self = (self,)
         return func(*(self + args))
-    parameterized_expand_helper_helper.__name__ = func_name
+    parameterized_expand_helper_helper.__name__ = str(func_name)
     return parameterized_expand_helper_helper