def createJson(self): request = self.request value = request.params['value'] print value myModelProvider = MyModelProvider(request.db_session) myModelProvider.create(value, 10) modelLists = myModelProvider.getList() # lists = [{'id':'1','value':'{"abc"="123"}'},{'id':'2','value':'{"xyz"="456"}'}] lists=[] for model in modelLists: list={} list['id'] = model.id list['value'] = model.value lists.append(list) return dict(title='Json Service', lists=lists)