Question

Code:

class trafikformu(db.Model):

    title = db.StringProperty()

class QueryHandler(webapp.RequestHandler):
    def get(self,id):
        v = form.get_by_id(int(id))
        self.response.out.write(v.title) # AttributeError

The line self.response.out.write(v.title) gives this error: 'NoneType' object has no attribute 'title'.

How can i solve this problem?

Answer 1

The function form.get_by_id(int(id)) returned None for the given id, so v has no attribute title since it is None.