def add_grades(cid, period): course = db.GqlQuery("SELECT * FROM Course WHERE cid=:1", cid).fetch(1)[0] grades = simplejson.loads(course.grades) for grade in grades: new_grade = Grade() new_grade.cid = cid new_grade.cname = course.name new_grade.grade = grade["grade"] new_grade.sid = grade["sid"] new_grade.period = grade["period"] new_grade.put()