moviedata_ans.py 文件源码

def add(self, movie):
        """Adds the given movie to the list if it isn't already
        present. Returns True if added; otherwise returns False."""
        if id(movie) in self.__movieFromId:
            return False
        key = self.key(movie.title, movie.year)
        bisect.insort_left(self.__movies, [key, movie])
        self.__movieFromId[id(movie)] = movie
        self.__dirty = True
        return True