pickle_ex.py 文件源码

def load(self, filename=None):
        self.check_filename(filename)

        fh = None
        try:
            fh = open(self.filename, 'rb')
            data = pickle.load(fh)
            (self.title, self.year, self.duration, self.director_id) = data
        except (EnvironmentError, pickle.PicklingError) as err:
            raise LoadError(str(err))
        finally:
            if fh is not None:
                fh.close()