sessions.py 文件源码

def get(self, sid):
        if not self.is_valid_key(sid):
            return self.new()
        try:
            f = open(self.get_session_filename(sid), 'rb')
        except IOError:
            if self.renew_missing:
                return self.new()
            data = {}
        else:
            try:
                try:
                    data = load(f)
                except Exception:
                    data = {}
            finally:
                f.close()
        return self.session_class(data, sid, False)