无法在python中解压缩lz4字节

Question

import redis                                        
import lz4framed                                    
class TestWXRedis(unittest.TestCase):               
    def test_t(self):      
        r=redis.StrictRedis(host=xxx, port=xxxx)                
        result = r.hget("xxxxx","xxxx")                   
        print(result)                               
        print(lz4framed.decompress(result))  

结果输出：

^{pr2}$

错误是：

ERROR: test_t (WXUserCollector.redi.wxredis_test.TestWXRedis)
Traceback (most recent call last):
  File "/home/ymserver/tmp/zengjiwen/wx_public_account/WXUserCollector/redi/wxredis_test.py", line 14, in test_getYmUserInfoByAppidOpenid
    print(lz4framed.decompress(result))
_lz4framed.Lz4FramedError: ('ERROR_frameType_unknown', 13)