fixup! *: use base64 encodebytes for python3.9

product/ERP5Type/Tool/MemcachedTool.py

@@ -60,7 +60,7 @@ def encodeKey(key):
   """
   # According to the memcached's protocol.txt, the key cannot contain
   # control characters and white spaces.
-  return encodebytes(str2bytes(key), True).replace(b'\n', b'').replace(b'\r', b'')
+  return encodestring(str2bytes(key), True).replace(b'\n', b'').replace(b'\r', b'')
 
 if memcache is not None:
   # Real memcache tool