How to set flags param by custom ?

[iyaozhen]

memcache set:

set <key> <flags> <exptime> <bytes>

but python-memcached set:

def set(self, key, val, time=0, min_compress_len=0, noreply=False)

when val is str flags will be set 0 by _val_to_store_info function.

But other system set flags is 1, I can't exchange data with others.

from https://github.com/memcached/memcached/blob/master/doc/protocol.txt

is an arbitrary 16-bit unsigned integer (written out in
decimal) that the server stores along with the data and sends back
when the item is retrieved. Clients may use this as a bit field to
store data-specific information; this field is opaque to the server.