redis-hamming-distance

Computes the hamming distance of two redis bitarrys with option masking even if these bitarrays are spread accross multiple hosts.

Install

pip install redishammingdist

Usage

>>from redishammingdist import Rhd
>>import redis
>>conn1 = redis.StrictRedis(
    host='localhost', port=6379, db=0)
>>conn2 = redis.StrictRedis(
    host='localhost', port=6379, db=1)
>>connections = [conn1, conn2]  
>>rc=Rhd(connections)
>>rc.setbit(['k1']*5,[0,1,2,3,4],[1,1,1,0,0])
>>rc.setbit(['k2']*5,[0,1,2,3,4],[0,1,0,1,0])
>>rc.hamming_dist('k1','k2')  
3

You can also use masks to ignore positions. set mask bits to 0 to skip positions. e.g.

>> rc.setbit_mask('k1',0,0)
>> rc.hamming_dist('k1','k2')
2