pfutil 1.0.1

Fast and Redis-compatible HyperLogLog extension for Python 3

pfutil

Fast HyperLogLog extension for Python 3. The underlying binary representation is compatible with Redis.

#!python3
import redis
from pfutil import HyperLogLog

r = redis.Redis()
r.pfadd('foo', 'a', 'b', 'c')
r.pfadd('bar', 'x', 'y', 'z')
r.pfmerge('bar', 'foo')
assert r.pfcount('foo') == 3
assert r.pfcount('bar') == 6

foo = HyperLogLog.from_bytes(r.get('foo'))
bar = HyperLogLog.from_elements('x', 'y')
bar.pfadd('z')
bar.pfmerge(foo)
assert foo.pfcount() == 3
assert bar.pfcount() == 6
assert r.get('bar') == bar.to_bytes()

Install

Install from PyPI:

pip install pfutil

Install from source:

python setup.py install

License

• This pfutil software is released under the 3-Clause BSD License
• The files in src/redis/ are extracted and modified from Redis 6.2.12, which is released under the 3-Clause BSD License as well.