https://github.com/krishnasun82/Bloom-Filter

Python bloom filter implementation extended over ActiveState recipe by Raymond Hettinger here: http://bit.ly/bloom_filter. Tested in CPython-2.7.
https://github.com/krishnasun82/Bloom-Filter

Last synced: 3 months ago
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Python bloom filter implementation extended over ActiveState recipe by Raymond Hettinger here: http://bit.ly/bloom_filter. Tested in CPython-2.7.

• Host: GitHub
• URL: https://github.com/krishnasun82/Bloom-Filter
• Owner: krishnasun82
• Created: 2011-05-05T07:46:14.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2011-05-05T08:44:00.000Z (over 13 years ago)
• Last Synced: 2024-07-19T22:48:05.258Z (4 months ago)
• Homepage: http://sunnyeves.blogspot.com/
• Size: 93.8 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README

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README

        
Bloom filter code expanded over the recipe posted by Raymond Hettinger in ActiveState site: http://bit.ly/bloom_filter.

It requires the number of bits, number of probes, and a yielding hash function as shown in my fork of the recipe: http://code.activestate.com/recipes/577686/ (reproduced here for convenience)

def get_probes(bfilter, key):

    hasher = Random(key).randrange

    for _ in range(bfilter.num_probes):

        array_index = hasher(len(bfilter.arr))

        bit_index = hasher(32)

        yield array_index, 1 << bit_index