Python implementation of the Ethereum Trie structure
Project description
# Python Implementation of the Ethereum Bloom Filter
`shell $ pip install ethereum-bloom `
## Usage
`python >>> from eth_bloom import BloomFilter >>> b = BloomFilter() >>> b = BloomFilter() >>> b'a value' in b False >>> b.add(b'a value') >>> b'a value' in b True >>> int(b) 3458628712844765018311492773359360516229024449585949240367644166080576879632652362184119765613545163153674691520749911733485693171622325900647078772681584616740134230153806267998022370194756399579977294154062696916779055028045657302214591620589415314367270329881298073237757853875497241510733954508399863880080986777555986663988492288946856978031023631618215522505971170427986911575695114157059398791122395379400594948096 >>> bin(b) '0b100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' `
You can also merge bloom filters
`python >>> from eth_bloom import BloomFilter >>> b1 = BloomFilter() >>> b2 = BloomFilter() >>> b1.add(b'a') >>> b1.add(b'common') >>> b2.add(b'b') >>> b2.add(b'common') >>> b'a' in b1 True >>> b'b' in b1 False >>> b'common' in b1 True >>> b'a' in b2 False >>> b'b' in b2 True >>> b'common' in b2 True >>> b3 = b1 + b2 # using addition >>> b'a' in b3 True >>> b'b' in b3 True >>> b'common' in b3 True >>> b4 = b1 | b2 # or using bitwise or >>> b'a' in b4 True >>> b'b' in b4 True >>> b'common' in b4 True >>> b1 |= b2 # or using in-place operations (works with += too) >>> b'a' in b1 True >>> b'b' in b1 True >>> b'common' in b1 True `
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Hashes for ethereum_bloom-0.3.0-py3-none-any.whl
Algorithm | Hash digest | |
---|---|---|
SHA256 | 4702b15d0aee2474552bdb7962152f4ec2cb336a6b8f414410a63e59ac7e1573 |
|
MD5 | cf308fa4af46a59b12ad70e2a9e44a74 |
|
BLAKE2b-256 | 51d1204ed285adc701b7088b08e6de251348a0548270ed1fef2236e493772c3c |