主機環境：Ubuntu 13.04
Python版本：2.7.4
轉載請標明：http://blog.geekcome.com/archives/135
1、安裝
1 | sudo pip install pybloomfiltermmap |
或者直接在github獲取最新源代碼，編譯安裝
1 | sudo python setup.py install |
2、使用方法
1 | class pybloomfilter.BloomFilter(capacity : int, error_rate : float, filename : string) |
Create a new BloomFilter object with a given capacity and error_rate. Note that we do not check capacity. This is important, because I want to be able to support logical OR and AND (see below). The capacity and error_rate then together serve as a contract—you add less than capacity items, and the Bloom Filter will have an error rate less than error_rate.
NEW: If you specify None for the filename, then the bloom filter will be backed by malloc’d memory, rather than by a file.
1 | BloomFilter.add(item) → Boolean |
Add the item to the bloom filter.
- item – Hashable object
- Boolean (True if item already in the filter)
