Change python2 library pybloomfilter to python3

Question

I want to use pybloomfilter package: https://github.com/axiak/pybloomfiltermmap , I managed to install it under python3, but it seems the saved file does not have the original information (under python2, this won't happen), I looked into source code and it seems there is nothing specific to python2, so I am totally lost on how to make this library compatible with python3.

EDIT1: by "not have the original information", I mean, when I add some string into the filter, then I end the program, the next time, I use open to load the filter, the filter is clear, it does not remember the added strings.

Answer 1

pybloomfiltermmap3 is a Python 3 fork of pybloomfiltermmap by Michael Axiak (@axiak).

class pybloomfilter.BloomFilter(capacity : int, error_rate : float[,
                                filename=None : string ][, perm=0755 ])

Install:

Please have Cython installed. Please note that this version is for Python 3. In case you are using Python 2, please see https://github.com/axiak/pybloomfiltermmap .

To install:

$ pip install cython 
$ pip install pybloomfiltermmap3

to build and install the module.

And there is a instance method to sync the file:

BloomFilter.sync()
  Forces a sync() call on the underlying mmap file object.
  Use this if you are about to copy the file and you want to be Sure (TM)
  you got everything correctly.