How do I save my bloom filter to a file?

[derrandz]

Is there somehow I can store my full bloom filter to a file and load it again later on to check for new values?

[leopeng1995]

Did you try the Pickle module of Python? The object serialization can achieve your goal.

[joseph-fox]

@HOuaghad @leopeng1995 Pickle is likely to be the good choice for this purpose but there are two ready-to-use methods come along with the package.

sbf = ScalableBloomFilter(mode=ScalableBloomFilter.SMALL_SET_GROWTH)
with open('file_path' ,'w+') as fh:
      sbf.tofile(fh)

with open('/home/joseph/text.txt', 'r') as fh:
      sbf_from_file = ScalableBloomFilter.fromfile(fh)

Always use ScalableBloomFilter.

My branch has tweaked configuration for tightening ration and growth rate.