Skip to main content
Help us improve PyPI by participating in user testing. All experience levels needed!

CFFI enabled bindings to the CMPH library forcreating and using minimal perfect hashes

Project description

These bindings provide python with the ability to create and use Minimal Perfect Hashes via the CMPH library.


Latest version released on PyPi Build status Coverage Code Health


Installation

Should be as simple as

$ pip install cmph-cffi

Development version

The latest development version can be installed directly from GitHub:

$ pip install --upgrade 'git+https://github.com/URXtech/cmph-cffi'

Usage

Creating a new MPH

import cmph
with open('/usr/share/dict/words', 'w') as keys:
    mph = cmph.generate_hash(keys)

Getting keys out of an MPH

mph('Test')

Warning

Be aware that whilst MPH’s are awesome, they typically cannot distinguish between keys they are built on and unseen keys. Concretely this means that feeding in keys that are not in the original key set will have undefined results

Saving the MPH

with open('/tmp/out.mph', 'w') as out_file:
    mph.save(out_file)

Loading a pre-existing MPH

with open('/tmp/out.mph') as in_file:
    cmph.load_hash(in_file)

Authors

Greg Bowyer (@GregBowyer) and Venkatesh Sharma (@Venkateshks) created these bindings and these fine people did all the hard implementation work in CMPH.

Reporting bugs

Please see BUG_REPORTS.

Contribute

Please see CONTRIBUTING.

Licence

Please see LICENSE.

Project details


Release history Release notifications

This version
History Node

0.3.0

History Node

0.2.0

History Node

0.1.0

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
cmph-cffi-0.3.0.tar.gz (82.7 kB) Copy SHA256 hash SHA256 Source None Mar 25, 2015

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging CloudAMQP CloudAMQP RabbitMQ AWS AWS Cloud computing Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page