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Project Description

mmh3

Python wrapper for MurmurHash (MurmurHash3), a set of fast and robust hash functions.

mmh3 2.3.1 supports both Python 2.7 and 3.x.

Usage

Sample Usage:

>>> import mmh3
>>> mmh3.hash('foo') # 32 bit signed int
-156908512
>>> mmh3.hash64('foo') # two 64 bit signed ints
(-2129773440516405919, 9128664383759220103)
>>> mmh3.hash128('foo') # 128 bit signed int
168394135621993849475852668931176482145
>>> mmh3.hash_bytes('foo') # 128 bit value as bytes
'aE\xf5\x01W\x86q\xe2\x87}\xba+\xe4\x87\xaf~'
>>> mmh3.hash('foo', 42) # uses 42 for its seed
-1322301282

hash64, hash128, and hash_bytes have the third argument for architecture optimization. Use True for x64 and False for x86 (default: True).:

>>> mmh3.hash64('foo', 42, True)
(-840311307571801102, -6739155424061121879)

Changes

2.3.1 (2015-06-07)

  • Fix compile errors for gcc >=5.

2.3 (2013-12-08)

  • Add hash128, which returns a 128-bit signed integer.
  • Fix a misplaced operator which could cause memory leak in a rare condition.
  • Fix a malformed value to a Python/C API function which may cause runtime errors in recent Python 3.x versions.

The first two commits are from Derek Wilson. Thanks!

2.2 (2013-03-03)

  • Improve portability to support systems with old gcc (version < 4.4) such as CentOS/RHEL 5.x. (Commit from Micha Gorelick. Thanks!)

2.1 (2013-02-25)

  • Add __version__ constant. Check if it exists when the following revision matters for your application.
  • Incorporate the revision r147, which includes robustness improvement and minor tweaks.

Beware that due to this revision, the result of 32-bit version of 2.1 is NOT the same as that of 2.0. E.g.,:

>>> mmh3.hash('foo') # in mmh3 2.0
-292180858
>>> mmh3.hash('foo') # in mmh3 2.1
-156908512

The results of hash64 and hash_bytes remain unchanged. Austin Appleby, the author of Murmurhash, ensured this revision was the final modification to MurmurHash3’s results and any future changes would be to improve performance only.

License

Public Domain

except: the .gitignore file was copied from https://github.com/github/gitignore/blob/master/Python.gitignore and is copyrighted Copyright (c) 2013 GitHub, Inc. under the MIT license. See the header of .gitignore.

Authors

MurmurHash3 was created by Austin Appleby

Modified by Hajime Senuma

Release History

Release History

2.3.1

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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2.3

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2.2

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2.0

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TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
mmh3-2.3.1.tar.gz (6.1 kB) Copy SHA256 Checksum SHA256 Source Jun 7, 2015

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