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DAWG

https://travis-ci.org/kmike/DAWG.png?branch=master

This package provides DAWG(DAFSA)-based dictionary-like read-only objects for Python (2.x and 3.x).

String data in a DAWG may take 200x less memory than in a standard Python dict and the raw lookup speed is comparable; it also provides fast advanced methods like prefix search.

Docs: http://dawg.readthedocs.org

Source code:

Issue tracker: https://github.com/kmike/DAWG/issues

License

Wrapper code is licensed under MIT License. Bundled dawgdic C++ library is licensed under BSD license. Bundled libb64 is Public Domain.

Changes

0.7 (2013-04-05)

  • IntCompletionDAWG

0.6.1 (2013-03-23)

  • Installation issues in environments with LC_ALL=C are fixed;

  • PyPy is officially unsupported now (use DAWG-Python with PyPy).

0.6 (2013-03-22)

  • many thread-safety bugs are fixed (at the cost of slowing library down).

0.5.5 (2013-02-19)

  • fix installation under PyPy (note: DAWG is slow under PyPy and may have bugs).

0.5.4 (2013-02-14)

  • small tweaks for docstrings;

  • the extension is rebuilt using Cython 0.18.

0.5.3 (2013-01-03)

  • small improvements to .compile_replaces method;

  • benchmarks for .similar_items method;

  • the extension is rebuilt with Cython pre-0.18; this made .prefixes and .iterprefixes methods faster (up to 6x in some cases).

0.5.2 (2013-01-02)

  • tests are included in source distribution;

  • benchmark results in README was nonrepresentative because of my broken (slow) Python 3.2 install;

  • installation is fixed under Python 3.x with LC_ALL=C (thanks Jakub Wilk).

0.5.1 (2012-10-11)

  • better error reporting while building DAWGs;

  • __contains__ is fixed for keys with zero bytes;

  • dawg.Error exception class;

  • building of BytesDAWG and RecordDAWG fails instead of producing incorrect results if some of the keys has unsupported characters.

0.5 (2012-10-08)

The storage scheme of BytesDAWG and RecordDAWG is changed in this release in order to provide the alphabetical ordering of items.

This is a backwards-incompatible release. In order to read BytesDAWG or RecordDAWG created with previous versions of DAWG use payload_separator constructor argument:

>>> BytesDAWG(payload_separator=b'\xff').load('old.dawg')

0.4.1 (2012-10-01)

  • Segfaults with empty DAWGs are fixed by updating dawgdic to latest svn.

0.4 (2012-09-26)

  • iterkeys, iteritems and iterprefixes methods (thanks Dan Blanchard).

0.3.2 (2012-09-24)

  • prefixes method for finding all prefixes of a given key.

0.3.1 (2012-09-20)

  • bundled dawgdic C++ library is updated to the latest version.

0.3 (2012-09-13)

  • similar_keys, similar_items and similar_item_values methods for more permissive lookups (they may be useful e.g. for umlaut handling);

  • load method returns self;

  • Python 3.3 support.

0.2 (2012-09-08)

Greatly improved memory usage for DAWGs loaded with load method.

There is currently a bug somewhere in a wrapper so DAWGs loaded with read() method or unpickled DAWGs uses 3x-4x memory compared to DAWGs loaded with load() method. load() is fixed in this release but other methods are not.

0.1 (2012-09-08)

Initial release.

Metadata

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0.8.0

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