oset 0.1.3

Ordered Set.

oset

Set that remembers original insertion order.

Runs on Py2.5 or later (and runs on 3.0 or later without any modifications). For Python2.5, a local backport of ABC classes is also used.

Implementation based on a doubly linked link and an internal dictionary. This design gives OrderedSet the same big-Oh running times as regular sets including O(1) adds, removes, and lookups as well as O(n) iteration.

Usage

Import and create ordered set.

>>> from oset import oset
>>> os = oset()

Requires

• Python 2.5+

Changes

Version 0.1

• http://code.activestate.com/recipes/576694-orderedset/

• Raymond Hettinger, 19 Mar 2009

Contributors

• Raymond Hettinger, (All kudos to him :)

• Carlos Martin <[e-mail]>

under the Python Software Foundation License. License =======

Copyright (c) 2009, Raymond Hettinger, and others All rights reserved.

Package structured based on the one developed to odict Copyright (c) 2010, BlueDynamics Alliance, Austria

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