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A dict subclass which remembers insertion order

Project description

A dictionary class remembering insertion order.

Order (i.e. the sequence) of insertions is remembered (internally stored in a hidden list attribute) and replayed when iterating. A StableDict does NOT sort or organize the keys in any other way.

Implemented as a subclass of the built in dict type. Very compact implementation (less than 150 lines of code). Comes with a large test suite derived from Python’s in a separate test module.

Obsoleted since Python 2.7 by collections.OrderedDict (PEP 372).

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