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Package frozenmap provide frozendict (C based) and frozenmap (Cython based)

Project description

frozenmap is MIT Licensed python library. It implements frozendict type (in C) and FrozenDict, FrozenMap classes (in Cython).

  • frozendict is read-only and hashable dictionary (C based).
  • FrozenMap is read-only mapping object wrapped around a mutable mapping object (Cython based).
  • FrozenDict is read-only and hashable dictionary (Cython based).

This library actually is an attempt to proof the concept of fast frozendict (C/Cython based).

Main repository for frozenmap is on bitbucket.

Quick start:

First load inventory:

>>> from frozenmap import frozendict, FrozenDict

Simple example:

>>> fd = frozendict(a=1,b=2,c=3)
>>> fd
frozendict({'a': 1, 'b': 2, 'c': 3})
>>> fd['a']
1
>>> fd['a'] = 10
........
TypeError: 'frozenmap._frozendict.frozendict' object does not support item assignment
>>> del fd['a']
.........
TypeError: 'frozenmap._frozendict.frozendict' object does not support item deletion
>>> fd.pop('a')
.........
AttributeError: 'frozenmap._frozendict.frozendict' object has no attribute 'pop'


>>> fd = FrozenDict(a=1,b=2,c=3)
>>> print(fp)
FrozenDict({'a': 1, 'b': 2, 'c': 3})
>>> fd['a']
1
>>> fd['a'] = 10
........
TypeError: 'frozenmap.frozendict.FrozenDict' object does not support item assignment
>>> del fd['a']
.........
TypeError: 'frozenmap.frozendict.FrozenDict' object does not support item deletion
>>> fd.pop('a')
.........
AttributeError: 'frozenmap.frozendict.FrozenDict' object has no attribute 'pop'

Changes:

** 0.6 **

  • Add C implementation for frozendict.
  • Add tests for frozendict type.

0.5 Initial version

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