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Multi key dictionary implementation

Project description

Implementation of a multi-key dictionary, i.e.:

(key1[,key2, ..]) => value

This dictionary has a similar interface to the standard dictionary => but is extended to support multiple keys referring to the same element.

If element is created using multiple keys, e.g.:

from multi_key_dict import multi_key_dict

k = multi_key_dict()
k[1000, 'kilo', 'k'] = 'kilo (x1000)'

print k[1000] # will print 'kilo (x1000)'
print k['k'] # will also print 'kilo (x1000)'

# the same way objects can be updated, deleted:
# and if an object is updated using one key, the new value will
# be accessible using any other key, e.g. for example above:
k['kilo'] = 'kilo'
print k[1000] # will now print 'kilo' as value was updated

These elements can be accessed using either of those keys (e.g for read/update/deletion).

Multi-key dict provides also extended interface for iterating over items and keys (e.g. by the key type), which might be useful when creating, e.g. dictionaries with index-name key pair allowing to iterate over items using either: names or indexes. It can be useful for many many other similar use-cases, and there is no limit to the number of keys used to map to the value.

There are few other useful methods, e.g. to iterate over dictionary (by/using) selected key type, finding other keys mapping to the same value etc. Refer to example/test code to see it in action.

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multi_key_dict-2.0.3.tar.gz (8.4 kB) Copy SHA256 hash SHA256 Source None Sep 20, 2015
multi_key_dict-2.0.3.win32.exe (206.7 kB) Copy SHA256 hash SHA256 Windows Installer any Sep 20, 2015 (146.8 kB) Copy SHA256 hash SHA256 Windows Installer any Sep 20, 2015 (9.9 kB) Copy SHA256 hash SHA256 Source None Sep 20, 2015

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