Python Data Structure Objectifier

objectify.py

#!/usr/bin/env python
"""
An objectifier for python data structures based on standard containers.

Based on sveral answers to this stackoverflow  question:
    http://stackoverflow.com/q/1305532/116957
Licensed under Creative Commons Attribution-ShareAlike
    http://creativecommons.org/licenses/by-sa/3.0/
"""


class Struct(object):
    def __init__(self, d):
        seqs = tuple, list, set, frozenset
        for k, v in d.iteritems():
            if isinstance(v, dict):
                setattr(self, k, self.__class__(v))
            elif isinstance(v, seqs):
                setattr(self, k, type(v)(self.__class__(sv) if isinstance(sv, dict) else sv for sv in v))
            else:
                setattr(self, k, v)

    def __repr__(self):
        return '{%s}' % str(', '.join('%s : %s' % (k, repr(v)) for (k, v) in self.__dict__.iteritems()))

if __name__ == '__main__':
    s = Struct( {
        'a1' : {
            'a2' : {
                'a3' : 'stuff'
            },
            'b2' : [ 1, 2, {
                'b3' : 'otherstuff'
                }]
        }
    })

    print s

    print s.a1.a2.a3
    print s.a1.b2
    print s.a1.b2[0]
    print s.a1.b2[2]
    print s.a1.b2[2].b3