Convert nested Python dict to object?

Question

I\'m searching for an elegant way to get data using attribute access on a dict with some nested dicts and lists (i.e. javascript-style object syntax).

For example:

Answer 1

You can leverage the json module of the standard library with a custom object hook:

import json

class obj(object):
    def __init__(self, dict_):
        self.__dict__.update(dict_)

def dict2obj(d):
    return json.loads(json.dumps(d), object_hook=obj)

Example usage:

>>> d = {'a': 1, 'b': {'c': 2}, 'd': ['hi', {'foo': 'bar'}]}
>>> o = dict2obj(d)
>>> o.a
1
>>> o.b.c
2
>>> o.d[0]
u'hi'
>>> o.d[1].foo
u'bar'

And it is not strictly read-only as it is with namedtuple, i.e. you can change values – not structure:

>>> o.b.c = 3
>>> o.b.c
3