Constants

constants.py

#!/usr/bin/env python
# - * - coding: UTF-8 - * -

class Constants(object):
    __slots__ = ['_d']

    def __init__(self, d):
        self._d = d
        for k, v in self._d.items():
            if isinstance(v, dict):
                self._d[k] = type(self)(v)

    def __getattr__(self, name):
        if name not in self._d:
            raise AttributeError(repr(name))
        return self._d[name]

c = Constants({
    'a': {
        'aa': 1,
        'bb': 2
        },
    'b': 3
    })