attr_dict.py

def dictify(variables):
    # replace all dicts with AttrDicts
    return {key: AttrDict(val) if isinstance(val, dict) else val for key, val in variables.items()}


class AttrDict(dict):
    # only called if k not found in normal places
    def __getattr__(self, k):
        try:
            # Throws exception if not in prototype chain
            return self.return_attr_dict(object.__getattribute__(self, k))
        except AttributeError:
            try:
                return self.return_attr_dict(self[k])
            except KeyError:
                raise AttributeError(k)

    def return_attr_dict(self, val):
        if isinstance(val, dict):
            return AttrDict(val)
        elif isinstance(val, (list, tuple)):
            return type(val)(AttrDict(v) for v in val)
        else:
            return val