untitled_8jc.tmp

class ConfigDict(dict):
    ''' A dict-subclass with some extras: You can access keys like attributes.
        Uppercase attributes create new ConfigDicts and act as name-spaces.
        Other missing attributes return None. Calling a ConfigDict updates its
        values and returns itself.

        >>> cfg = ConfigDict()
        >>> cfg.Namespace.value = 5
        >>> cfg.OtherNamespace(a=1, b=2)
        >>> cfg
        {'Namespace': {'value': 5}, 'OtherNamespace': {'a': 1, 'b': 2}}
    '''

    def __getattr__(self, key):
        if key not in self and key[0].isupper():
            self[key] = ConfigDict()
        return self.get(key)

    def __setattr__(self, key, value):
        if hasattr(dict, key):
            raise AttributeError('Read-only attribute.')
        if key in self and self[key] and isinstance(self[key], ConfigDict):
            raise AttributeError('Non-empty namespace attribute.')
        self[key] = value

    def __delattr__(self, key):
        if key in self: del self[key]

    def __call__(self, *a, **ka):
        for key, value in dict(*a, **ka).items(): setattr(self, key, value)
        return self