__init__.py 文件源码

def __eq__(self, other):
        '''
        >>> viewabledict({}) == viewabledict({})
        True
        >>> viewabledict({}) != viewabledict({1:1})
        True
        >>> viewabledict({1:1,3:3}) != viewabledict({1:1,2:2})
        True
        >>> viewabledict({1:1,2:2}) + viewabledict({3:3}) == viewabledict({1:1,2:2,3:3})
        True
        >>> viewabledict({}) + viewabledict({3:3}) == viewabledict({3:3})
        True
        '''
        if not isinstance(other, Mapping):
            return False
        return all(a == b for a, b in zip_longest(
            self.iteritems(), other.iteritems(), fillvalue=_NO_VAL))