network_group.py 文件源码

def address_builder(value):
        if isinstance(value, (basestring)):
            try:
                value = IPv4Interface(unicode(value)).network
            except AddressValueError:
                message = 'Unsupported string initialization format \'{}\''
                message = message.format(value)
                raise ValueError(message)
        elif not isinstance(value, IPv4Network):
            raise_type_exception(value, (IPv4Network, ), 'build with')
        return value