def __init__()

in scripts/ValidateParameters/netaddr/eui/__init__.py [0:0]

• 31 lines of code
• 4 McCabe index (conditional complexity)

    def __init__(self, iab, strict=False):
        """
        Constructor

        :param iab: an IAB string ``00-50-C2-XX-X0-00`` or an unsigned \
            integer. This address looks like an EUI-48 but it should not \
            have any non-zero bits in the last 3 bytes.

        :param strict: If True, raises a ValueError if the last 12 bits \
            of IAB MAC/EUI-48 address are non-zero, ignores them otherwise. \
            (Default: False)
        """
        super(IAB, self).__init__()

        #   Lazy loading of IEEE data structures.
        from netaddr.eui import ieee

        self.record = {
            'idx': 0,
            'iab': '',
            'org': '',
            'address': [],
            'offset': 0,
            'size': 0,
        }

        if isinstance(iab, str):
            #TODO: Improve string parsing here.
            #TODO: '00-50-C2' is actually invalid.
            #TODO: Should be '00-50-C2-00-00-00' (i.e. a full MAC/EUI-48)
            int_val = int(iab.replace('-', ''), 16)
            iab_int, user_int = self.split_iab_mac(int_val, strict=strict)
            self._value = iab_int
        elif _is_int(iab):
            iab_int, user_int = self.split_iab_mac(iab, strict=strict)
            self._value = iab_int
        else:
            raise TypeError('unexpected IAB format: %r!' % iab)

        #   Discover offsets.
        if self._value in ieee.IAB_INDEX:
            fh = open(ieee.IAB_REGISTRY_PATH, 'rb')
            (offset, size) = ieee.IAB_INDEX[self._value][0]
            self.record['offset'] = offset
            self.record['size'] = size
            fh.seek(offset)
            data = fh.read(size).decode('UTF-8')
            self._parse_data(data, offset, size)
            fh.close()
        else:
            raise NotRegisteredError('IAB %r not unregistered!' % iab)