def __init__()

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

• 26 lines of code
• 12 McCabe index (conditional complexity)

    def __init__(self, addr, version=None, dialect=None):
        """
        Constructor.

        :param addr: an EUI-48 (MAC) or EUI-64 address in string format or \
            an unsigned integer. May also be another EUI object (copy \
            construction).

        :param version: (optional) the explicit EUI address version, either \
            48 or 64. Mainly used to distinguish EUI-48 and EUI-64 identifiers \
            specified as integers which may be numerically equivalent.

        :param dialect: (optional) the mac_* dialect to be used to configure \
            the formatting of EUI-48 (MAC) addresses.
        """
        super(EUI, self).__init__()

        self._module = None

        if isinstance(addr, EUI):
            #   Copy constructor.
            if version is not None and version != addr._module.version:
                raise ValueError('cannot switch EUI versions using '
                    'copy constructor!')
            self._module = addr._module
            self._value = addr._value
            self.dialect = addr.dialect
            return

        if version is not None:
            if version == 48:
                self._module = _eui48
            elif version == 64:
                self._module = _eui64
            else:
                raise ValueError('unsupported EUI version %r' % version)
        else:
        #   Choose a default version when addr is an integer and version is
        #   not specified.
            if _is_int(addr):
                if 0 <= addr <= 0xffffffffffff:
                    self._module = _eui48
                elif 0xffffffffffff < addr <= 0xffffffffffffffff:
                    self._module = _eui64

        self.value = addr

        #   Choose a dialect for MAC formatting.
        self.dialect = dialect