Python netaddr 模块，mac_bare() 实例源码

def sendWoL(mac, broadcast=findBroadcast()):
    """Given string mac and broadcast: Turn on computer using WoL
    This was taken from http://code.activestate.com/recipes/358449-wake-on-lan/. Thanks, Fadly!
    """
    # Cleans and removes delimiters from MAC
    try:
        mac = format_mac(EUI(mac), mac_bare)
    except AddrFormatError:
        raise ValueError('Incorrect MAC address format')

    # Pad the synchronization stream.
    data = ''.join(['FFFFFFFFFFFF', mac * 20])
    send_data = b''

    # Split up the hex values and pack.
    for i in range(0, len(data), 2):
        send_data = b''.join([send_data, pack('B', int(data[i: i + 2], 16))])

    # Broadcast it to the LAN.
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    sock.sendto(send_data, (broadcast, 7))

def _bare_query(v):
    v.dialect = netaddr.mac_bare
    return str(v)

def _bare_query(v):
    v.dialect = netaddr.mac_bare
    return str(v)

def _bare_query(v):
    v.dialect = netaddr.mac_bare
    return str(v)

def hwaddr(value, query = '', alias = 'hwaddr'):
    ''' Check if string is a HW/MAC address and filter it '''

    try:
        v = netaddr.EUI(value)
    except:
        if query and query not in [ 'bool' ]:
            raise errors.AnsibleFilterError(alias + ': not a hardware address: %s' % value)

    if not query:
        if v:
            return value

    elif query == 'bool':
        if v:
            return True

    elif query in [ 'win', 'eui48' ]:
        v.dialect = netaddr.mac_eui48
        return str(v)

    elif query == 'unix':
        v.dialect = netaddr.mac_unix
        return str(v)

    elif query in [ 'pgsql', 'postgresql', 'psql' ]:
        v.dialect = netaddr.mac_pgsql
        return str(v)

    elif query == 'cisco':
        v.dialect = netaddr.mac_cisco
        return str(v)

    elif query == 'bare':
        v.dialect = netaddr.mac_bare
        return str(v)

    elif query == 'linux':
        v.dialect = mac_linux
        return str(v)

    else:
        raise errors.AnsibleFilterError(alias + ': unknown filter type: %s' % query)

    return False