(x)
return x == eui64
Return True if provided address has an interface identifier part
    created in modified EUI-64 format (meaning it matches *::*:*ff:fe*:*). 
    Otherwise, False is returned. Address must be passed in printable
    format.
Return True if provided address has an interface identifier part
    created in modified EUI-64 format (meaning it matches *::*:*ff:fe*:*). 
    Otherwise, False is returned. Address must be passed in printable
    format.
Return True if provided address has an interface identifier part created in modified EUI - 64 format ( meaning it matches * :: * : * ff : fe * : * ) . Otherwise False is returned . Address must be passed in printable format .
def in6_iseui64(x):
    """
    Return True if provided address has an interface identifier part
    created in modified EUI-64 format (meaning it matches *::*:*ff:fe*:*). 
    Otherwise, False is returned. Address must be passed in printable
    format.
    """
    eui64 = inet_pton(socket.AF_INET6, '::ff:fe00:0')
    x = in6_and(inet_pton(socket.AF_INET6, x), eui64)
    return x == eui64
def in6_iseui64 ( x ) : eui64 = inet_pton ( socket . AF_INET6 , '::ff:fe00:0' ) x = in6_and ( inet_pton ( socket . AF_INET6 , x ) , eui64 ) return x == eui64