(str)
return in6_isincluded(str, '2001:db8::', 32)
Returns True if provided address in printable format belongs to
    2001:db8::/32 address space reserved for documentation (as defined 
    in RFC 3849).
Returns True if provided address in printable format belongs to
    2001:db8::/32 address space reserved for documentation (as defined 
    in RFC 3849).
Returns True if provided address in printable format belongs to 2001 : db8 :: / 32 address space reserved for documentation ( as defined in RFC 3849 ) .
def in6_isdocaddr(str):
    """
    Returns True if provided address in printable format belongs to
    2001:db8::/32 address space reserved for documentation (as defined 
    in RFC 3849).
    """
    return in6_isincluded(str, '2001:db8::', 32)
def in6_isdocaddr ( str ) : return in6_isincluded ( str , '2001:db8::' , 32 )