IPv6 tests fails if we pass tuple

[getxsick]

TestIPv6AddrField.test_set for this testcase:

check((0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF))

As ignotus mention the problem is that 0xFFFF == 65535 and UMPA handles 65535 as 0x65535 what gives in result 415029

Of course it's wrong.

The buggy code is in IPAddrField._is_valid(), propably line:

i_base = int(i, self.base)

self.base == 16 and so on. But we need it for other cases. More invastigation is needed.