> On Apr 24, 2016, at 12:21 PM, Maciej Wasilak <wasi...@gmail.com> wrote:
>
> Hello,
>
> In my UDP Twisted based library there is a problem with IPv6 addresses
> representation. Addresses are compared as simple strings, and it
> sometimes causes mismatches:
>
> "fe80::aaaa:bbff:fecc:dddd" should be equal to
> "fe80:0000:0000:0000:aaaa:bbff:fecc:dddd"
>
> I've noticed that Python 3 has nice new module "ipaddress" exactly for
> this kind of problems, and it has been backported to Python 2.7.
> Before I add it as a new dependency I wanted to ask if maybe Twisted
> has some other suggested solution for this problem?
You should probably use ipaddress. Twisted's facilities in this area are
somewhat primitive, and should be improved; particularly, you _should_ be able
to do:
a = IPv6Address("UDP", "fe80::", 0)
b = IPv6Address("UDP", "fe80::00:00", 0)
a == b
but right now that doesn't work.
A patch that fixes it would be much appreciated though!
-glyph
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