----- Original Message -----
> From: "Phil Mayers" <p.may...@imperial.ac.uk>
> To: twisted-python@twistedmatrix.com
> Sent: Friday, December 13, 2013 8:41:44 PM
> Subject: Re: [Twisted-Python] Reliable way to check if Twisted has IPv6
> support?
>
> On 13/12/13 03:22, Amit Saha wrote:
>
> > Is there a more reliable way (which works with the Twisted-8.0+) to check
> > this?
>
> Check the Twisted version.
>
> You should also note that IPv6 features have appeared in multiple
> versions; HostnameEndpoint was added in 13.2.0 for example, whereas
> basic "connectTCP to IPv6 address" was added in 12.1.0, with listenTCP
> in 12.0.0
>
> So:
>
> import twisted
>
> vt = (twisted.version.major, twisted.version.minor)
>
> if vt > (13,2):
> def connectv6name(n):
> return HostnameEndpoint(...)
> elif vt > (12,1):
> def connectv6name(n):
> d = myGetAddrInfo(...)
> d.addCallback(reactor.connectTCP, ...)
> else:
> def connectv6name(n):
> raise Exception('twisted too old for IPv6')
Thanks a lot, Phil. I think using the version information is a more reliable
way. I had a feeling
that the various bits and pieces may have been added incrementally. The
functionality I need
present are listenTCP() and connectTCP() to work with IPv6, so I think checking
for 12.1.0
will suit my needs.
Best,
Amit.
--
Amit Saha <http://echorand.me>
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