[Twisted-Python] Re: How to get an unused port

[Thomas Hervé]

Quoting Gabriel Rossetti <mailing_lists at evotex.ch>:

>>>> reactor.listenTCP(0, Factory()).getHost().port
> 59768

That's the good thing to use.

> or
>
>>>> reactor.listenTCP(0, Factory())._realPortNumber
> 47315
>
> work :-)

Indeed, but please don't do that. The underscore prefix indicated a  
private member, so this is the kind of thing that can disappear or  
change without warnings. In this case, the previous pattern should do  
the job.

-- 
Thomas