[Twisted-Python] How to get an unused port

Andrew Bennetts andrew-twisted at puzzling.org
Wed Feb 27 04:20:46 EST 2008

Gabriel Rossetti wrote:
> Hello,
> I need to be able to get an unused port for a server, it will then 
> communicate it to a third party.
> I don't have any restrictions other than it shouldn't be a known used port 
> (one used by other apps (above 1023)), but for that I'll probably have to 
> create a list and verify manually. Does anyone know how to do this (without 
> iterating all ports and trying), it must be possible since a client gets 
> the next unused port from the OS, I'd like to do this with Twisted if 
> possible.

Pass 0 as the port number.


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