[CentralOH] Filenames For Pipes?

[jep200404 at columbus.rr.com]

On Mon, 20 Aug 2012 22:24:09 -0400, Neil Ludban <nludban at columbus.rr.com> wrote:

> On Mon, 20 Aug 2012 21:44:35 -0400
> jep200404 at columbus.rr.com wrote:
> > How can I do the following from within Python, without invoking 
> > bash and without creating intermediate files? How can I get a 
> > filename for a pipe or handle?
> > 
> >    diff <(gunzip <old.gz) <(gunzip <new.gz)

> /dev/fd/*

I'm using the following smelly code: 

    fd_name = '/dev/fd/%d' % file.fileno()

There have to be better ways. What are they?