How to create a virtual serial port?

[Ned Deily]

In article <BradnfG34JBRan3UnZ2dnUVZ_smdnZ2d at posted.usinternet>,
 Grant Edwards <grante at visi.com> wrote:
> On 2009-04-11, Ned Deily <nad at acm.org> wrote:
> > In article <6LGdnSbyPsL1fX3UnZ2dnUVZ_uqdnZ2d at pdx.net>,
> >  Scott David Daniels <Scott.Daniels at Acm.Org> wrote:
> >> This part I actually understand.  The OP has a program named
> >> "RouteBuddy" that talks to a device over a serial port, and he
> >> want to repalce the data stream coming from that device.  My
> >> question is, "where does the device that he wants to replace
> >> plug in?"  I don't see anywhere on my laptop I could plug in
> >> anything but a USB connector, an ethernet connector, a firewire
> >> connector, headphones, speakers, a display connector, or a
> >> power cord.
> > A number of vendors (Keyspan, Belkin) make USB serial ports.  FWIW, I 
> > use one here on this iMac and OS X with screen(1) and a null modem cable 
> > to act as a serial console for a headless Linux box.
> True, but that doesn't help the OP, where the data is coming
> into the OS-X machine via a network connection.

Also true but I just wanted to use "headless" in a python post.

-- 
 Ned Deily,
 nad at acm.org