Unix Device File Emulation

[blaine]

On Apr 23, 2:01 pm, "Martin Blume" <mbl... at freesurf.ch> wrote:
> "blaine" schrieb
>
>
>
> > > while 1:
> > >  r = self.fifodev.readline()
> > >  if r: print r
>
> > > According to my docs, readline() returns an empty
> > > string at the end of the file.
> > > Also, you might want to sleep() between reads a
> > > little bit.
>
> > Oh ok, that makes sense.  Hmm.  So do I not want to use
> > readline()? Or is there a way to do something like
> > 'block until the file is not empty'?
>
> No,
>   while 1:
>       r = self.fifodev.readline()
>       if r: print r
>       else: time.sleep(0.1)
> is ok (note the "if r:" clause).
>
> Martin

Beautiful! Thanks Martin!