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print, sys.stdout & % complete HELP

bragib at my-deja.com bragib at my-deja.com
Wed May 24 16:30:01 EDT 2000 
Thanks Greg... Works like a charm.... :)

Bragi

p.s. Andy please share the warn stuff with us if you write it up.






In article <392BE18F.D5F21F27 at earthlink.net>,
  greg Landrum <greglandrum at earthlink.net> wrote:
> bragib at my-deja.com wrote:
> >
> > Hi:
> >
> > I am trying to print a status message to a terminal window which
tells
> > the user percent complete.
> >
> > This is the way I went about it in pseudo terms
> >
> > def percentComplete(lineNo, lines, fileName):
> >     msg = 'Scanning file %s, %i%s complete.'
> >     percentComplete = int(round(100*lineNo/lines))
> >     if divmod(percentComplete, 5)[1]:  # every 5%
> >         backspace = '\b'*len(oldStatus)
> >         msg = backspace + msg %(fileName, percentComplete, '%')
> >         print msg,
> >         oldStatus = msg
> >
> > Now I have the problem as follows:
> > prompt>Scanning file longLongLongName.fil, 100% complete.
> >
> > Then when I start scanning a file witha shorter name I
> > get
> > prompt>Scanning file short.fil, 20% complete. ete.  <--- Oops
something
> > did not get erased.
>
> I could not get things to work properly with print (I assume this is
due
> to buffering problems) under kdeterm, but the following works just
fine
> for me:
>
> for i in xrange(100):
>     sys.stdout.write('\rDoing %d'%i)
>     sys.stdout.flush()
>     time.sleep(.1)
>
> -greg
>
> --
>
> greg Landrum (greglandrum at earthlink.net)
> Software Carpenter/Computational Chemist
>



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