[IPython-User] carriage return in ipython notebook?

MinRK benjaminrk@gmail....
Mon Apr 9 17:24:59 CDT 2012

On Mon, Apr 9, 2012 at 14:46, mqk <kuhlen@gmail.com> wrote:

> Hi MinRK
> Thanks for your response. I did come across your working example, but I
> don't like it. :) The repeated clearing of the output results in a
> strobe-like appearance for me, and of course it also erases any previous
> output that is unrelated to the progress bar. Oh well.

The strobe complaint is common, and actually fixed in an outstanding
 You can selectively clear stdout/stderr/pyout, but not subsets of each of
those.  That said, if you want the notebook to be a terminal emulator, you
don't actually want the notebook.  For instance, a more natural progress
bar for the notebook would just be written in Javascript.

Here's one I just wrote based on a quick Googling of 'javascript progress
bar' since receiving your email:

import uuid
from IPython.core.display import HTML, Javascript, display

divid = str(uuid.uuid4())

<div style="border: 1px solid black; width:500px">
  <div id="%s" style="background-color:blue; width:0%%">&nbsp;</div>
""" % divid)

for i in range(1,101):
    display(Javascript("$('div#%s').width('%i%%')" % (divid, i)))

It does require using my `clear_output` branch, pending as PR
to avoid some ugliness.


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