Strange output artifacts in footer of notebook

[fonnesbeck]

Occasionally, I will notice an odd footer appear at the bottom of an iPython notebook with what appears to be a series of x's:

http://cl.ly/1E1V0P03342v341j0w12

Any idea what this is? It has happened in a couple of very different notebook projects. Running 0.13.dev on Python 2.7.1 (OS X 10.7.4).

[Carreau]

Related to the comment i posted on #1883 i think. Used to test the font height to get around a bug.

[ellisonbg]

Hmm, that is the pager area, and it looks like there is a payload of
some sort showing up. This area is written to when you do things like
"foo?".

On Fri, Jun 22, 2012 at 7:53 AM, Chris Fonnesbeck
reply@reply.github.com
wrote:

Occasionally, I will notice an odd footer appear at the bottom of an iPython notebook with what appears to be a series of x's:

http://cl.ly/1E1V0P03342v341j0w12

Any idea what this is? It has happened in a couple of very different notebook projects. Running 0.13.dev on Python 2.7.1 (OS X 10.7.4).

---

Reply to this email directly or view it on GitHub:
#2005

Brian E. Granger
Cal Poly State University, San Luis Obispo
bgranger@calpoly.edu and ellisonbg@gmail.com

[fonnesbeck]

No, just any error does not generate it. The problem is that its so subtle that I don't notice it right away, so I have not been able to pinpoint when it happens. However, running all the cells of a working notebook does not trigger it, so it appears to be related to an exception somehow. I will try keeping a closer eye on it.

[fperez]

@mcelrath, it looks like that Courier New bug is going to haunt us forever... I haven't seen this problem yet, but we should do something about it before the release. Argh...

[mcelrath]

Nah it's a minor problem, please pull #2012 to fix it.

[fperez]

Great, thanks! Will have a look now...

[fperez]

@fonnesbeck, please let us know if the merge of #2012 fixes everything. I reviewed it and the code looked clean, but since the problem doesn't seem to be easy to trigger, I prefer to merge now so we have more testing in the wild.

[fonnesbeck]

I've just pulled the fix, so I will let you know if I see it again. Thanks for the fast action.