[IPython-dev] can delete prompts in ipythonqt

Brian Granger ellisonbg@gmail....
Thu Sep 2 19:17:43 CDT 2010


On Thu, Sep 2, 2010 at 5:13 PM, Fernando Perez <fperez.net@gmail.com> wrote:
> On Thu, Sep 2, 2010 at 5:10 PM, Evan Patterson <epatters@enthought.com> wrote:
>> The fundamental issue is that the frontend has no way to tell whether
>> a reply that has not come back from the kernel is a result of the
>> kernel being broken or merely busy--the frontend has no choice but to
>> be silent. Although I've never seen the frontend outright freeze, you
>> can verify that this has not happened by pressing Ctrl-Period.
>>
>> The only way to verify that the kernel is sending the messages is to
>> look at the debug output.
>
> In this case I had an error at the very beginning, and the frontend
> was just frozen, without any messages having been emmitted by the
> kernel yet.  Kind of staring at a blank wall...
>
> But I figured it out by the sheer power of my raw intellect (aka,  I
> stared at the same line of code for 5 minutes until I realized how
> dumb I was).  All good now :)

Debugging like that is a super nice skill to have - not easy though...

Cheers,

Brian

> Cheers,
>
> f
> _______________________________________________
> IPython-dev mailing list
> IPython-dev@scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-dev
>



-- 
Brian E. Granger, Ph.D.
Assistant Professor of Physics
Cal Poly State University, San Luis Obispo
bgranger@calpoly.edu
ellisonbg@gmail.com


More information about the IPython-dev mailing list