[PyQt] Evasive TypeError: 'int' object is not callable - hints to cause

[preisig]

Hi,

there are now some hints to why the problem occurs. The problem, not 
necessary error, is in the executive. It signals a excepthook and 
dispatches a message, which may or may not be meaningful, but likely 
not. Search on the net indicates that the problem is in the python 
executive causing a stack problem, probably an overflow.

Probably not much one can do about at least not from the user end.

Interesting to the community may be that the problem is reduced by not 
using the method parentItem() in Qt's graphics system. Once I  passed 
the parent as a parameter, the big bulk of error messages disappeared. 
Current status is that the message only appears in connection with using 
the rubber band. So it is still there, but it has greatly reduced and 
most important of all: the error is not in the user code, except than 
there is something in the choice of the configuration of the graphics 
system or the way the problem is solved.

Cheers,
Heinz Preisig

On 2012-05-03 10:32, Heinz A Preisig wrote:
> Hi,
>
> I have been taking out an old program that I wrote 2 years ago that 
> uses QGraphicsItem in a graph application. I get an error
> TypeError: 'int' object is not callable
> which I cannot localise.
>
> Tried lots of things with the debugger, but do not get anywhere. 
> Cannot isolate or localise the error source.  I also downloaded newest 
> version of pyqt, recompiled and with the tracing switch set.
> Still no results.
>
> Error occurs in various activities related to creating, moving but 
> also when clicking on the graph items. Not on all of them though.
>
> Any ideas on how to go about it? Looks like the error comes from 
> within the pyqt, but experience shows that it is most likely one owns 
> stupidity that is the problem.
>
> Regards
> Heinz Preisig
> -- 
>
>
> Heinz A Preisig
> Professor of Process Systems Engineering 	Private:
> Øvre Bakklandet 62 B, 7013 Trondheim, Norway
> Department of Chemical Engineering
> Norwegian University of Science and Technology
> N -- 7491 Trondheim, Norway 	Tel direct:+47 735 92807
> Tel mob:+47 9754 1334
> e-mail:Heinz.Preisig at chemeng.ntnu.no 
> <mailto:Heinz.Preisig at chemeng.ntnu.no>
> web:www.chemeng.ntnu.no\~preisig <http://www.chemeng.ntnu.no/%7Epreisig>
>
>
>
>
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