[Eric] Re: Eric4 help viewer causes pythonw.exe crash

[Jaime Seuma]

Hi

I've tried to debug eric4 in this regard. I've used eric4 for that
debugging task, of course ;-)

So far, I found that the 'linkActivated' signal, which is emitted in
response to events happening in many areas of the HelpWindow, make
Python crash:
- HelpTocWidget.py, line 120:
    self.emit(SIGNAL("linkActivated(const QUrl&)"), itm.url())
- HelpIndexWidget. Double-clicking an item fires the Python crash
- HelpSearchWidget. Double-clicking an item fires the Python crash

First of all, it is a Python crash, not an eric4 crash.
I'm using windows XP, and it shows a dialog explaining that pythonw made
an illegal operation with qtnetwork4.dll.

Wrapping the fore mentioned code (HelpTocWidget.py, line 120) with a
try/catch block doesn't help; no Python exception is catched.

I don't think that this python crash is caused by any of the eric4 code.
I rather think that some version jam must be behind these crashes.
I updated versions of most of the stuff involved with eric4 some weeks
ago, but I've kept some of the older versions (python25, qt 4.4.0); and
I believe that something must be misconfigured.
Or that some dll mistakenly went to the %WINDIR%, or that some env
variable must be corrected...

Regards

Detlev wrote:

Hi Jaime, I tried it on my Windows installation and cannot reproduce the
problem. Can you try to debug it? The only difference in version I can
spot is sip. I have 4.7.8 installed. Regards, Detlev On Dienstag, 21.
April 2009, Jaime Seuma wrote:

> > In my desktop, the next secuence of actions causes pythonw.exe to crash,
> > with the typical windows dialog of 'send report to microsoft':
> > eric4 help->Qt4 Documentation.
> > In the viewer, in the search textbox type something (for instance, QtCore)
> > Then, in the results listbox, double click something (for instance,
> > 'QtCore module')
> >
> > At this point pythonw.exe crashes. The process will remain active
> > (killable from the task manager) and using a lot of cpu (>50%).
> >
> > My version numbers:
> > Python 2.6.1
> > Qt 4.5.0 (Nokia release Jan09)
> > PyQt 4.4.4
> > sip 4.7.9
> > QScintilla 2.3.2
> > eric4 4.4-snapshot-20090419 (r3045)
> >
> > I guess it would have something to do with some of this sw versions(?)
> > therefore I don't think it is much of a critical issue.
> >
> > Cheers
> >
> > Jaime
> >
>