[PyKDE] Python/pystate.c:441: failed assertion `autoInterpreterState'

Phil Thompson phil at riverbankcomputing.co.uk
Tue Apr 11 07:30:53 BST 2006

On Tuesday 11 April 2006 1:04 am, Patrick Stinson wrote:
> I assume this is fixed, considering the age of the following post, but
> I got it again. What is the likelyhood that this is cause by some
> other c++ extension than PyQt4. (latest snapshots)
> On Monday 05 July 2004 16.54, Phil Thompson wrote:
> > On Monday 05 July 2004 3:09 pm, Fredrik Juhlin wrote:
> > > The only outstanding issue we have right now is a segfault when exiting
> > > the application. Running the app with a debug-compiled python reveals a
> > > "python: Python/pystate.c:423: PyGILState_Ensure: Assertion
> > > `autoInterpreterState' failed.". I'm not sure what could be causing it,
> > > but I'm compiling a PyQt with debugging turned on as I speak, hoping
> > > gdb will give me a clue (despite my feeble C/C++ skills.)
> >
> > This usually happens when C++ is still "running", ie. C++ virtuals and
> > dtors are still being executed after the Python interpreter has been
> > finalised. The sip module is supposed to guard against it, but there may
> > be one place where it's not happening. Can you try the attached patch to
> > see if it makes a difference?
> That fixed it! That took care of our last immediate issue.
> Again, thanks a lot!
> //Fredrik

It shouldn't happen - SIP is aware of the issue and should deal with it 
accordingly. There haven't been changes in this area. But I could be wrong, 
so you need to isolate the problem further.


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