[PyQt] PyQt 4.5 crash

Arve Knudsen arve.knudsen at gmail.com
Sun Jun 14 14:41:34 BST 2009

On Sun, Jun 14, 2009 at 3:39 PM, Phil Thompson
<phil at riverbankcomputing.com>wrote:

> On Sun, 14 Jun 2009 13:09:42 +0200, Arve Knudsen <arve.knudsen at gmail.com>
> wrote:
> > Seems like I'm on a roll right now .. I have a case which crashes PyQt
> 4.5
> > under debug-built Python 2.6 on Ubuntu 9.04 x86-64. The attached script
> > contains the case, and backtrace.txt gdb's backtrace output.
> >
> > The case is extracted from a unit test of mine, and I've simply pasted
> code
> > from a mock module which it depends on, so there's a lot of cruft in the
> > file. What matters is the class "Test", and apparently what triggers the
> > crash is its assignment of the variable "_qbase".
> >
> > It is possible that my QMock class confuses PyQt in some way, but I guess
> > it
> > shouldn't crash :)
> It's not crashing, it's an assertion failure.
> It's checking that an attribute with a particular special name is a list
> and failing if not. In your test it is a MockCallable instance instead.
> I could remove the assertion and just silently ignore anything that is an
> unexpected type - but I'm not sure if that breaks your mock object.

OK, thanks for pointing this out. I could try to modify my Mock class to
recognize and ignore special attributes like this.

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