[Bug 561303] Re: PyQt4 applications crash at exit

Clint Byrum clint at fewbar.com
Thu Jun 21 20:14:10 UTC 2012


** Description changed:

+ [Test Case]
+ Try any of the basic examples in python-qt4-doc:
+ 
+ jss at jss-laptop:$ python /usr/share/doc/python-qt4-doc/examples/richtext/syntaxhighlighter.py
+ ...
+ Segmentation fault
+ Fixed versions should work properly.
+ 
+ [Regression Potential]
+ While this is an update from upstream, it is a very tiny actual change (view the diff with 'filterdiff -x doc/* -x sip/*'). 
+ 
+ ---------------
+ 
  Binary package hint: python-qt4
  
  Package python-qt4 (python bindings for qt4) seems to be broken in Lucid
  beta 2. Many PyQt4 applications crash at exit, which can be easily
  reproduced by running some of the example applications available in
  package python-qt4-doc. For example, run ' python /usr/share/doc/python-
  qt4-doc/examples/dialogs/findfiles.py'. When the dialog is closed, the
  application dies with segmentation fault.
  
  The python-qt4 version in Lucid beta 2 is  4.7.2-0ubuntu1. The PyQt4
  mailing list has several recent reports about this kind of crashes with
  PyQt4 version 4.7.2, due to some changes in the way objects are deleted
  at exit. The following message on the mailing list indicates that a
  fixed version 4.7.3 is to be released shortly. I hope the fixed version
  will be included in Lucid, or if not possible then revert back to some
  older version that does not crash applications at exit.
  
  http://www.riverbankcomputing.com/pipermail/pyqt/2010-April/026385.html

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https://bugs.launchpad.net/bugs/561303

Title:
  PyQt4 applications crash at exit

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