[PyQt] SIP/PyQt ABI breakages

[Jeremy Sanders]

Hi - I've been seeing some ABI breakages in PyQt applications (which compile 
against PyQt and SIP) in some Linux packages recently:

e.g., https://bugzilla.redhat.com/show_bug.cgi?id=755355
https://bugs.launchpad.net/ubuntu/+source/pykde4/+bug/826321
http://groups.google.com/group/linux.debian.bugs.dist/browse_thread/thread/e44754a502fd95c0/8c71c436a17dac1f?show_docid=8c71c436a17dac1f

This seemed to happen somewhere between sip 4.12.1 and 4.12.3 or PyQt4-4.8.3 
and PyQt4-4.8.4 (at least for Veusz in Fedora 15).

Was there an explict change where the PyQt4.QtCore module version changed? I 
can't see it in the changelogs. It's unclear to me whether it was a change 
in sip or PyQt that caused the problem.

Is there a better way to deal with breakage when SIP or PyQt4 is updated?

Jeremy

-- 
http://www.jeremysanders.net/