/usr/bin/python2.7:6:qt_message_output:qt_message:qFatal:QWidgetPrivate::QWidgetPrivate:QFramePrivate::QFramePrivate

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding python2.7. This problem was most recently seen with package version 2.7.12-3build1, the problem page at https://errors.ubuntu.com/problem/668d031fc270628c46c97edfa184c895b672402f contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.

[Matthias Klose (doko)]

this looks more like an issue in an extension module. However the error tracker doesn't show that information, nor does it show any command line arguments