To reproduce, in debian testing with taurus 4.0.0:
Launch taurusdesigner
Traceback (most recent call last): File "/tmp/kkt4/usr/local/lib/python2.7/dist-packages/taurus/qt/qtgui/extra_guiqwt/tools.py", line 264, in items_changed self.activate_command(plot, self.action.isChecked()) RuntimeError: wrapped C/C++ object of type QAction has been deleted Traceback (most recent call last): File "/tmp/kkt4/usr/local/lib/python2.7/dist-packages/taurus/qt/qtgui/extra_guiqwt/tools.py", line 264, in items_changed self.activate_command(plot, self.action.isChecked()) RuntimeError: wrapped C/C++ object of type QAction has been deleted TypeError: unable to convert a Python 'NoneType' object to a C++ 'int' instance
Also WARNINGS:
MainThread WARNING 2016-07-18 17:50:30,503 TaurusRootLogger: Qt: Cannot open file '/home/cpascual/extra_icon:lock_unknown.svg', because: No such file or directory MainThread WARNING 2016-07-18 17:50:30,504 TaurusRootLogger: Qt: Cannot open file '/home/cpascual/extra_icon:lock_unknown.svg', because: No such file or directory