Starting program: /usr/bin/python3 /usr/share/cadence/src/cadence.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x0000000000557570 in PyType_IsSubtype ()
(gdb) backtrace
#0  0x0000000000557570 in PyType_IsSubtype ()
#1  0x00007ffff4ccdd21 in vp_convertor () from /usr/local/lib/python3.5/dist-packages/sip.so
#2  0x00007ffff4cce5a5 in sip_api_convert_to_void_ptr () from /usr/local/lib/python3.5/dist-packages/sip.so
#3  0x00007ffff62a7b7d in ?? () from /usr/lib/python3/dist-packages/PyQt4/QtCore.cpython-35m-x86_64-linux-gnu.so
#4  0x00007ffff6184b54 in PyInit_QtCore () from /usr/lib/python3/dist-packages/PyQt4/QtCore.cpython-35m-x86_64-linux-gnu.so
#5  0x0000000000604f5e in _PyImport_LoadDynamicModuleWithSpec ()
#6  0x0000000000605518 in ?? ()
#7  0x00000000004e11a6 in PyCFunction_Call ()
#8  0x000000000052a8dd in PyEval_EvalFrameEx ()
#9  0x000000000052cf19 in ?? ()
#10 0x0000000000528f93 in PyEval_EvalFrameEx ()
#11 0x0000000000528464 in PyEval_EvalFrameEx ()
#12 0x0000000000528464 in PyEval_EvalFrameEx ()
#13 0x0000000000528464 in PyEval_EvalFrameEx ()
#14 0x0000000000528464 in PyEval_EvalFrameEx ()
#15 0x000000000052dd1b in PyEval_EvalCodeEx ()
#16 0x00000000004e3153 in ?? ()
#17 0x00000000005b5da7 in PyObject_Call ()
#18 0x00000000005b6c0a in _PyObject_CallMethodIdObjArgs ()
#19 0x000000000051b759 in PyImport_ImportModuleLevelObject ()
#20 0x0000000000542b98 in ?? ()
#21 0x00000000004e1117 in PyCFunction_Call ()
#22 0x00000000005b5da7 in PyObject_Call ()
#23 0x0000000000523480 in PyEval_CallObjectWithKeywords ()
#24 0x0000000000526dc2 in PyEval_EvalFrameEx ()
#25 0x000000000052cf19 in ?? ()
#26 0x000000000052dbcf in PyEval_EvalCode ()
#27 0x0000000000601682 in ?? ()
#28 0x0000000000603b2a in PyRun_FileExFlags ()
#29 0x0000000000603d1c in PyRun_SimpleFileExFlags ()
#30 0x000000000063e756 in Py_Main ()
#31 0x00000000004cfbd1 in main ()