Public bug reported: this is exactly what happened to me:
http://python.6.x6.nabble.com/Signal-causes-seg-fault-td5207129.html It is quite major! It means you can't create a binding with the property of a base class. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: python-pyqt5 5.5.1+dfsg-3ubuntu4 ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-36-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CurrentDesktop: Unity Date: Wed Mar 14 16:10:18 2018 InstallationDate: Installed on 2018-02-01 (41 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) SourcePackage: pyqt5 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: pyqt5 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1755898 Title: PyQt5 crashes when a signal from a base class is emitted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pyqt5/+bug/1755898/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs