My not-so-much informed theory is based on: "PyQt4 and Qt v4 are no longer supported and no new releases will be made. PyQt5 and Qt v5 are strongly recommended for all new development." https://www.riverbankcomputing.com/software/pyqt/intro Might it be that OpenSUSE tries to run this on PyQt4, while `sip` from riverbankcomputing only supports Qt5 any more? I did git clone https://github.com/bit-team/backintime.git and built backintime and backintime-qt4_polkit from source by following the instructions in https://github.com/bit-team/backintime. I did, however, use the current master (1.2.0~alpha, https://github.com/bit-team/backintime/commits/master @ ba37b1e), not the latest (old) release (1.1.24, https://github.com/bit-team/backintime/releases) In any case, the current git master works. I cannot yet tell if there are any regressions (given that master is named "~alpha"...)