Today while updating I received:
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...
:: python2-pyqt5 and pyqt5-common are in conflict. Remove pyqt5-common? [y/N] y
:: python2-pyqtwebengine and pyqtwebengine-common are in conflict. Remove pyqtwebengine-common? [y/N] y
I removed both and all seems fine. This must be related to Arch cleaning up python2.
