I have a problem with PyQt5 and QPrinter which seems to be related
to PyQt 5.11.3 or Qt 5.12. I’m running Manjaro Linux with python
3.7.2, pyqt5-common 5.11.3, python-pyqt5 5.11.3 and Qt5 at v5.12.0.
I have a program which printed directly to a pdf-file in portrait-
or landscape-orientation using QPrinter. Everything worked perfectly
with PyQt5 v5.11.2 and Qt5 v5.11.
But now, whitout any code-changes, I always get documents in format
"us-letter" in portrait-orientation.