Bug#875202: [taurus] Future Qt4 removal from Buster

[Gudjon I. Gudjonsson]

Hi

There is a new package in Debian 
https://tracker.debian.org/pkg/pyqt-qwt

that builds on the Qt5 version of Qwt6. 
It should not be difficult to upgrade the package from
PyQwt5 to PyQt-Qwt.

Regards
Gudjon