Comment 1 for bug 1951721

Same here. In my case with

$ apt install qreator
(...)
$ python -V
Python 2.7.17
$ python3 -V
Python 3.6.9
$ qreator --version
qreator 16.06.1

I've been able to fix this error, and run qreator, by

--- /usr/share/qreator/qreator/QRCode.py~ 2016-06-13 21:11:25.000000000 +0200
+++ /usr/share/qreator/qreator/QRCode.py 2022-06-13 21:21:25.000000000 +0200
@@ -23,2 +23,2 @@
-import Image
-import ImageOps
+from PIL import Image
+from PIL import ImageOps