Qt Designer Kullanımı. You code says selftablewidget2setcolumncount0 which means you have no columns to display in the table. In visual studios solution explorer double click the addressbookui file to open it in qt designer.
In qt designers widgetbox select list widget and drag and drop it to the form to add a qlistwidget. There is a scriptspyqt5 toolsexe designerexe entry point that will help fill out pyqtdesignerpath from either command line arguments or a env file. The pyuic4 utility will take care of it.
Im creating a stylesheet for my entire application unfortunately qt designer has no option to load a stylesheet from resources or specific file.
I thought it would just take up all of the data in the table columns. Qt is partly c and partly native code depending on platform. Qt is easy to learn very well documented see online reference documentation and there are many examples. Qt is a widely used class library for cross platform development of guis.