[PyQt] command require close window

[Krissstian]

What is preventing you from opening the window with new data?

Normally a GUI stays open. You push a button and it draws a plot. Maybe you enter some information, a filename or some numbers, you push the button and the old plot is replaced with a new plot.

It sounds like you have a script. It runs a program to display a plot. When you are done looking at the plot you close the window and the script creates another window that displays a plot. Is that correct?

Yes Dean it's very correct.