Import def (of class MainWindow) for another file .py

[Logan12]

When I trie import a def, I recieve this output (image). How I can import?

[SGaist]

Hi and welcome to devnet,

From your code, you are not creating a QApplication object before your widget.

[Logan12]

Thank you :) .

I'm noob. Do you can teach how I do this?

[jsulm]

@Logan12 There are many examples and documentation: https://build-system.fman.io/pyqt5-tutorial

[Jaime02]

@Logan12
You are using PyCharm, and it does not always catch the errors. Try doing this:

Check that option and you will see a proper error traceback