Calling dialog window from main window

  • I used Qt5 Designer to create a MainWindow object. One of the menu items calls a dialog window, so I created another (dialog) window in Qt5 Designer, which had to be saved to a separate .ui file. I could not find in Qt5 Designer how to set up an action invoking this dialog window from the main window, so I'm trying to code this by hand. Then I used pyuic5 to convert the Designer code to Python code. Both Python files have two methods:
    setupUi and retranslateUi . Here's how I'm trying to invoke this dialog in the file containing the MainWindow :


    But I'm getting the following error:

    TypeError: retranslateUi() missing 1 required positional argument: 'addEmail'
    Abort trap: 6

    Can someone please help me with this? Also, I would appreciate if someone could tell if there is a way in Qt Designer to set up events like this.

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