Tukukkk

I have two separate files, one that creates a system tray icon and context menu, and another a window to take user input.

traywindow.py contains this:

import sys

import os

from PyQt5 import QtCore, QtWidgets

from PyQt5.QtWidgets import QMainWindow, QWidget, QLabel, QLineEdit

from PyQt5.QtWidgets import QPushButton

from PyQt5.QtCore import QSize    



class MainWindow(QMainWindow):

    def __init__(self):

        QMainWindow.__init__(self)



        self.setMinimumSize(QSize(320, 172))    

        self.setWindowTitle("Set Account") 



        # Setup username field

        self.username_label = QLabel(self)

        self.username_label.setText('Username')

        self.username_field = QLineEdit(self)

        self.username_label.move(45, 20)

        self.username_field.move(115, 23)

        self.username_field.resize(150, 25)



        # Setup OK button

        pybutton = QPushButton('OK', self)

        pybutton.clicked.connect(self.buttonClicked)

        pybutton.resize(100,32)

        pybutton.move(110, 128)        



    def buttonClicked(self):

        print('Username: ' + self.username_field.text())



def displayWindow():

    app = QtWidgets.QApplication(sys.argv)

    preferences_window = MainWindow()

    preferences_window.show()

    sys.exit(app.exec_())



if __name__ == "__main__":

    displayWindow()

Which produces:

trayapp.py contains this:

import os

import sys

import traywindow

from PyQt5 import QtWidgets, QtCore, QtGui



class SystemTrayIcon(QtWidgets.QSystemTrayIcon):



    def __init__(self, icon, parent=None):

        QtWidgets.QSystemTrayIcon.__init__(self, icon, parent)



        menu = QtWidgets.QMenu(parent)

        prefs_action = menu.addAction('Preferences...')

        self.setContextMenu(menu)

        prefs_action.triggered.connect(self.setPrefs)



    def setPrefs(self):

        traywindow.displayWindow()



def main(image):

    app = QtWidgets.QApplication(sys.argv)

    w = QtWidgets.QWidget()

    trayIcon = SystemTrayIcon(QtGui.QIcon(image), w)

    trayIcon.show()

    sys.exit(app.exec_())



if __name__ == '__main__':

    icon = 'icon.png'

    main(icon)

Which produces:

I want to launch the window from my context menu, so when I click on Preferences... it will open the Set Account window, and when I fill in the field and click on OK, capture that into variables/pass those along as arguments in the trayapp.py file. Currently, my attempt in the code above gives me this when I click on Preferences...:

Traceback (most recent call last):

  File "/Users/Username/Downloads/trayapp.py", line 17, in setPrefs

    traywindow.displayWindow()

  File "/Users/Username/Downloads/traywindow.py", line 36, in displayWindow

    sys.exit(app.exec_())

SystemExit: -1

[Finished in 3.0s with exit code -6]

I'm new to PyQt5 and feel like I'm missing something fundamental. From the error I think it's to do with how each file is called at the end to produce its UI, but I haven't found an answer in the docs so far.

You can only have one QApplication and in displayWindow you are creating a second QApplication, instead create a MainWindow and do not call displayWindow.

def setPrefs(self):

    self.window = traywindow.MainWindow()

    self.window.show()