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Code: Alles auswählen

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5.uic import loadUi


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)

        self.exit_button.clicked.connect(self.quit)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    app_window = loadUi("test.ui")
    app_window.show()
    sys.exit(app.exec_())

Code: Alles auswählen

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>481</width>
    <height>329</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QPushButton" name="exitButton">
    <property name="geometry">
     <rect>
      <x>190</x>
      <y>130</y>
      <width>117</width>
      <height>32</height>
     </rect>
    </property>
    <property name="text">
     <string>Exit</string>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>481</width>
     <height>28</height>
    </rect>
   </property>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
 </widget>
 <resources/>
 <connections/>
</ui>

Code: Alles auswählen

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5.uic import loadUi


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.app_window = loadUi("test.ui")
        self.app_window.show()

        self.exit_button.clicked.connect(self.quit, parent=self)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec_())