I tried to design a very basic GUI app that shows the entered height on a dialog, but after I press the ‘OK’ button on the main window, the whole program crashes and the process finishes with this exit code:
Process finished with exit code -1073740791 (0xC0000409)
Here’s the full code for the app, the UI files are below:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.uic import *
class My_Dialog(QDialog):
def __init__(self):
super(My_Dialog, self).__init__()
loadUi("dialog.ui", self)
self.mid_label.setText(My_Window.mid_label_nexttext)
class My_Window(QMainWindow):
def __init__(self):
super(My_Window, self).__init__()
loadUi("mainwindow.ui", self)
self.mid_label_nexttext = None
self.height_selecter_spinbox.textChanged.connect(lambda x: self.spin_changed(x))
self.pushButton.clicked.connect(self.onMyPushButtonClick)
def onMyPushButtonClick(self):
dlg = My_Dialog()
if dlg.exec_():
print("Success!")
else:
print("Cancel!")
def spin_changed(self, s):
self.mid_label_nexttext = s
self.update()
def main():
app = QApplication(sys.argv)
window = My_Window()
window.show()
app.exec_()
if __name__ == "__main__":
main()
The main window’s UI:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'mainwindow.ui'
#
# Created by: PyQt5 UI code generator 5.15.0
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again. Do not edit this file unless you know what you are doing.
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(513, 171)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(310, 80, 75, 23))
self.pushButton.setObjectName("pushButton")
self.layoutWidget = QtWidgets.QWidget(self.centralwidget)
self.layoutWidget.setGeometry(QtCore.QRect(90, 40, 209, 29))
self.layoutWidget.setObjectName("layoutWidget")
self.layout = QtWidgets.QHBoxLayout(self.layoutWidget)
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.setObjectName("layout")
self.label_firstpart = QtWidgets.QLabel(self.layoutWidget)
font = QtGui.QFont()
font.setPointSize(15)
self.label_firstpart.setFont(font)
self.label_firstpart.setObjectName("label_firstpart")
self.layout.addWidget(self.label_firstpart)
self.height_selecter_spinbox = QtWidgets.QSpinBox(self.layoutWidget)
font = QtGui.QFont()
font.setPointSize(13)
self.height_selecter_spinbox.setFont(font)
self.height_selecter_spinbox.setMinimum(100)
self.height_selecter_spinbox.setMaximum(250)
self.height_selecter_spinbox.setProperty("value", 175)
self.height_selecter_spinbox.setObjectName("height_selecter_spinbox")
self.layout.addWidget(self.height_selecter_spinbox)
self.label_lastpart = QtWidgets.QLabel(self.layoutWidget)
font = QtGui.QFont()
font.setPointSize(15)
self.label_lastpart.setFont(font)
self.label_lastpart.setObjectName("label_lastpart")
self.layout.addWidget(self.label_lastpart)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 513, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.pushButton.setText(_translate("MainWindow", "OK"))
self.label_firstpart.setText(_translate("MainWindow", "My height is "))
self.label_lastpart.setText(_translate("MainWindow", "cm."))
The dialog’s UI:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'dialog.ui'
#
# Created by: PyQt5 UI code generator 5.15.0
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again. Do not edit this file unless you know what you are doing.
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(400, 300)
self.dialog_buttonbox = QtWidgets.QDialogButtonBox(Dialog)
self.dialog_buttonbox.setGeometry(QtCore.QRect(30, 240, 341, 32))
self.dialog_buttonbox.setOrientation(QtCore.Qt.Horizontal)
self.dialog_buttonbox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
self.dialog_buttonbox.setObjectName("dialog_buttonbox")
self.widget = QtWidgets.QWidget(Dialog)
self.widget.setGeometry(QtCore.QRect(80, 90, 151, 41))
self.widget.setObjectName("widget")
self.dialog_layout = QtWidgets.QHBoxLayout(self.widget)
self.dialog_layout.setContentsMargins(0, 0, 0, 0)
self.dialog_layout.setObjectName("dialog_layout")
self.left_label = QtWidgets.QLabel(self.widget)
font = QtGui.QFont()
font.setPointSize(12)
self.left_label.setFont(font)
self.left_label.setObjectName("left_label")
self.dialog_layout.addWidget(self.left_label)
self.mid_label = QtWidgets.QLabel(self.widget)
font = QtGui.QFont()
font.setPointSize(12)
self.mid_label.setFont(font)
self.mid_label.setObjectName("mid_label")
self.dialog_layout.addWidget(self.mid_label)
self.right_label = QtWidgets.QLabel(self.widget)
font = QtGui.QFont()
font.setPointSize(12)
self.right_label.setFont(font)
self.right_label.setObjectName("right_label")
self.dialog_layout.addWidget(self.right_label)
self.retranslateUi(Dialog)
self.dialog_buttonbox.accepted.connect(Dialog.accept)
self.dialog_buttonbox.rejected.connect(Dialog.reject)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
self.left_label.setText(_translate("Dialog", "You are"))
self.mid_label.setText(_translate("Dialog", "100"))
self.right_label.setText(_translate("Dialog", "cm tall."))
I would appreciate some help on how to fix this error.
