Going back from new window to main window

Going back from new window to main window - python

I have 2 windows, MainScreen and AddFW.
Whenever I go from MainScreen -> AddFW, it works (the MainScreen hides and the AddFW appears).
But when I try going back from AddFW to MainScreen, the window crashes and I get an error: "NameError: name 'AddFW' is not defined".
What am I doing wrong?
MainScreen.py
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QMainWindow, QLineEdit, QPushButton
from PyQt5 import *
from PyQt5 import QtGui
from AddFW import *
import pyodbc
server = '**'
database = '**'
username = '**'
password = '**'
conn = pyodbc.connect('DRIVER={**};'
'SERVER=' + server + ';'
'DATABASE=' + database + ';'
'UID=' + username + ';'
'PWD=' + password)
class Ui_MainWindow(object):
def OpenAddFW(self):
self.window = QtWidgets.QMainWindow()
self.ui = Ui_AddFW()
self.ui.setupUi(self.window)
self.window.show()
MainWindow.hide()
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1000, 600)
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 0, 127))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 0, 127))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(120, 120, 120))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush)
MainWindow.setPalette(palette)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(410, 40, 201, 41))
font = QtGui.QFont()
font.setFamily("Imprint MT Shadow")
font.setPointSize(27)
font.setBold(False)
font.setUnderline(True)
font.setWeight(50)
self.label.setFont(font)
self.label.setObjectName("label")
self.InsertResultsBtn = QtWidgets.QPushButton(self.centralwidget)
self.InsertResultsBtn.setGeometry(QtCore.QRect(58, 226, 160, 130))
font = QtGui.QFont()
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.InsertResultsBtn.setFont(font)
self.InsertResultsBtn.setObjectName("InsertResultsBtn")
self.SearchResultsBtn = QtWidgets.QPushButton(self.centralwidget)
self.SearchResultsBtn.setGeometry(QtCore.QRect(300, 226, 160, 130))
font = QtGui.QFont()
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.SearchResultsBtn.setFont(font)
self.SearchResultsBtn.setObjectName("SearchResultsBtn")
self.CompareResultsBtn = QtWidgets.QPushButton(self.centralwidget)
self.CompareResultsBtn.setGeometry(QtCore.QRect(541, 226, 160, 130))
font = QtGui.QFont()
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.CompareResultsBtn.setFont(font)
self.CompareResultsBtn.setObjectName("CompareResultsBtn")
self.AddFWBtn = QtWidgets.QPushButton(self.centralwidget)
self.AddFWBtn.setGeometry(QtCore.QRect(783, 226, 160, 130))
font = QtGui.QFont()
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.AddFWBtn.setFont(font)
self.AddFWBtn.setObjectName("AddFWBtn")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setEnabled(True)
self.label_2.setGeometry(QtCore.QRect(420, 540, 181, 16))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 0, 127))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 0, 127))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(120, 120, 120))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush)
self.label_2.setPalette(palette)
self.label_2.setObjectName("label_2")
MainWindow.setCentralWidget(self.centralwidget)
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.label.setText(_translate("MainWindow", "TestTrack"))
self.InsertResultsBtn.setText(_translate("MainWindow", "Insert Results"))
self.SearchResultsBtn.setText(_translate("MainWindow", "Search Results"))
self.CompareResultsBtn.setText(_translate("MainWindow", "Compare Results"))
self.AddFWBtn.setText(_translate("MainWindow", "Add Firmware"))
self.label_2.setText(_translate("MainWindow", "George Hanna & Nadav Benun"))
self.AddFWBtn.clicked.connect(self.OpenAddFW)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
AddFW
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QMainWindow, QLineEdit
from PyQt5 import *
from PyQt5 import QtGui
from MainScreen import *
import pyodbc
server = '**'
database = '**'
username = '**'
password = '**'
conn = pyodbc.connect('DRIVER={**};'
'SERVER=' + server + ';'
'DATABASE=' + database + ';'
'UID=' + username + ';'
'PWD=' + password)
def create(conn2, AddToDataBase):
cursor = conn2.cursor()
cursor.execute('insert into dbo.Firmware(Firmware) values(?);', AddToDataBase)
conn2.commit()
print('Added!')
class Ui_AddFW(object):
def AddFWFunc(self):
create(conn, self.FirmwareInsert.text())
def BackToMain(self):
self.window = QtWidgets.QMainWindow()
self.ui = Ui_MainWindow()
self.ui.setupUi(self.window)
self.window.show()
AddFW.hide()
def setupUi(self, AddFW):
AddFW.setObjectName("AddFW")
AddFW.resize(1000, 600)
self.centralwidget = QtWidgets.QWidget(AddFW)
self.centralwidget.setObjectName("centralwidget")
self.AddFWButton = QtWidgets.QPushButton(self.centralwidget)
self.AddFWButton.setGeometry(QtCore.QRect(470, 260, 121, 28))
self.AddFWButton.setObjectName("AddFWButton")
self.Back = QtWidgets.QPushButton(self.centralwidget)
self.Back.setGeometry(QtCore.QRect(40, 40, 51, 28))
self.Back.setObjectName("Back")
self.FirmwareLabel = QtWidgets.QLabel(self.centralwidget)
self.FirmwareLabel.setGeometry(QtCore.QRect(320, 170, 60, 16))
self.FirmwareLabel.setObjectName("FirmwareLabel")
self.Title = QtWidgets.QLabel(self.centralwidget)
self.Title.setGeometry(QtCore.QRect(370, 50, 321, 16))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.Title.setFont(font)
self.Title.setObjectName("Title")
self.FirmwareInsert = QtWidgets.QLineEdit(self.centralwidget)
self.FirmwareInsert.setGeometry(QtCore.QRect(400, 160, 281, 31))
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.FirmwareInsert.sizePolicy().hasHeightForWidth())
self.FirmwareInsert.setSizePolicy(sizePolicy)
self.FirmwareInsert.setObjectName("FirmwareInsert")
AddFW.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(AddFW)
self.statusbar.setObjectName("statusbar")
AddFW.setStatusBar(self.statusbar)
self.retranslateUi(AddFW)
QtCore.QMetaObject.connectSlotsByName(AddFW)
def retranslateUi(self, AddFW):
_translate = QtCore.QCoreApplication.translate
AddFW.setWindowTitle(_translate("AddFW", "MainWindow"))
self.AddFWButton.setText(_translate("AddFW", "Insert to DataBase"))
self.Back.setText(_translate("AddFW", "Back"))
self.FirmwareLabel.setText(_translate("AddFW", "Firmware:"))
self.Title.setText(_translate("AddFW", "Add Firmware to the DataBase"))
self.AddFWButton.clicked.connect(self.AddFWFunc)
self.Back.clicked.connect(self.BackToMain)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
AddFW = QtWidgets.QMainWindow()
ui = Ui_AddFW()
ui.setupUi(AddFW)
AddFW.show()
sys.exit(app.exec_())

This happens because Add_FW exists only within the setupUi and retranslateUi methods. It works in MainWindow because you are declaring it below in
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow() <- HERE
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
One quick fix is to pass the AddFW object through connect this way :
self.Back.clicked.connect(lambda: self.BackToMain(AddFW))
But a better way to deal with this would be to inherit QMainWindow in both Ui_AddFW and Ui_MainWindow class due to which they both become an instance of QMainWindow and you wont have to pass the QMainWindow when you are instantiating it.
Check this out: PyQt class inheritance
Finally,
Instead of showing and hiding screens within each object, I would suggest creating a main.py and handle the show/hide logic there this way:
main.py
from AddFW import Ui_AddFW
from MainScreen import Ui_MainWindow
def handle_back_to_main():
add_fw.hide()
main_screen.show()
def handle_back_to_add_fw():
main_screen.hide()
add_fw.show()
add_fw = Ui_AddFW()
main_screen = Ui_MainWindow()
add_fw.Back.clicked.connect(handle_back_to_main)
main_screen.AddFWBtn.clicked.connect(handle_back_to_add_fw)

Related

Pushbutton on second Dialog window does not work

I have created two Windows in QT designer. The first one has two pushButtons, each one calls the Dialog window. I am just starting to write the code for this but I could not go further when I tested the pushbutton on the dialog window. I have just connected to a function which calls print ("test."), Just to see the PB works, but it doesn't work.what I am missing?
See the main code below:
from PyQt5 import QtWidgets
from Main_VIEW import Ui_MainWindow # this is the main window
from Dialog_sa import Ui_Dialog # dialog window
from Test4 import currentAccount,savingAccount # this has all functions and calculations
import sys
class ApplicationWindow(QtWidgets.QMainWindow,Ui_MainWindow,Ui_Dialog,QtWidgets.QDialog):
def __init__(self):
super(ApplicationWindow, self).__init__()
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
#self.diag_ui = Ui_Dialog()
#self.diag_ui.setupUi(self)
self.ui.pb_ca.clicked.connect(self.open_dialog_ca)
def open_dialog_ca(self):
#global dialog
dialog = QtWidgets.QDialog()
dialog.ui = Ui_Dialog()
dialog.ui.setupUi(dialog)
dialog.exec_()
dialog.show()
account = currentAccount()
dialog.value_str = dialog.ui.le_b.text()
dialog.ui.pb_d.clicked.connect(self.print_sel) # this is the line of code that doesn't work
def print_sel(self):
print("this app")
def main():
app = QtWidgets.QApplication(sys.argv)
application = ApplicationWindow()
application.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()
this is Dialog_sa
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Dialog_sa.ui'
#
# Created by: PyQt5 UI code generator 5.15.1
#
# 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(301, 142)
self.buttonBox = QtWidgets.QDialogButtonBox(Dialog)
self.buttonBox.setGeometry(QtCore.QRect(-70, 110, 341, 32))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(10)
font.setBold(False)
font.setWeight(50)
self.buttonBox.setFont(font)
self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
self.buttonBox.setObjectName("buttonBox")
self.le_b = QtWidgets.QLineEdit(Dialog)
self.le_b.setGeometry(QtCore.QRect(50, 40, 131, 61))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(18)
self.le_b.setFont(font)
self.le_b.setObjectName("le_b")
self.label = QtWidgets.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(50, 20, 47, 13))
font = QtGui.QFont()
font.setFamily("Calibri")
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.label.setFont(font)
self.label.setObjectName("label")
self.pb_w = QtWidgets.QPushButton(Dialog)
self.pb_w.setGeometry(QtCore.QRect(190, 80, 75, 23))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(10)
font.setBold(False)
font.setWeight(50)
self.pb_w.setFont(font)
self.pb_w.setObjectName("pb_w")
self.pb_d = QtWidgets.QPushButton(Dialog)
self.pb_d.setGeometry(QtCore.QRect(190, 40, 75, 23))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(10)
font.setBold(False)
font.setWeight(50)
self.pb_d.setFont(font)
self.pb_d.setObjectName("pb_d")
self.retranslateUi(Dialog)
self.buttonBox.accepted.connect(Dialog.accept)
self.buttonBox.rejected.connect(Dialog.reject)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
self.label.setText(_translate("Dialog", "Balance"))
self.pb_w.setText(_translate("Dialog", "Withdraw"))
self.pb_d.setText(_translate("Dialog", "Deposit"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Dialog = QtWidgets.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())
This is MAIN_VIEW
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Main_VIEW.ui'
#
# Created by: PyQt5 UI code generator 5.15.1
#
# 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(259, 147)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pb_ca = QtWidgets.QPushButton(self.centralwidget)
self.pb_ca.setGeometry(QtCore.QRect(50, 10, 171, 41))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.pb_ca.setFont(font)
self.pb_ca.setObjectName("pb_ca")
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(50, 60, 171, 41))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.pushButton_2.setFont(font)
self.pushButton_2.setObjectName("pushButton_2")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 259, 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.pb_ca.setText(_translate("MainWindow", "Current Account"))
self.pushButton_2.setText(_translate("MainWindow", "Saving Account"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())

Cannot open second window, Event loop already running - PyQt5 [duplicate]

This question already has answers here:
Close and Open new Window PYQT5
(2 answers)
Closed 3 years ago.
I am currently trying to get a button press in one qt window to open a second window which is in another python file. My layout code was generated by converting a ui made in Qt designer to python.
My select feature code:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'movie_design.ui'
#
# Created by: PyQt5 UI code generator 5.14.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
import add_entry
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(597, 522)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(160, 40, 291, 51))
font = QtGui.QFont()
font.setPointSize(14)
font.setBold(False)
font.setUnderline(True)
font.setWeight(50)
font.setStrikeOut(False)
font.setKerning(True)
self.label.setFont(font)
self.label.setLineWidth(1)
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.label.setObjectName("label")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(170, 110, 261, 91))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton.setFont(font)
self.pushButton.setObjectName("pushButton")
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(170, 230, 261, 91))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton_2.setFont(font)
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_3.setGeometry(QtCore.QRect(170, 350, 261, 91))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton_3.setFont(font)
self.pushButton_3.setObjectName("pushButton_3")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 597, 26))
self.menubar.setObjectName("menubar")
self.menuMenu = QtWidgets.QMenu(self.menubar)
self.menuMenu.setObjectName("menuMenu")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.menubar.addAction(self.menuMenu.menuAction())
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
self.pushButton_2.clicked.connect(self.add)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.label.setText(_translate("MainWindow", "Movie Database Program"))
self.pushButton.setText(_translate("MainWindow", "Delete Record"))
self.pushButton_2.setText(_translate("MainWindow", "Add Record"))
self.pushButton_3.setText(_translate("MainWindow", "Search Records"))
self.menuMenu.setTitle(_translate("MainWindow", "Menu"))
def add(self):
add_entry.add_entry()
def main():
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
app.exec_()
if __name__ == "__main__":
main()
As you can see, I have created a button that when pressed calls the function in the program "add_entry.py"
Add entry.py code:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'add_entry.ui'
#
# Created by: PyQt5 UI code generator 5.14.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(555, 418)
self.label = QtWidgets.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(10, 30, 533, 28))
font = QtGui.QFont()
font.setPointSize(14)
self.label.setFont(font)
self.label.setTextFormat(QtCore.Qt.AutoText)
self.label.setScaledContents(False)
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.label.setObjectName("label")
self.formLayoutWidget = QtWidgets.QWidget(Dialog)
self.formLayoutWidget.setGeometry(QtCore.QRect(30, 70, 501, 321))
self.formLayoutWidget.setObjectName("formLayoutWidget")
self.formLayout = QtWidgets.QFormLayout(self.formLayoutWidget)
self.formLayout.setContentsMargins(0, 0, 0, 0)
self.formLayout.setObjectName("formLayout")
self.label_2 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.formLayout.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label_2)
self.MovieTitle = QtWidgets.QLineEdit(self.formLayoutWidget)
self.MovieTitle.setObjectName("MovieTitle")
self.formLayout.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.MovieTitle)
self.label_3 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_3.setFont(font)
self.label_3.setObjectName("label_3")
self.formLayout.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.label_3)
self.MovieStudio = QtWidgets.QLineEdit(self.formLayoutWidget)
self.MovieStudio.setObjectName("MovieStudio")
self.formLayout.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.MovieStudio)
self.label_4 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_4.setFont(font)
self.label_4.setObjectName("label_4")
self.formLayout.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.label_4)
self.dateEdit = QtWidgets.QDateEdit(self.formLayoutWidget)
self.dateEdit.setObjectName("dateEdit")
self.formLayout.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.dateEdit)
self.label_5 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_5.setFont(font)
self.label_5.setObjectName("label_5")
self.formLayout.setWidget(3, QtWidgets.QFormLayout.LabelRole, self.label_5)
self.ProductionCost = QtWidgets.QSpinBox(self.formLayoutWidget)
self.ProductionCost.setMaximum(1000000000)
self.ProductionCost.setObjectName("ProductionCost")
self.formLayout.setWidget(3, QtWidgets.QFormLayout.FieldRole, self.ProductionCost)
self.label_6 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_6.setFont(font)
self.label_6.setObjectName("label_6")
self.formLayout.setWidget(4, QtWidgets.QFormLayout.LabelRole, self.label_6)
self.BoxOfficeRevenue = QtWidgets.QSpinBox(self.formLayoutWidget)
self.BoxOfficeRevenue.setMaximum(1000000000)
self.BoxOfficeRevenue.setObjectName("BoxOfficeRevenue")
self.formLayout.setWidget(4, QtWidgets.QFormLayout.FieldRole, self.BoxOfficeRevenue)
self.label_7 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_7.setFont(font)
self.label_7.setObjectName("label_7")
self.formLayout.setWidget(5, QtWidgets.QFormLayout.LabelRole, self.label_7)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.No = QtWidgets.QRadioButton(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(10)
self.No.setFont(font)
self.No.setObjectName("No")
self.horizontalLayout.addWidget(self.No)
self.Yes = QtWidgets.QRadioButton(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(10)
self.Yes.setFont(font)
self.Yes.setObjectName("Yes")
self.horizontalLayout.addWidget(self.Yes)
self.formLayout.setLayout(5, QtWidgets.QFormLayout.FieldRole, self.horizontalLayout)
self.label_8 = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(12)
self.label_8.setFont(font)
self.label_8.setObjectName("label_8")
self.formLayout.setWidget(6, QtWidgets.QFormLayout.LabelRole, self.label_8)
self.classificationBox = QtWidgets.QComboBox(self.formLayoutWidget)
font = QtGui.QFont()
font.setPointSize(10)
self.classificationBox.setFont(font)
self.classificationBox.setObjectName("classificationBox")
self.classificationBox.addItem("")
self.classificationBox.addItem("")
self.classificationBox.addItem("")
self.classificationBox.addItem("")
self.classificationBox.addItem("")
self.formLayout.setWidget(6, QtWidgets.QFormLayout.FieldRole, self.classificationBox)
self.pushButton = QtWidgets.QPushButton(self.formLayoutWidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.pushButton.sizePolicy().hasHeightForWidth())
self.pushButton.setSizePolicy(sizePolicy)
self.pushButton.setObjectName("pushButton")
self.formLayout.setWidget(7, QtWidgets.QFormLayout.SpanningRole, self.pushButton)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
self.label.setText(_translate("Dialog", "<html><head/><body><p><span style=\" font-size:12pt; text-decoration: underline;\">Add Entry</span></p></body></html>"))
self.label_2.setText(_translate("Dialog", "Movie Title"))
self.label_3.setText(_translate("Dialog", "Movie Studio"))
self.label_4.setText(_translate("Dialog", "Release Date"))
self.label_5.setText(_translate("Dialog", "Production Cost (m$)"))
self.label_6.setText(_translate("Dialog", "Box Office Revenue (m$)"))
self.label_7.setText(_translate("Dialog", "Have you seen this movie?"))
self.No.setText(_translate("Dialog", "Yes"))
self.Yes.setText(_translate("Dialog", "No"))
self.label_8.setText(_translate("Dialog", "Classification (Age Rating)"))
self.classificationBox.setItemText(0, _translate("Dialog", "U"))
self.classificationBox.setItemText(1, _translate("Dialog", "PG"))
self.classificationBox.setItemText(2, _translate("Dialog", "12"))
self.classificationBox.setItemText(3, _translate("Dialog", "15"))
self.classificationBox.setItemText(4, _translate("Dialog", "18"))
self.pushButton.setText(_translate("Dialog", "Add Entry"))
def add_entry():
import sys
app = QtWidgets.QApplication(sys.argv)
Dialog = QtWidgets.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
app.exec_()
if __name__ == "__main__":
add_entry()
The issue is that the when the button is pressed, the program crashes, telling me that "Event loop already running". How do I fix this?

Qt, like many GUI frameworks, is based on an event loop which is started with app.exec_() and then waits for events to react to (both from the user or the system).
For each Qt program there should always be a single and only QApplication instance running its event loop.
With your implementation, each time you press the button, you're trying to create and launch a new QApplication, and Qt will not allow you for the reason above.
Nonetheless, the problem with your code is somewhere else, as you are using the generated UI code in the wrong way: those files should never be used as a basis to create your program code (in fact, you should always leave them as they are).
I suggest you to carefully read the official documentation about using Designer to understand how to use those files.
Regenerate the UI files with pyuic, and then create a new script that will probably contain something similar to this:
from PyQt5 import QtWidgets
from ui_mainwindow import Ui_MainWindow
from ui_dialog import Ui_Dialog
class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self):
super().__init__()
self.setupUi(self)
self.pushButton_2.clicked.connect(self.add)
def add(self):
dialog = Dialog(self)
dialog.exec_()
class Dialog(QtWidgets.QDialog, Ui_Dialog):
def __init__(self, parent=None):
super().__init__(parent)
self.setupUi(self)
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
sys.exit(app.exec_())
In this example I used the third method (multiple inheritance approach) explained in the documentation given above.

How can I set the sizePolicy of my mainWindow?

I made a simple mainWindow with the help of the qt designer and got the whole code using the pyuic5 option in the cmd.
I added this lineto the main part:
QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)
to be able to see my window correctly (without this its a whole mass).
In the properties inside qt designer i changed the sizePolicy values to be expanding, but when i try to run my application the sizePolicy is not working, it all stays in the left upper corner.
This is the code i got from the pyuic5:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_CompanyCommanderLogin(object):
def setupUi(self, CompanyCommanderLogin):
CompanyCommanderLogin.setObjectName("CompanyCommanderLogin")
CompanyCommanderLogin.resize(252, 227)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(CompanyCommanderLogin.sizePolicy().hasHeightForWidth())
CompanyCommanderLogin.setSizePolicy(sizePolicy)
self.centralwidget = QtWidgets.QWidget(CompanyCommanderLogin)
self.centralwidget.setObjectName("centralwidget")
self.groupBox = QtWidgets.QGroupBox(self.centralwidget)
self.groupBox.setGeometry(QtCore.QRect(10, 10, 231, 171))
self.groupBox.setObjectName("groupBox")
self.label = QtWidgets.QLabel(self.groupBox)
self.label.setGeometry(QtCore.QRect(20, 40, 71, 16))
self.label.setObjectName("label")
self.label_3 = QtWidgets.QLabel(self.groupBox)
self.label_3.setGeometry(QtCore.QRect(20, 70, 41, 16))
self.label_3.setObjectName("label_3")
self.label_4 = QtWidgets.QLabel(self.groupBox)
self.label_4.setGeometry(QtCore.QRect(20, 100, 41, 16))
self.label_4.setObjectName("label_4")
self.lineEdit_x_location = QtWidgets.QLineEdit(self.groupBox)
self.lineEdit_x_location.setGeometry(QtCore.QRect(100, 70, 51, 20))
self.lineEdit_x_location.setObjectName("lineEdit_x_location")
self.lineEdit_y_location = QtWidgets.QLineEdit(self.groupBox)
self.lineEdit_y_location.setGeometry(QtCore.QRect(100, 100, 51, 20))
self.lineEdit_y_location.setObjectName("lineEdit_y_location")
self.pushButton_login = QtWidgets.QPushButton(self.groupBox)
self.pushButton_login.setGeometry(QtCore.QRect(140, 140, 71, 21))
self.pushButton_login.setStyleSheet("background-color: rgb(0, 209, 255);\n"
"color: rgb(255, 255, 255);\n"
"background-color: rgb(0, 0, 127);")
self.pushButton_login.setObjectName("pushButton_login")
self.comboBox = QtWidgets.QComboBox(self.groupBox)
self.comboBox.setGeometry(QtCore.QRect(100, 40, 51, 21))
self.comboBox.setObjectName("comboBox")
CompanyCommanderLogin.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(CompanyCommanderLogin)
self.menubar.setGeometry(QtCore.QRect(0, 0, 252, 18))
self.menubar.setObjectName("menubar")
CompanyCommanderLogin.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(CompanyCommanderLogin)
self.statusbar.setObjectName("statusbar")
CompanyCommanderLogin.setStatusBar(self.statusbar)
self.retranslateUi(CompanyCommanderLogin)
QtCore.QMetaObject.connectSlotsByName(CompanyCommanderLogin)
def retranslateUi(self, CompanyCommanderLogin):
_translate = QtCore.QCoreApplication.translate
CompanyCommanderLogin.setWindowTitle(_translate("CompanyCommanderLogin", "Company Commander Login"))
self.groupBox.setTitle(_translate("CompanyCommanderLogin", "Login"))
self.label.setText(_translate("CompanyCommanderLogin", "<html><head/><body><p><span style=\" font-size:9pt;\">Company Number:</span></p></body></html>"))
self.label_3.setText(_translate("CompanyCommanderLogin", "<html><head/><body><p><span style=\" font-size:9pt;\">X Location:</span></p></body></html>"))
self.label_4.setText(_translate("CompanyCommanderLogin", "<html><head/><body><p><span style=\" font-size:9pt;\">Y Location:</span></p></body></html>"))
self.pushButton_login.setText(_translate("CompanyCommanderLogin", "Login"))
if __name__ == "__main__":
import sys
QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)
app = QtWidgets.QApplication(sys.argv)
CompanyCommanderLogin = QtWidgets.QMainWindow()
ui = Ui_CompanyCommanderLogin()
ui.setupUi(CompanyCommanderLogin)
CompanyCommanderLogin.show()
sys.exit(app.exec_())
What could be the problem with the sizePolicy? Is there another way to make my mainWindow the expand?
Picture for example (Here the login is in the left upper corner, I want it to be the whole window size)

As the docs points out:
The size policy of a widget is an expression of its willingness to be resized in various ways, and affects how the widget is treated by the layout engine. Each widget returns a QSizePolicy that describes the horizontal and vertical resizing policy it prefers when being laid out. You can change this for a specific widget by changing its QWidget::sizePolicy property.
The QSizePolicy work only in layouts, and in your case there are none.
So the solution is to create your design using the QXLayout, if you want to use it in Qt Designer you should read the Qt Designer Manual and especially section Using Layouts in Qt Designer.
In this case, since you have not provided the .ui that would allow me to use Qt Designer, I will quickly provide the solution from scratch
from PyQt5 import QtCore, QtGui, QtWidgets
class CompanyCommanderLogin(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.groupbox = QtWidgets.QGroupBox(self.tr("Login"))
self.company_cb = QtWidgets.QComboBox()
sp = self.company_cb.sizePolicy()
sp.setHorizontalPolicy(QtWidgets.QSizePolicy.Expanding)
self.company_cb.setSizePolicy(sp)
self.xlocation_le = QtWidgets.QLineEdit()
self.ylocation_le = QtWidgets.QLineEdit()
self.login_button = QtWidgets.QPushButton(self.tr("Login"))
self.login_button.setStyleSheet(
"background-color: rgb(0, 209, 255);\n"
"color: rgb(255, 255, 255);\n"
"background-color: rgb(0, 0, 127);"
)
font = self.font()
font.setPointSize(9)
self.setFont(font)
central_widget = QtWidgets.QWidget()
self.setCentralWidget(central_widget)
lay = QtWidgets.QVBoxLayout(central_widget)
lay.addWidget(self.groupbox)
flay = QtWidgets.QFormLayout()
flay.addRow(
self.tr("Company Number:"), self.company_cb,
)
flay.addRow(
self.tr("X Location:"), self.xlocation_le,
)
flay.addRow(
self.tr("Y Location:"), self.ylocation_le,
)
lay = QtWidgets.QVBoxLayout()
lay.addLayout(flay)
lay.addWidget(self.login_button, alignment=QtCore.Qt.AlignHCenter)
lay.addStretch()
self.groupbox.setLayout(lay)
if __name__ == "__main__":
import sys
if hasattr(QtCore.Qt, "AA_EnableHighDpiScaling"):
QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)
app = QtWidgets.QApplication(sys.argv)
w = CompanyCommanderLogin()
w.show()
sys.exit(app.exec_())

Problem with QTreeView, do not show folders

I am trying to build simple FTP client in Python and for GUI I use PyQt5. Problem is when I run program QTreeView do not showing directories, it is just blank surface. How can I code this to show folders and how to link with this listView below? I was looked on Google but I can not resolve this.
This window I get
And I want something like this
Code:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(852, 637)
MainWindow.setAnimated(True)
MainWindow.setDocumentMode(False)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.connectButton = QtWidgets.QPushButton(self.centralwidget)
self.connectButton.setGeometry(QtCore.QRect(710, 20, 111, 21))
self.connectButton.setObjectName("connectButton")
self.usernameEdit = QtWidgets.QLineEdit(self.centralwidget)
self.usernameEdit.setGeometry(QtCore.QRect(180, 20, 161, 20))
self.usernameEdit.setObjectName("usernameEdit")
self.passEdit = QtWidgets.QLineEdit(self.centralwidget)
self.passEdit.setGeometry(QtCore.QRect(350, 20, 161, 20))
self.passEdit.setObjectName("passEdit")
self.portEdit = QtWidgets.QLineEdit(self.centralwidget)
self.portEdit.setGeometry(QtCore.QRect(520, 20, 161, 20))
self.portEdit.setReadOnly(False)
self.portEdit.setObjectName("portEdit")
self.hostEdit = QtWidgets.QLineEdit(self.centralwidget)
self.hostEdit.setGeometry(QtCore.QRect(10, 20, 161, 20))
self.hostEdit.setText("")
self.hostEdit.setObjectName("hostEdit")
self.treeView = QtWidgets.QTreeView(self.centralwidget)
self.treeView.setGeometry(QtCore.QRect(10, 60, 401, 281))
self.treeView.setObjectName("treeView")
self.treeView_2 = QtWidgets.QTreeView(self.centralwidget)
self.treeView_2.setGeometry(QtCore.QRect(420, 60, 401, 281))
self.treeView_2.setObjectName("treeView_2")
self.listView = QtWidgets.QListView(self.centralwidget)
self.listView.setGeometry(QtCore.QRect(10, 350, 401, 192))
self.listView.setObjectName("listView")
self.listView_2 = QtWidgets.QListView(self.centralwidget)
self.listView_2.setEnabled(True)
self.listView_2.setGeometry(QtCore.QRect(420, 350, 401, 192))
self.listView_2.setObjectName("listView_2")
self.uploadButton = QtWidgets.QPushButton(self.centralwidget)
self.uploadButton.setGeometry(QtCore.QRect(10, 550, 401, 41))
self.uploadButton.setObjectName("uploadButton")
self.downloadButton = QtWidgets.QPushButton(self.centralwidget)
self.downloadButton.setGeometry(QtCore.QRect(420, 550, 401, 41))
self.downloadButton.setObjectName("downloadButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 852, 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", "My FTP Client"))
self.connectButton.setText(_translate("MainWindow", "Quickconnect"))
self.usernameEdit.setPlaceholderText(_translate("MainWindow", "Username"))
self.passEdit.setPlaceholderText(_translate("MainWindow", "Password"))
self.portEdit.setPlaceholderText(_translate("MainWindow", "Port"))
self.hostEdit.setPlaceholderText(_translate("MainWindow", "Host"))
self.uploadButton.setText(_translate("MainWindow", "Upload"))
self.downloadButton.setText(_translate("MainWindow", "Download"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())

How do you want the QTreeView to show something if it does not tell you what to show?, a QTreeView what it does is show the content of some model, in your case you should use a QFileSystemModel.
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
...
class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setupUi(self)
model = QtWidgets.QFileSystemModel(self)
model.setRootPath(QtCore.QDir.rootPath())
self.treeView.setModel(model)
self.treeView.expandAll()
self.treeView.setRootIndex(model.index(QtCore.QDir.rootPath()))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())

Adding a simple clock to a GUI

I have some code for a very generic/blank GUI with some labels and pushbuttons and an LCD widget. I also have some code for a separate window which just uses an LCD widget to display the time. My question is how do I insert to code for the clock into the generic GUI code to make that LCD widget display the time?
from PyQt5.QtCore import QTime, QTimer
from PyQt5.QtWidgets import QApplication, QLCDNumber
class DigitalClock(QLCDNumber):
def __init__(self, parent=None):
super(DigitalClock, self).__init__(parent)
self.setSegmentStyle(QLCDNumber.Filled)
timer = QTimer(self)
timer.timeout.connect(self.showTime)
timer.start(1000)
self.showTime()
self.setWindowTitle("Digital Clock")
self.resize(150, 60)
def showTime(self):
time = QTime.currentTime()
text = time.toString('hh:mm')
if (time.second() % 2) == 0:
text = text[:2] + ' ' + text[3:]
self.display(text)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
clock = DigitalClock()
clock.show()
sys.exit(app.exec_())
That's the code for the simple clock and I want to insert that into the following to make the LCD widget display the time like this one does:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_mainWindow(object):
def setupUi(self, mainWindow):
mainWindow.setObjectName("mainWindow")
mainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(mainWindow)
self.centralwidget.setObjectName("centralwidget")
self.Clock = QtWidgets.QWidget(self.centralwidget)
self.Clock.setGeometry(QtCore.QRect(60, 420, 120, 80))
self.Clock.setObjectName("Clock")
self.DigitalClock = QtWidgets.QLCDNumber(self.centralwidget)
self.DigitalClock.setGeometry(QtCore.QRect(110, 190, 64, 23))
self.DigitalClock.setDigitCount(8)
self.DigitalClock.setObjectName("DigitalClock")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(100, 60, 75, 23))
self.pushButton.setObjectName("pushButton")
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(100, 110, 75, 23))
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_3.setGeometry(QtCore.QRect(100, 150, 75, 23))
self.pushButton_3.setObjectName("pushButton_3")
self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_4.setGeometry(QtCore.QRect(230, 60, 75, 23))
self.pushButton_4.setObjectName("pushButton_4")
self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_5.setGeometry(QtCore.QRect(220, 100, 75, 23))
self.pushButton_5.setObjectName("pushButton_5")
self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_6.setGeometry(QtCore.QRect(230, 150, 75, 23))
self.pushButton_6.setObjectName("pushButton_6")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(20, 60, 47, 13))
self.label.setObjectName("label")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(20, 120, 47, 13))
self.label_2.setObjectName("label_2")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(20, 160, 47, 13))
self.label_3.setObjectName("label_3")
mainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(mainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 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", "Sim Monitor"))
self.pushButton.setText(_translate("mainWindow", "PushButton"))
self.pushButton_2.setText(_translate("mainWindow", "PushButton"))
self.pushButton_3.setText(_translate("mainWindow", "PushButton"))
self.pushButton_4.setText(_translate("mainWindow", "PushButton"))
self.pushButton_5.setText(_translate("mainWindow", "PushButton"))
self.pushButton_6.setText(_translate("mainWindow", "PushButton"))
self.label.setText(_translate("mainWindow", "TextLabel"))
self.label_2.setText(_translate("mainWindow", "TextLabel"))
self.label_3.setText(_translate("mainWindow", "TextLabel"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
mainWindow = QtWidgets.QMainWindow()
ui = Ui_mainWindow()
ui.setupUi(mainWindow)
mainWindow.show()
sys.exit(app.exec_())

Simple solution:
Assuming that the first file is called DigitalClock.py and the second main.py then it is only necessary to add the import to main.py and change the line that the QLCDNumber creates:
main.py
from DigitalClock import DigitalClock
# ...
self.DigitalClock = DigitalClock(self.centralwidget) # QtWidgets.QLCDNumber(self.centralwidget)
Long solution:
Promote the QLCDNumber to use the DigitalClock, you could take the guide of this other answer where you would exchange QVideoWidget with DigitalClock and PyQt5.QtMultimediaWidgets with DigitalClock.
The other way is to create a widget plugin so that it can be used directly in Qt Designer.

DigitalClockFile.py
from PyQt5.QtCore import QTime, QTimer
from PyQt5.QtWidgets import QApplication, QLCDNumber
class DigitalClock(QLCDNumber):
def __init__(self, parent=None):
super(DigitalClock, self).__init__(parent)
self.setSegmentStyle(QLCDNumber.Filled)
self.setDigitCount(10)
timer = QTimer(self)
timer.timeout.connect(self.showTime)
timer.start(1000)
self.showTime()
self.setWindowTitle("Digital Clock")
self.resize(150, 60)
def showTime(self):
time = QTime.currentTime()
text = time.toString('hh:mm:ss')
if (time.second() % 2) == 0:
text = text[:2] + ' ' + text[3:5]+' '+text[6:]
self.display(text)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
clock = DigitalClock()
clock.show()
sys.exit(app.exec_())
generatedUI.py (from QtDesigner)
from PyQt5 import QtCore, QtGui, QtWidgets
import sys
class Ui_mainWindow(object):
def setupUi(self, mainWindow):
mainWindow.setObjectName("mainWindow")
mainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(mainWindow)
self.centralwidget.setObjectName("centralwidget")
self.Clock = QtWidgets.QWidget(self.centralwidget)
self.Clock.setGeometry(QtCore.QRect(60, 420, 120, 80))
self.Clock.setObjectName("Clock")
# Remove DigitalClock FROM YOUR UI DESIGN,Since you already implemented your Digital Clock
# I would suggest regenerating .py from .ui after deleting digitalClock
# instead of commenting uot like me
# self.DigitalClock = QtWidgets.QLCDNumber(self.centralwidget)
# self.DigitalClock.setGeometry(QtCore.QRect(110, 190, 64, 23))
# self.DigitalClock.setDigitCount(8)
# self.DigitalClock.setObjectName("DigitalClock")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(100, 60, 75, 23))
self.pushButton.setObjectName("pushButton")
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(100, 110, 75, 23))
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_3.setGeometry(QtCore.QRect(100, 150, 75, 23))
self.pushButton_3.setObjectName("pushButton_3")
self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_4.setGeometry(QtCore.QRect(230, 60, 75, 23))
self.pushButton_4.setObjectName("pushButton_4")
self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_5.setGeometry(QtCore.QRect(220, 100, 75, 23))
self.pushButton_5.setObjectName("pushButton_5")
self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_6.setGeometry(QtCore.QRect(230, 150, 75, 23))
self.pushButton_6.setObjectName("pushButton_6")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(20, 60, 47, 13))
self.label.setObjectName("label")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(20, 120, 47, 13))
self.label_2.setObjectName("label_2")
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(20, 160, 47, 13))
self.label_3.setObjectName("label_3")
mainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(mainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 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", "Sim Monitor"))
self.pushButton.setText(_translate("mainWindow", "PushButton"))
self.pushButton_2.setText(_translate("mainWindow", "PushButton"))
self.pushButton_3.setText(_translate("mainWindow", "PushButton"))
self.pushButton_4.setText(_translate("mainWindow", "PushButton"))
self.pushButton_5.setText(_translate("mainWindow", "PushButton"))
self.pushButton_6.setText(_translate("mainWindow", "PushButton"))
self.label.setText(_translate("mainWindow", "TextLabel"))
self.label_2.setText(_translate("mainWindow", "TextLabel"))
self.label_3.setText(_translate("mainWindow", "TextLabel"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
mainWindow = QtWidgets.QMainWindow()
ui = Ui_mainWindow()
ui.setupUi(mainWindow)
mainWindow.show()
sys.exit(app.exec_())
main.py
from DigitalClockFile import DigitalClock
from generatedUI import Ui_mainWindow
from PyQt5.QtCore import QTime, QTimer
from PyQt5.QtWidgets import QApplication, QLCDNumber
from PyQt5 import QtWidgets,QtCore
class transformedUI(Ui_mainWindow):
def __init__(self):
super(transformedUI,self).__init__()
def setupUi(self,mainWindow):
super(transformedUI,self).setupUi(mainWindow)
self.DigitalClock=DigitalClock(self.centralwidget)
self.DigitalClock.setGeometry(QtCore.QRect(110, 190, 200, 100))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
mainWindow = QtWidgets.QMainWindow()
ui = transformedUI()
ui.setupUi(mainWindow)
mainWindow.show()
sys.exit(app.exec_())
Add all the three files in the single directory.Since you already implement DigitalClock dont add the clock in thi UI just inherit class generated by QtDEsigner and add your clock in the inherited transformedUI.py and simply running the main.py will achieve desired task.Hope it helps

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