open new window in pyqt5

Samuel Bachorik

This post is deleted!

raven-worx

@Samuel-Bachorik
i cant provide a python sample code.
But basically a new window is shown for a widget without a parent or if it has a parent the widget's window flag property is set to Qt::Window.

JonB

@Samuel-Bachorik
connect() the first window's button clicked signal to a slot which calls secondWindow.show(). This is one of the most basic things you can do in a Qt UI.

firstWindow.button.clicked.connect(secondWindow.show)

Samuel Bachorik

This is how my first windows looks like is it possible to connect it by your way @JonB
And my second window looks same just changed few things.

class MyWindow(QMainWindow):
counter = 0
score = 0
test = 0

def __init__(self):
    self.question_prompts = [

    ]

    self.score = 0
    self.counter = 0
    self.test = 0
    super(MyWindow, self).__init__()
    self.setGeometry(200, 200, 500, 300)
    self.setWindowTitle("Samko")

    self.label = QtWidgets.QLabel(self)
    self.label.move(20, 30)
    self.label.setText("Login system")
    self.update()

    self.label1 = QtWidgets.QLabel(self)
    self.label1.move(151, 50)
    self.label1.setText("Do you have account\ny/n ?")
    self.update2()

    self.b1 = QtWidgets.QPushButton(self)
    self.b1.setText("Enter")
    self.b1.move(149, 120)
    self.b1.resize(100, 32)
    self.b1.clicked.connect(self.clicked)

    self.textbox = QLineEdit(self)
    self.textbox.move(150, 90)
    self.textbox.resize(170, 28)
    self.textboxValue = self.textbox.text()




def update(self):
    self.label.adjustSize()

def update2(self):
    self.label1.adjustSize()

def window():
app = QApplication(sys.argv)
win = MyWindow()
win.show()
sys.exit(app.exec_())

window()

JonB

@Samuel-Bachorik said in open new window in pyqt5:

self.b1.clicked.connect(self.clicked)

That will make clicking the button connect to whatever the MyWindow.clicked method does. Where is that in your code? The method needs to show secondWindow, or just make it self.b1.clicked.connect(secondWindow.show), as I said.

Volodymyr14

You can try subprocess to open your secondfile.py at the same time from the first window. :)

Samuel Bachorik

Wow thank you man ! For your help ! My program is working now !! Thank you a lot !

Volodymyr14

class MainWindow(QWidget):

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

bahadirio

Hello guys.

I have another but so close question. The main problem is all this tactics is not working on qtdesigner based .py files.

For examples:

As you see there is just one buton. There is nothing more.

Just i wanted, when i push the button launch the same things.

This the first untouched code:

-- coding: utf-8 --

Form implementation generated from reading ui file 'x.ui'

Created by: PyQt5 UI code generator 5.15.2

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(260, 226)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(90, 120, 75, 23))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 260, 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", "PushButton"))

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_())

I just copied the class

It's offer me build init

I aceepted

Finally any solution didn't help me. Especially designer based codes hasn't solution.

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow2(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(260, 226)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(90, 120, 75, 23))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 260, 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", "PushButton"))

class Ui_MainWindow(object):
def init(self):
self.nextWindow = Ui_MainWindow2()

def setupUi(self, MainWindow):
    MainWindow.setObjectName("MainWindow")
    MainWindow.resize(260, 226)
    self.centralwidget = QtWidgets.QWidget(MainWindow)
    self.centralwidget.setObjectName("centralwidget")
    self.pushButton = QtWidgets.QPushButton(self.centralwidget)
    self.pushButton.setGeometry(QtCore.QRect(90, 120, 75, 23))
    self.pushButton.setObjectName("pushButton")
    MainWindow.setCentralWidget(self.centralwidget)
    self.menubar = QtWidgets.QMenuBar(MainWindow)
    self.menubar.setGeometry(QtCore.QRect(0, 0, 260, 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", "PushButton"))

    self.pushButton.clicked.connect(self.launcher)

def launcher(self):
    self.nextWindow.show()

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_())