QSizePolicy doesnt work

[RamanSMann]

QSizePolicy doesn't work. button,text and label doesnt scale with the main window. I tried different way and followed online Tutorials. but it still doesn't work. i am not sure what i am doing wrong. Help me Wizards

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QSizePolicy


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(472, 464)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Expanding)
        MainWindow.setSizePolicy(sizePolicy)
        MainWindow.setBaseSize(QtCore.QSize(1, 1))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        
        self.verticalLayoutWidget = QtWidgets.QWidget(self.centralwidget)
        self.verticalLayoutWidget.setGeometry(QtCore.QRect(10, 10, 451, 411))
        self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
        
        self.label = QtWidgets.QLabel(self.verticalLayoutWidget)
        font = QtGui.QFont()
        font.setPointSize(24)
        self.label.setFont(font)
        self.label.setScaledContents(True)
        self.label.setObjectName("label")
        self.verticalLayout.addWidget(self.label)
        
        self.textEdit = QtWidgets.QTextEdit(self.verticalLayoutWidget)
        font = QtGui.QFont()
        font.setPointSize(16)
        self.textEdit.setFont(font)
        self.textEdit.setSizeAdjustPolicy(QtWidgets.QAbstractScrollArea.AdjustToContentsOnFirstShow)
        self.textEdit.setObjectName("textEdit")
        self.verticalLayout.addWidget(self.textEdit)
        
        self.pushButton = QtWidgets.QPushButton(self.verticalLayoutWidget)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Expanding)
        self.pushButton.setSizePolicy(sizePolicy)
        font = QtGui.QFont()
        font.setPointSize(24)
        self.pushButton.setFont(font)
        self.pushButton.setObjectName("pushButton")
        self.verticalLayout.addWidget(self.pushButton)
        
        self.verticalLayout.setStretch(0, 1)
        self.verticalLayout.setStretch(1, 7)
        self.verticalLayout.setStretch(2, 2)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 472, 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.label.setText(_translate("MainWindow", "Whats ur name ?"))
        self.pushButton.setText(_translate("MainWindow", "Submit"))


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_())

[JonB]

@RamanSMann
I have not tried your code. "doesnt scale" in what way, what do you expect? Layouts don't do scaling. And self.label.setScaledContents(True) won't scale anything on your label either.

[RamanSMann]

@JonB hi,
thank you for looking at my code
its like, if i increase the size of the window, the buttons and labels in it scale(resize) with it

[RamanSMann]

it worked, i realized my QVlayout was just floating in the window, so i attached it to the window with grid layout.
https://stackoverflow.com/questions/3492739/auto-expanding-layout-with-qt-designer