Why wasn't the graphical interface drawn in the terminal after launch?

Question

Python

Converted ui file to python code.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QIcon
from my_dezainer import Ui_MainWindow

class CurrencyConv(QtWidgets.QMainWindow):
def __init__(self):
super(CurrencyConv, self).__init__()
self.ui = Ui_MainWindow( )
self.ui.setupUi(self)

app = QtWidgets.QApplication([])
application = CurrencyConv()
application.show()
sys.exit(app.exec())

But it loads empty window without design, in Visual st code editor Code
Although the file itself is converted to py format, it opens with a design through the console!
where is the error please help?

Answer 1

Try like this

class CurrencyConv(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):
        super().__init__()
        QtWidgets.QMainWindow.__init__(self)
        self.setupUi(self)

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    application = CurrencyConv()
    application.show()
    sys.exit(app.exec_())