main.py

from PyQt5.QtWidgets import QMainWindow, QLabel, QApplication


class MainWindow(QMainWindow):
	def __init__(self):
		super(MainWindow, self).__init__()

		self.window_configurations()
		self.frontend()

	def window_configurations(self):

		self.resize(500, 500)
		self.setWindowTitle("Hello World PyQt5 GUI")

	def frontend(self):

		label = QLabel(self)
		label.setText("Hello World")
		label.move(200, 200)
		label.show()


def main():
	application = QApplication([])
	window = MainWindow()
	window.show()
	application.exec_()


main()