Create a second window containing QRadioButtons

pyqt5_second_window.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-


"""
Create a second window (QWidget)
Version: 1.0
Python 3.8+
Date created: July 15th, 2021
Date modified: -
"""

import sys
from PyQt5.QtWidgets import (QApplication,
                             QLabel,
                             QMainWindow,
                             QPushButton,
                             QRadioButton,
                             QVBoxLayout,
                             QHBoxLayout,
                             QWidget)


class AnotherWindow(QWidget):

    def __init__(self):
        super().__init__()

        vbox = QVBoxLayout()
        hbox = QHBoxLayout()

        rb1 = QRadioButton("1", self)
        rb1.toggled.connect(self.updateLabel)

        rb2 = QRadioButton("2", self)
        rb2.toggled.connect(self.updateLabel)

        self.label = QLabel("1 or 2?")

        hbox.addWidget(rb1)
        hbox.addWidget(rb2)

        vbox.addLayout(hbox)
        vbox.addWidget(self.label)

        self.setLayout(vbox)

        self.setGeometry(250, 250, 250, 250)
        self.setWindowTitle('QRadioButton')

    def updateLabel(self, value):

        rbtn = self.sender()

        if rbtn.isChecked() == True:
            self.label.setText(rbtn.text())
            MainWindow.show_value(rbtn.text())


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

        self.w = AnotherWindow()
        self.button = QPushButton("Show another window")
        self.button.clicked.connect(self.toggle_window)
        self.setCentralWidget(self.button)

    def toggle_window(self, checked):
        if self.w.isVisible():
            self.w.hide()
        else:
            self.w.show()

    def show_value(value):
        print(f"Value = {value}")


app = QApplication(sys.argv)
w = MainWindow()
w.show()
app.exec_()