QRadioButton PyQt5

QRadioButton.py

# you can copy paste and run this code for test

# By default QRadioButtons can be selected at a time

import sys
from PyQt5.QtWidgets import QApplication, QHBoxLayout, QWidget, QMainWindow, QRadioButton
class Radiodemo(QWidget):
	def __init__(self, parent=None):
		super(Radiodemo, self).__init__(parent)
		layout = QHBoxLayout()
        
		self.b1=QRadioButton("Button1") # create
		self.b1.setChecked(True) # set State (True/False)
		self.b1.toggled.connect(lambda:self.myMethod(self.b1)) # connect our signal

		self.b2=QRadioButton("Button2") # again create
		self.b2.toggled.connect(lambda:self.myMethod(self.b2)) # and connect our signal

        layout.addWidget(self.b1)
		layout.addWidget(self.b2)
		self.setLayout(layout)
		self.setWindowTitle("RadioButton demo")
	def myMethod(self,b):
		if b.text()=="Button1":
			if b.isChecked()==True:
				print (b.text()+" is selected")
			else:
				print (b.text()+" is deselected")
		if b.text()=="Button2":
			if b.isChecked()==True:
				print (b.text()+" is selected")
			else:
				print (b.text()+" is deselected")
def main():
	app = QApplication(sys.argv)
	ex = Radiodemo()
	ex.show()
	sys.exit(app.exec_())
if __name__ == '__main__':
	main()