def qr(self,text):
        """ Print QR Code for the provided string """
        qr_code = qrcode.QRCode(version=4, box_size=4, border=1)
        qr_code.add_data(text)
        qr_code.make(fit=True)
        qr_img = qr_code.make_image()
        im = qr_img._img.convert("RGB")
        # Convert the RGB image in printable image
        self._convert_image(im)