QR program

import pyqrcode
import time
from pyzbar.pyzbar import decode
from PIL import Image
if __name__ == '__main__':

    while 1:
        print('What do you want to do:\n1 - Generate QR Code\n2 - Scan QR Code')
        sa = int(input('Enter your choice: '))

        if sa == 1:
            sen = input('Enter text or URL address: ')
            qr = pyqrcode.create(sen)
            file = input('Give a title to your QR code: ')
            qr.png(f'{file}.png', scale=8)
            time.sleep(2)
            print('Successfully generated...')

        elif sa == 2:
            say = input('Which file do you want to Scan: ')
            a = decode(Image.open(f'{say}.png'))
            print('Scanning...')
            time.sleep(2)
            print(f'\n Text Scanned: {a[0][0]}')

        else:
            print('Warning! Wrong choice... Please try again!\n')

        command = input('Do you want to continue - [Y/N]: ').lower()
        if command == 'y':
            continue
        else:
            exit()