Create a QR Code

qr_code.py

#!/usr/bin/env python3

"""Create a QR Code

"""

import os
import sys
import argparse

import qrcode


def main(arguments):

    parser = argparse.ArgumentParser(
        description=__doc__,
        formatter_class=argparse.RawDescriptionHelpFormatter)
    parser.add_argument('url')
    parser.add_argument('-o', '--outfile', help="Output file",
                        default='qrcode.png')

    args = parser.parse_args(arguments)

    # Create an instance of QRCode
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_L,
        box_size=10,
        border=4,
    )

    # Add the URL data to the QR code
    qr.add_data(args.url)
    qr.make(fit=True)

    # Create an image from the QR Code instance
    img = qr.make_image(fill='black', back_color='white')

    # Save the image to a file
    img.save(args.outfile)


if __name__ == '__main__':
    sys.exit(main(sys.argv[1:]))