Unique QR codes w/ hash of current timestamp

main.py

#!/usr/bin/python2.7

__author__ = "[email protected]"

import hashlib
import os
import qrcode
import time


def gen_qr(folder, create):
    encoder = qrcode.Encoder()
    data = str(gen_name())
    path = "/home/qrcodes"
    image = encoder.encode(
            data,
            version=15,
            mode=encoder.mode.BINARY,
            eclevel=encoder.eclevel.H)
    # /home/qrcodes/subfolder/xxxx.png
    if create:
        os.mkdir("%s/%s" % (path, str(folder)))
    image.save("%s/%s/%s.png" % (path, str(folder), data))  


def gen_name():
    now = time.time()
    uniq = hashlib.md5()
    uniq.update(str(now))
    return uniq.hexdigest()


def main():
    now = time.time()
    counter = 0
    directory = 0
    create = True

    while True:
        gen_qr(directory, create)
        create = False
        if counter % 10000 == 0 and counter > 2:
            print "Generated %d QR codes in %d seconds" % (
                    counter, time.time() - now)

        # max inodes = 32K on ext4 so creating a sub-folder every 30K
        if counter % 30000 == 0 and counter > 2:
            directory += 1
            create = True

        counter += 1


if __name__ == "__main__":
    main()