Create big file

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#  generate_png.py
#
#  Copyright 2015 akutsan <akutsan@akutsan>
#
#  Generate PNG file with preloaded cycled content
#
import argparse


parser = argparse.ArgumentParser()
parser.add_argument('--size',  type=int,  required=True,
	 help='Size of file to in megabytes')
parser.add_argument('--name',  type=str,  required=True,
	 help='place to store file')
args = parser.parse_args()

dead_bief = [0xD, 0xE, 0xA, 0xD, 0xB, 0xE, 0xE, 0xF]
size_in_bytes = args.size * 1024 * 1024
dead_bief = dead_bief * (size_in_bytes/len(dead_bief))
buf = ''.join(map(lambda x : chr(x), dead_bief))
f = open(args.name, "wb")
f.write(buf)
f.close()