Batch download cover images from Amazon

get_cover_images.py

#!/usr/bin/python

import shlex, subprocess
import os, os.path
import sys
import time
import argparse

FILE_NAME = 'amazon.txt'
IMAGE_PATH = '~/Documents/BookImages/'

def get_images(file_name=FILE_NAME, image_path=IMAGE_PATH):
    
    f = open(os.path.expanduser(file_name))
    d = os.path.expanduser(image_path)

    if d[-1] != "/":
        d += "/"
    
    if not os.path.exists(d):
        os.mkdir(d)
         
    os.chdir(d)

    for line in f:
        image_URL = "http://images.amazon.com/images/P/%s.01.LZZZZZZZ.jpg" % line.strip()
        command_line = "curl -O " + image_URL 
        args = shlex.split(command_line)
        p = subprocess.Popen(args)
        time.sleep(3)


def main():

    parser = argparse.ArgumentParser(description="Batch download cover images from Amazon")
    parser.add_argument('input_file', help="a file with Amazon item IDs, one per line")
    parser.add_argument('path', help="the path to the folder where the images will be downloaded")
    args = parser.parse_args()

    get_images(args.input_file, args.path)

if __name__ == '__main__':
    main()