grab the images at a url

grab_images.py

#!/usr/bin/python
#Author: Chris Hokamp
#Spring 2013

import sys
import requests
from BeautifulSoup import BeautifulSoup
import re

if len(sys.argv) != 4:
    sys.exit("Usage: grabImages.py <url> <fiterString> <path-to-save>")

url = sys.argv[1].strip()
filterStr = sys.argv[2].strip()
savePath = sys.argv[3].strip()
req = requests.get(url)

bs = BeautifulSoup(req.text)
#print bs
imgUrls = [x['src'] for x in bs('img')]
for x in bs('img'):
    print x

r = re.compile(filterStr, re.IGNORECASE)
goodOnes = filter(lambda x: r.search(x) is not None, imgUrls)
for img in goodOnes:
    print img
    imgData = requests.get(img)
    imgFileName = "%s/%s" % (savePath, img.split('/')[-1])
    #print "File Name %s" % imgFileName
    imgFile = open(imgFileName, 'wb')
    imgFile.write(imgData.content)
    imgFile.close()
    print "Saved %s" % imgFileName

#This line didn't work??: python grabImages.py "http://www.buzzfeed.com/mjs538/things-youll-see-only-in-china" .jpg ~/Pictures/only_in_china