cids - image downloader

cids.py

from bs4 import BeautifulSoup
import re, os, sys, glob, requests, urllib2

def getSource(url):
	return urllib2.urlopen(url).read()

def getMatches(source):
	#This match changes according to the source... The fileThumb works for anything methinks
	return BeautifulSoup(source).select('.fileThumb')

def downloadImage(imageURL, fileName):
	response = requests.get(imageURL)

	#Make sure it's a successful download
	if response.status_code == 200:
		print('Downloading %s...' % (fileName))

	else:
		print('File could not be downloaded :(')
		
	if not os.path.exists('Images'):
		os.makedirs('Images')

	#Write to file	
	with open(os.path.join('Images', fileName), 'wb') as fo:
		for chunk in response.iter_content(4096):
			fo.write(chunk)	

def run():
	url = raw_input("Thread URL? ")
	matches = getMatches(getSource(url))

	for i in xrange(len(matches)):
		href = matches[i]['href']
		
		localFileNameMatches = re.search(r"//(.*)/(.*)/(.*\..*)", href)
		localFileName = localFileNameMatches.group(2) + "_" + localFileNameMatches.group(3)
		downloadImage('http:' + href, localFileName)
		
run()

Little image downloader I wrote back when I was first learning python. It was originally only for 4chan thread images. It only consists of 1 file so I didn't think it deserved its own repository.