Download original files of photos in a flickr photoset

FlickrSetDownloader.py

import urllib
import os
import flickrapi

api_key = ""
api_secret = ""

def download_set(user_id, set_id):
    flickr = flickrapi.FlickrAPI(api_key, api_secret, format='parsed-json', cache=True)
    photos = flickr.photosets.getPhotos(user_id=user_id, photoset_id=set_id)

    for i, photo in enumerate(photos['photoset']['photo']):
        sizes = flickr.photos.getSizes(photo_id=photo['id'])['sizes']['size']   
        original = [s for s in sizes if s['label'] == "Original"][0]
        filename = "%s.jpg" % photo['title']

        if os.path.exists(filename) == False:
            print "downloading", filename
            urllib.urlretrieve (original['source'], filename)
            
if __name__ == '__main__':
    download_set("user-id", "set-id")