ITEM_PIPELINES = {'scrapy.contrib.pipeline.images.ImagesPipeline': 1}
IMAGES_STORE = 's3://my-bucket-name/'
IMAGES_EXPIRES = 180
IMAGES_THUMBS = {'small': (50, 50), 'big': (300, 300)}
AWS_ACCESS_KEY_ID = 'your-access-key'
AWS_SECRET_ACCESS_KEY = 'your-secret-access-key'
how to store scrapy images on Amazon S3?