Working with files in AWS S3

aws_file.py

from boto.s3.connection import S3Connection
from boto.s3.key import Key

# Get connection using Amazon secret and access keys
conn = S3Connection('<aws secret key>', '<aws access key>')

# Get the bucket with name 'bucketname'
bucket = conn.get_bucket('bucketname')

# Get the key reference to file 'picture.jpg'
key = bucket.get_key("picture.jpg")

# Open file in write mode
fp = open ("picture.jpg", "w")

# Set the reference to file
key.get_file (fp)