Utility function that helps upload files to S3 using python and boto

s3upload.py

#s3_object_key is the file path relative to the your S3 URL where you want to store the file

Eg.
s3_object_key = '%s/%s' %(settings.USER_PROFILE_PICTURE_DIR, filename)


#file is the file that you have create locally either in ephermal storage (Like the Heroku Dyno) or permanent storage like your local file system

#Write to local storage
Eg.

avatar = urlopen(url).read() #Pick a random file on the internet

fout = open(os.path.join(filepath, filename), "wb") 
fout.write(avatar)
fout.close()


def push_picture_to_s3(s3_upload_key, file):
    try:
        import boto
        from boto.s3.key import Key
       
        bucket_name = settings.AWS_STORAGE_BUCKET_NAME
        
	# connect to the bucket
        conn = boto.connect_s3(settings.AWS_ACCESS_KEY_ID,
                settings.AWS_SECRET_ACCESS_KEY)
        bucket = conn.get_bucket(bucket_name)
        
        # create a key to keep track of our file in the storage 
        k = Key(bucket)
        k.key = s3_upload_key
        k.set_contents_from_filename(file)
        # we need to make it public so it can be accessed publicly
        # using a URL like http://s3.amazonaws.com/bucket_name/key
        k.make_public()
        # remove the file from the web server
        os.remove(file)
    except Exception:
        raise