This code allows one to add, remove files within S3 buckets using boto package

AWS Bucket.py

from boto.s3.connection import S3Connection
import logging


conn = S3Connection('','') # sec keys
bucket = conn.get_bucket('') # bucket_name
for key in bucket.list():
    try:
        res = key.get_contents_to_filename(key.name)
    except:
        logging.info(key.name+":"+"FAILED")


import boto
import sys, os
from boto.s3.key import Key
from boto.exception import S3ResponseError


DOWNLOAD_LOCATION_PATH = os.path.expanduser("~") + "/s3-backup/"
if not os.path.exists(DOWNLOAD_LOCATION_PATH):
	print ("Making download directory")
	os.mkdir(DOWNLOAD_LOCATION_PATH)


def backup_s3_folder():
	BUCKET_NAME = "" #bucket_name
	AWS_ACCESS_KEY_ID= os.getenv("AWS_KEY_ID") # set your AWS_KEY_ID  on your environment path
	AWS_ACCESS_SECRET_KEY = os.getenv("AWS_ACCESS_KEY") # set your AWS_ACCESS_KEY  on your environment path
	conn  = boto.connect_s3(AWS_ACCESS_KEY_ID, AWS_ACCESS_SECRET_KEY)
	bucket = conn.get_bucket(BUCKET_NAME)

	#goto through the list of files
	bucket_list = bucket.list()

	for l in bucket_list:
		key_string = str(l.key)
		s3_path = DOWNLOAD_LOCATION_PATH + key_string
		try:
			print ("Current File is ", s3_path)
			l.get_contents_to_filename(s3_path)
		except (OSError,S3ResponseError) as e:
			pass
			# check if the file has been downloaded locally
			if not os.path.exists(s3_path):
				try:
					os.makedirs(s3_path)
				except OSError as exc:
					# let guard againts race conditions
					import errno
					if exc.errno != errno.EEXIST:
						raise




if __name__ == '__main__':
backup_s3_folder()