import os
ACCESS_KEY_ID = os.environ['ACCESS_KEY_ID']
SECRET_ACCESS_KEY = os.environ['SECRET_ACCESS_KEY']

# SNIP
import boto

def list_all_buckets(s3):
    buckets = s3.get_all_buckets()
    return buckets

def main():
    s3 = boto.connect_s3(
        aws_access_key_id=ACCESS_KEY_ID,
        aws_secret_access_key=SECRET_ACCESS_KEY)
    buckets = list_all_buckets(s3)
    
    print buckets

main()
# SNAP