Fast deletion of S3 bucket contents.

dltr.py

import sys
import boto

buckets = sys.argv[1:]
if "," in buckets:
  buckets = buckets.split(",")
buckets = [bucket.strip() for bucket in buckets]

if not buckets:
  sys.stderr.write("Usage: {0} <bucket> [[bucket] ...]\n".format(sys.argv[0]))
  sys.exit(1)

try:
  conn = boto.connect_s3()
except boto.exception.NoAuthHandlerFound:
  sys.stderr.write("Error: boto failed to connect to s3, check AWS_ACCESS_KEY_ID and\n"
                   "AWS_SECRET_ACCESS_KEY env variables.")
  raise

s3_buckets = []

try:
  for bucket_name in buckets:
    bucket = conn.get_bucket(bucket_name)
    s3_buckets.append(bucket)
except boto.exception.S3ResponseError:
  sys.stderr.write("Error: bucket {0} not found or access denied\n".format(bucket_name))
  sys.exit(2)

for bucket in s3_buckets:
  bucket.delete_keys(bucket.list(), quiet=True)