s3-list-all-files-in-all-buckets.py

import boto
s3 = boto.connect_s3("key", "secret")

for bucket in s3.get_all_buckets():
  if not bucket.name.islower():
    print "-- skipping bucket, cannot handle uppercase bucket names: " + bucket.name
    continue
  for file in bucket:
    print "\t\t" + str(file.size) + "\t" + file.name