S3 Bucket Size

S3 Size

# Crude but does the job

from boto.s3.connection import S3Connection

conn = XXX

rs = conn.get_all_buckets()

# Get bucket
bucket_name = 'XXX'
for b in rs:
  if b.name == bucket_name:
      bucket = b 

total_bytes = 0
for key in bucket:
  total_bytes += key.size

total_bytes
Out[21]: 365139901385

or

340 Gb