S3 bucket size with Boto3

We are working on some automation where we need to find out all our s3 bucket size and after that we need intimate respective team regarding it.

For that we wrote below script in boto3 which will give size of one bucket and we can make it little better to run for all the buckets. I uploaded the code to my github repo and you guys can make use of it.

Subhasis180689/python

import sys
import boto3
import datetime
s3client = boto3.client(
 's3', 
 aws_access_key_id='access_key',
 aws_secret_access_key='secret_key'
 #aws_session_token='if token',
 )
allbuckets = s3client.list_buckets()
for bucket in allbuckets['Buckets']:
 print(bucket)
 
s3 = boto3.resource('s3',
 aws_access_key_id='access_key',
 aws_secret_access_key='secret_key'
 #aws_session_token='if session token',
 )
size_byte=0
my_bucket=s3.Bucket('example-bucket')
for my_bucket_object in my_bucket.objects.all():
 print(my_bucket_object.key)
 size_byte=size_byte+my_bucket_object.size
totalsize_gb=size_byte/1000/1024/1024
print(size_byte)
print(totalsize_GB)

Cheers !!!

Original Content you can find here.

S3 bucket size with Boto3