Syntax error How to use Boto3 library in Python to get the list of buckets present in AWS S3?

How to use Boto3 library in Python to get the list of buckets present in AWS S3?

Problem Statement − Use boto3 library in Python to get the list of all buckets present in AWS.

Example − Get the name of buckets like – BUCKET_1, BUCKET2, BUCKET_3

Approach/Algorithm to solve this problem

Step 1 − Import boto3 and botocore exceptions to handle exceptions.

Step 2 − Create an AWS session using Boto3 library.

Step 3 − Create an AWS resource for S3

Step 4 − Use the function buckets.all() to list out the bucket names.

Step 5 − Handle any unwanted exception, if it occurs

Step 6 − Return the list of buckets_namev

Example

The following code gets the list of buckets present in S3 −

import boto3
from botocore.exceptions import ClientError
# To get list of buckets present in AWS using S3 resource
def get_buckets_resource():
   session = boto3.session.Session()
   # User can pass customized access key, secret_key and token as well
   s3_resource = session.resource('s3')
   try:
      buckets = list(s3_resource.buckets.all())
      print("Got buckets using resource:", buckets)
   except ClientError:
      print("Couldn't get buckets.")
      raise
   else:
      return buckets
get_buckets_resource()

Output

 
Got buckets using resource:[s3.Bucket(name='BUCKET_1'),
s3.Bucket(name='BUCKET_2'), s3.Bucket(name='BUCKET_3)………… ]


Updated on: 2021-03-22T07:33:34+05:30

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