How to check wether a bucket exists using boto3

Question

I want to check whether a bucket exists or not using boto3. How to achieve that?

Answer 1

You can use this code to check whether the bucket is available or not

import boto3
s3 = boto3.resource('s3')
print(s3.Bucket('priyajdm') in s3.buckets.all())

Comments

This could be very expensive call depending on how many times the all() must ask AWS for next bucket. 

Instead check creation_date: if it is None then it doesn't exist:

import boto3
s3 = boto3.resource('s3')
print(
    "Bucket does not exist" 
    if s3.Bucket('priyajdm').creation_date is None 
    else 
    "Bucket exists")

---

@schollii, that is correct, s3.bucket.all() will be an expensive query to run all the time. One can filter by creation_date, this will be easier.