What Does Region None Mean When Creating A Aws S3 Bucket?

I have just created a bucket with AWS CLI: aws s3 mb s3://new-bucket-created And then when listing all buckets in my S3 account with boto3: s3 = boto3.client('s3') response = s3.l

Solution 1:

Buckets in Region us-east-1 have a LocationConstraint of null .

https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/s3.html#S3.Client.get_bucket_location

To fix this, update your code

bucket_region = s3.get_bucket_location(Bucket=bucket_name).get('LocationConstraint', 'us-east-1') (this assumes LocationConstraint key doesn't actually exist in the response)

Or buckets.update({bucket_name: bucket_region or 'us-east-1'}), which will return the region if defined, else fallsthrough to the default value