for region in region_list:
    s3 = boto3.resource('s3', region)
    s3_client = boto3.client('s3', region)
        for bucket in s3.buckets.all():
            s3_bucket = bucket
            s3_bucket_name = s3_bucket.name
            response = s3_client.get_bucket_tagging(Bucket=s3_bucket_name)
            tagset = response['TagSet']
                if len(response['TagSet'])==0:
                    print "s3 bucket not have tags, adding tags"
                else:
                    pass

Traceback (most recent call last):
File "C:Python27ec2info.py", line 235, in <module>
response = s3_client.get_bucket_tagging(Bucket=s3_bucket_name)
File "C:Python27libsite-packagesbotocoreclient.py", line 314, in
_api_call
return self._make_api_call(operation_name, kwargs)
File "C:Python27libsite-packagesbotocoreclient.py", line 612, in
_make_api_call
raise error_class(parsed_response, operation_name)
ClientError: An error occurred (NoSuchTagSet) when calling the
GetBucketTagging operation: The TagSet does not exist