def METHOD_NAME(self, bucket):
    region_name = self._s3_client.meta.region_name
    params = {
        'Bucket': bucket
    }
    bucket_config = {'LocationConstraint': region_name}
    if region_name != 'us-east-1':
        params['CreateBucketConfiguration'] = bucket_config
    self._s3_client.create_bucket(**params)