def create_bucket(self, bucket_name, region_name=None):
        """
        
        """
        s3_conn = self.get_conn()
        if not region_name:
            region_name = s3_conn.meta.region_name
        if region_name == 'us-east-1':
            self.get_conn().create_bucket(Bucket=bucket_name)
        else:
            self.get_conn().create_bucket(Bucket=bucket_name,
                                          CreateBucketConfiguration={
                                              'LocationConstraint': region_name
                                          })