| # coding: utf-8 | |
| from __future__ import unicode_literals, division, absolute_import, print_function | |
| def fill_width(bytes_, width): | |
| """ | |
| Ensure a byte string representing a positive integer is a specific width | |
| (in bytes) | |
| :param bytes_: | |
| The integer byte string | |
| :param width: | |
| The desired width as an integer | |
| :return: | |
| A byte string of the width specified | |
| """ | |
| while len(bytes_) < width: | |
| bytes_ = b'\x00' + bytes_ | |
| return bytes_ |