| # Copyright 2022 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| |
| class Address(bytes): |
| |
| def __new__(cls, address): |
| if type(address) is bytes: |
| address_bytes = address |
| elif type(address) is str: |
| address_bytes = bytes.fromhex(address.replace(':', '')) |
| else: |
| raise ValueError('Invalid address format') |
| |
| if len(address_bytes) != 6: |
| raise ValueError('Invalid address length') |
| |
| return bytes.__new__(cls, address_bytes) |
| |
| def __str__(self): |
| return ':'.join([f'{x:02X}' for x in self]) |