### The problem
Just updated core to 2023.8.1 and got a message that the integr…ation cannot be loaded. No devices are accessible and no options to reload or anything.
### Your device model
RT-A68U
### Firmware type
Stock
### Firmware version
3.0.0.4.386_51665
### Integration version with the issue
0.22.0
### Method of the integration installation
HACS
### What version and type of Home Assistant installation do you use
Operating System 10.4, Core 2023.8.1
### Is there anything useful in the logs?
```txt
Two log entries:
This error originated from a custom integration.
Logger: homeassistant.loader
Source: custom_components/asusrouter/const.py:8
Integration: AsusRouter (documentation, issues)
First occurred: 09:04:23 (1 occurrences)
Last logged: 09:04:23
Unexpected exception importing component custom_components.asusrouter
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/loader.py", line 813, in get_component
ComponentProtocol, importlib.import_module(self.pkg_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 940, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/config/custom_components/asusrouter/__init__.py", line 11, in <module>
from .const import ASUSROUTER, DOMAIN, PLATFORMS, STOP_LISTENER
File "/config/custom_components/asusrouter/const.py", line 8, in <module>
from asusrouter.util import converters
File "/usr/local/lib/python3.11/site-packages/asusrouter/__init__.py", line 30, in <module>
from .connection import Connection
File "/usr/local/lib/python3.11/site-packages/asusrouter/connection.py", line 26, in <module>
from asusrouter.const import (
SyntaxError: source code string cannot contain null bytes
Logger: homeassistant.setup
Source: loader.py:821
First occurred: 09:04:23 (1 occurrences)
Last logged: 09:04:23
Setup failed for custom integration asusrouter: Unable to import component: Exception importing custom_components.asusrouter
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/loader.py", line 813, in get_component
ComponentProtocol, importlib.import_module(self.pkg_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 940, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/config/custom_components/asusrouter/__init__.py", line 11, in <module>
from .const import ASUSROUTER, DOMAIN, PLATFORMS, STOP_LISTENER
File "/config/custom_components/asusrouter/const.py", line 8, in <module>
from asusrouter.util import converters
File "/usr/local/lib/python3.11/site-packages/asusrouter/__init__.py", line 30, in <module>
from .connection import Connection
File "/usr/local/lib/python3.11/site-packages/asusrouter/connection.py", line 26, in <module>
from asusrouter.const import (
SyntaxError: source code string cannot contain null bytes
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/setup.py", line 215, in _async_setup_component
component = integration.get_component()
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 821, in get_component
raise ImportError(f"Exception importing {self.pkg_path}") from err
ImportError: Exception importing custom_components.asusrouter
```
### Diagnostics information
_No response_
### Additional information
Only fix I've found is to roll back to Core 2023.8.0