# Aider chat conversation:
USER: I ran this command:
pre-commit run --all-files
And got this output:
isort....................................................................Passed
black....................................................................Passed
flake8...................................................................Failed
- hook id: flake8
- exit code: 1
aider/history.py:4:1: F401 'tiktoken' imported but unused
import tiktoken
^
aider/models/__init__.py:2:1: F401 '.openai.OpenAIModel' imported but unused
from .openai import OpenAIModel
^
aider/models/__init__.py:3:1: F401 '.openrouter.OpenRouterModel' imported but unused
from .openrouter import OpenRouterModel
^
aider/models/openrouter.py:26:33: E711 comparison to None should be 'if cond is None:'
if cached_model_details == None:
^
ASSISTANT: It seems like there are some unused imports and a comparison to None that is not following the Pythonic way. To fix these issues, we need to modify the following files:
1. `aider/history.py`
2. `aider/models/__init__.py`
3. `aider/models/openrouter.py`
Please add these files to the chat so I can propose the necessary changes.
USER: I added these *read-write* files: aider/history.py, aider/models/openrouter.py, aider/models/__init__.py
ASSISTANT: Great! Now, let's make the necessary changes to these files.
First, in `aider/history.py`, we need to remove the unused import `tiktoken`.
```python
aider/history.py
<<<<<<< HEAD
import tiktoken
=======
>>>>>>> updated
```
Next, in `aider/models/__init__.py`, we need to remove the unused imports `OpenAIModel` and `OpenRouterModel`.
```python
aider/models/__init__.py
<<<<<<< HEAD
from .openai import OpenAIModel
from .openrouter import OpenRouterModel
=======
>>>>>>> updated
```
Finally, in `aider/models/openrouter.py`, we need to change the comparison to None to use `is` instead of `==`.
```python
aider/models/openrouter.py
<<<<<<< HEAD
if cached_model_details == None:
=======
if cached_model_details is None:
>>>>>>> updated
```
These changes should resolve the issues reported by the `flake8` linter.
