> ## Documentation Index
> Fetch the complete documentation index at: https://docs.coderabbit.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Pylint

> CodeRabbit's guide to Pylint.

[Pylint](https://pylint.pycqa.org/) is a static code analysis tool for Python or Jupiter Notebooks. It checks your Python code for errors, enforces a coding standard, and looks for code smells.

## Supported Files

Pylint will run on files with the following extensions:

* `*.py`
* `.ipynb` (using nbQA)

## Configuration

Pylint supports the following config files:

* `.pylintrc`
* `pylintrc`
* `.pylintrc.toml`
* `pylintrc.toml`

CodeRabbit will not run Pylint if no config file is found.

## What CodeRabbit runs

Pylint runs per-file in a sandbox. We validate the config before execution.

## Security policy and restrictions

* We skip if the config declares `init-hook`, which can execute arbitrary Python code at startup.

## When we skip Pylint

CodeRabbit will skip running Pylint when:

* No config file is found.
* The config contains `init-hook`.
* Pylint is already running in GitHub workflows.
* Config parsing fails or appears unsafe.

## Profile behavior

In **Chill** mode, Pylint filters out:

* Warnings and conventions
* `E0401` (Unable to import)
* `C0301` (Line too long)

In **Assertive** mode, all findings are reported.

## Features

Pylint can detect many issues such as:

* Coding standard violations (PEP8)
* Unused variables and imports
* Undefined variables
* Code smells and refactoring suggestions
* Error-prone constructs
* And many more

## Links

* [Pylint Official Website](https://pylint.pycqa.org/)
* [Pylint GitHub Repository](https://github.com/pylint-dev/pylint)
* [Pylint Documentation](https://pylint.pycqa.org/en/latest/)
* [Message Control](https://pylint.pycqa.org/en/latest/user_guide/message-control.html)
* [nbQA Documentation](https://github.com/nbQA-dev/nbQA)