A Python linter is a tool that analyzes your Python code to catch and report errors, bugs, stylistic errors, and suspicious constructs. This allows you to fix problems before executing your code.

There are several Python linters you can use. Here are some of them:

1. Pylint: This is a highly configurable linter. It has more checks than any other tool and it’s the most comprehensive. Pylint checks for coding standards, error detection, refactoring, and more. However, because it is so comprehensive, it can be a bit slow.

2. Flake8: This is a wrapper around PyFlakes, pycodestyle, and Ned Batchelder’s McCabe script. It is a good compromise between speed and the number of checks. Flake8 is popular because of its balance and its extensibility through plugins.

3. PyFlakes: This tool focuses only on logical errors in programs; it does not perform style checks. PyFlakes makes a great deal of effort to be fast, and for this reason, it doesn’t have as many features as other linters. However, if you’re looking for something lightweight and quick, this is a good option.

4. Black: While not strictly a linter, Black is a Python code formatter that can help to maintain consistent code style across your project. It automatically formats your code to fit the PEP 8 style guide.

5. Bandit: This is a tool designed to find common security issues in Python code. It was developed by the OpenStack Security Project. If you’re working on a project where security is a concern, Bandit could be a good addition to your toolkit.

6. Mypy: This is a static type checker for Python. If you’re using Python’s optional static typing, Mypy can be a helpful tool to catch type errors before runtime.