The Best 56 Python Linters & Style Checkers Libraries

Static type checker for Python Speed Pyright is a fast type checker meant for large Python source bases. It can run in a “watch” mode and performs fas

Look for the bare necessities, the simple bare necessities. Forget about your worries and your strife. — The Jungle Book.

Darglint A functional docstring linter which checks whether a docstring's description matches the actual function/method implementation. Darglint expe

Pyre is a performant type checker for Python compliant with PEP 484. Pyre can analyze codebases with millions of lines of code incrementally – providi

"Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live." ― John F. Woods coala provides a

flake8-bugbear A plugin for Flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycode

Pyflakes A simple program which checks Python source files for errors. Pyflakes analyzes programs and detects various errors. It works by parsing the

Nitpick Flake8 plugin to enforce the same tool configuration (flake8, isort, mypy, Pylint...) across multiple Python projects. Useful if you maintain

reorder_python_imports Tool for automatically reordering python imports. Similar to isort but uses static analysis more. Installation pip install reor

Pylama Code audit tool for Python and JavaScript. Pylama wraps these tools: pycodestyle (formerly pep8) © 2012-2013, Florent Xicluna; pydocstyle (form

wemake-python-styleguide Welcome to the strictest and most opinionated python linter ever. wemake-python-styleguide is actually a flake8 plugin with s

coc-pyright Pyright extension for coc.nvim Install :CocInstall coc-pyright Note: Pyright may not work as expected if can't detect project root correct

pytype - 🦆 ✔ Pytype checks and infers types for your Python code - without requiring type annotations. Pytype can: Lint plain Python code, flagging c

PyMXS Stubs generator What Pymxs, the 3DsMax bindings of Maxscript to Python doe

pycodestyle (formerly called pep8) - Python style guide checker pycodestyle is a tool to check your Python code against some of the style conventions

Pycharm External Tools Extentions to Pycharm code formatting tools. Currently supported are flake8 and black on a selected code block. Usage Flake8 [P

flake8-comprehensions A flake8 plugin that helps you write better list/set/dict comprehensions. Requirements Python 3.6 to 3.9 supported. Installation

Mypy: Optional Static Typing for Python Got a question? Join us on Gitter! We don't have a mailing list; but we are always happy to answer questions o

Gramformer Human and machine generated text often suffer from grammatical and/or typographical errors. It can be spelling, punctuation, grammatical or

check-manifest Are you a Python developer? Have you uploaded packages to the Python Package Index? Have you accidentally uploaded broken packages with

THE PROJECT IS ARCHIVED Forks: https://github.com/orsinium/forks It's a Flake8 wrapper to make it cool. Lint md, rst, ipynb, and more. Shareable and r

pydocstyle - docstring style checker pydocstyle is a static analysis tool for checking compliance with Python docstring conventions. pydocstyle suppor

parso - A Python Parser Parso is a Python parser that supports error recovery and round-trip parsing for different Python versions (in multiple Python

Flake8 Flake8 is a wrapper around these tools: PyFlakes pycodestyle Ned Batchelder's McCabe script Flake8 runs all the tools by launching the single f

Flake8 Extension to lint for quotes. Major update in 2.0.0 We automatically encourage avoiding escaping quotes as per PEP 8. To disable this, use --no

flake8-import-order A flake8 and Pylama plugin that checks the ordering of your imports. It does not check anything else about the imports. Merely tha

README for Pylint - https://pylint.pycqa.org/ Professional support for pylint is available as part of the Tidelift Subscription. Tidelift gives softwa

aspy.refactor_imports Utilities for refactoring imports in python-like syntax. Installation pip install aspy.refactor_imports Examples aspy.refactor_i

absolufy-imports A tool and pre-commit hook to automatically convert relative imports to absolute. Installation $ pip install absolufy-imports Usage a

flake8-eradicate flake8 plugin to find commented out (or so called "dead") code. This is quite important for the project in a long run. Based on eradi

Introduction hacking is a set of flake8 plugins that test and enforce the OpenStack StyleGuide Hacking pins its dependencies, as a new release of some

mypy-protobuf: Generate mypy stub files from protobuf specs We just released a new major release mypy-protobuf 2. on 02/02/2021! It includes some back

PEP 8 Naming Conventions Check your code against PEP 8 naming conventions. This module provides a plugin for flake8, the Python code checker. (It repl

pylint-django About pylint-django is a Pylint plugin for improving code analysis when analysing code using Django. It is also used by the Prospector t

Sentinels This is a reference implementation of a utility for the definition of sentinel values in Python. This also includes a draft PEP for the incl

SQLAlchemy 2 Stubs These are PEP-484 typing stubs for SQLAlchemy 1.4 and 2.0. They are released concurrently along with a Mypy extension which is desi

Second Mate An open-source, mini imitation of GitHub Copilot using EleutherAI GPT-Neo-2.7B (via Huggingface Model Hub) for Emacs. This is a much small

Pycycle: Find and fix circular imports in python projects Pycycle is an experimental project that aims to help python developers fix their circular de

autoflake8 Introduction autoflake8 removes unused imports and unused variables from Python code. It makes use of pyflakes to do this. autoflake8 also

flake8-force Flake8 extension to provide force-check option. When this option is enabled, flake8 performs all checks even if the target file cannot be

Mypy type stubs for NumPy, pandas, and Matplotlib This is a PEP-561-compliant stub-only package which provides type information for matplotlib, numpy

mylint My really simple rendition of how a linter works. This original version was written for my AST article. Since then I've added tests and turned

Flake8 meet isort Use isort to check if the imports on your python files are sorted the way you expect. Add an .isort.cfg to define how you want your

Flake8 Builtins plugin Check for python builtins being used as variables or parameters. Imagine some code like this: def max_values(list, list2):

flake8-black Introduction This is an MIT licensed flake8 plugin for validating Python code style with the command line code formatting tool black. It

pandas-vet pandas-vet is a plugin for flake8 that provides opinionated linting for pandas code. It began as a project during the PyCascades 2019 sprin

flake8-useless-assert flake8 plugin to catch useless assert statements Download or install on the PyPI page Violations Code Description Example ULA001

bellybutton bellybutton is a customizable, easy-to-configure linting engine for Python. What is this good for? Tools like pylint and flake8 provide, o

flake8-bandit Automated security testing built right into your workflow! You already use flake8 to lint all your code for errors, ensure docstrings ar

✨ Linty Fresh ✨ Keep your codebase sparkly clean with the power of LINT! Linty Fresh parses lint errors and report them back to GitHub as comments on

imptools Tools for improving Python imports. Installation pip3 install imptools Overview Detailed docs import_path Import a module from any path on th

Konfsave Konfsave is a config manager. That is, it allows you to save, back up, and easily switch between different (per-user) system configurations.

Flake8 Extension to enforce better comma placement. Usage If you are using flake8 it's as easy as: pip install flake8-commas Now you can avoid those a

Imhotep, the peaceful builder. What is it? Imhotep is a tool which will comment on commits coming into your repository and check for syntactic errors