🏆 A ranked list of awesome python developer tools and libraries. Updated weekly.
This curated list contains 250 awesome open-source projects with a total of 540K stars grouped into 15 categories. All projects are ranked by a project-quality score, which is calculated based on various metrics automatically collected from GitHub and different package managers. If you like to add or update projects, feel free to open an issue, submit a pull request, or directly edit the projects.yaml. Contributions are very welcome!
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- Linters & Style Checkers 42 projects
- Code Formatters 6 projects
- Code Refactoring 18 projects
- Code Security 7 projects
- Virtual Environments 8 projects
- Dependency & Package Mangers 10 projects
- Code Metrics & Complexity 6 projects
- Logging 19 projects
- Documentation 25 projects
- Debugging Tools 13 projects
- Testing Tools 43 projects
- Code Packaging 15 projects
- Build Tools 14 projects
- System Monitoring & Profiling 15 projects
- AST Tools 5 projects
- Others 1 projects
- 🥇🥈🥉 Combined project-quality score
- ⭐️ Star count from GitHub
- 🐣 New project (less than 6 months old)
- 💤 Inactive project (6 months no activity)
- 💀 Dead project (12 months no activity)
- 📈📉 Project is trending up or down
- ➕ Project was recently added
- ❗️ Warning (e.g. missing/risky license)
- 👨💻 Contributors count from GitHub
- 🔀 Fork count from GitHub
- 📋 Issue count from GitHub
- ⏱️ Last update timestamp on package manager
- 📥 Download count from package manager
- 📦 Number of dependent projects
Flake8 related project
Pytest related projectPylint related project
Sphinx related project
MkDocs related project
pycodestyle (🥇33 · ⭐ 4.2K) - Simple Python style checker in one Python file. ❗️Saxpath
pydocstyle (🥈28 · ⭐ 740 · 📉) - docstring style checker. MIT
flake8-bugbear (🥈28 · ⭐ 500) - A plugin for Flake8 finding likely bugs and design problems.. MIT 
pyre-check (🥈27 · ⭐ 5.2K) - Performant type-checking for python. MIT
wemake-python-styleguide (🥈27 · ⭐ 1.4K) - The strictest and most opinionated python linter ever!. MIT
pylint-django (🥈27 · ⭐ 440) - Pylint plugin for improving code analysis for when.. ❗️GPL-2.0 
coala (🥈26 · ⭐ 3.1K · 💤) - coala provides a unified command-line interface for linting and.. ❗️AGPL-3.0
check-manifest (🥈25 · ⭐ 220) - Tool to check the completeness of MANIFEST.in for Python packages. MIT
mypy-protobuf (🥉24 · ⭐ 310) - open source tools to generate mypy stubs from protobufs. Apache-2
darglint (🥉24 · ⭐ 270) - A python documentation linter which checks that the docstring description.. MIT
flake8-comprehensions (🥉24 · ⭐ 240) - A flake8 plugin to help you write better.. MIT
flake8-import-order (🥉24 · ⭐ 230) - Flake8 plugin that checks import order against.. ❗️LGPL-3.0
flake8-quotes (🥉24 · ⭐ 120 · 💤) - Flake8 extension for checking quotes in python. MIT
data-science-types (🥉23 · ⭐ 180) - Mypy stubs, i.e., type information, for numpy, pandas.. Apache-2
flake8-isort (🥉23 · ⭐ 99) - flake8 plugin that integrates isort. ❗️GPL-2.0
flake8-eradicate (🥉22 · ⭐ 180) - Flake8 plugin to find commented out or dead code. MIT
flake8-builtins (🥉21 · ⭐ 58) - Check for python builtins being used as variables or.. ❗️GPL-2.0
pylint-flask (🥉21 · ⭐ 56) - A Pylint plugin to analyze Flask applications. ❗️GPL-2.0
flake8-black (🥉20 · ⭐ 82 · 💤) - flake8 plugin to run black for checking Python coding style. MIT
flake8-bandit (🥉19 · ⭐ 57) - Automated security testing using bandit and flake8. MIT
flake8-mypy (🥉18 · ⭐ 110 · 💤) - A plugin for flake8 integrating Mypy. MIT
pandas-vet (🥉18 · ⭐ 90) - A plugin for Flake8 that checks pandas code. MIT
bellybutton (🥉16 · ⭐ 200) - Custom Python linting through AST expressions. MIT
linty_fresh (🥉13 · ⭐ 180) - Surface lint errors during code review. Apache-2 mypy
Show 6 hidden projects...
- pep8-naming (🥈26 · ⭐ 280) - Naming Convention checker for Python.
❗️Saxpath - pylama (🥉24 · ⭐ 760 · 💀) - Code audit tool for python.
❗️LGPL-3.0 - flake8-commas (🥉23 · ⭐ 120 · 💀) - Flake8 extension for enforcing trailing commas in python.
MIT - imhotep (🥉18 · ⭐ 210 · 💀) - A static-analysis bot for Github.
MIT - yala (🥉17 · ⭐ 8) - Yet Another Linter Aggregator.
MIT - pycycle (🥉14 · ⭐ 270 · 💀) - Tool for pinpointing circular imports in Python. Find cyclic imports..
MIT
autopep8 (🥈33 · ⭐ 3.7K) - A tool that automatically formats Python code to conform to the PEP 8.. MIT
docformatter (🥉23 · ⭐ 200) - Formats docstrings to follow PEP 257. MIT
Show 1 hidden projects...
jedi (🥇36 · ⭐ 4.7K) - Awesome autocompletion, static analysis and refactoring library for python. MIT
rope (🥇29 · ⭐ 1.1K) - a python refactoring library. ❗️LGPL-3.0
MonkeyType (🥈23 · ⭐ 3.3K) - A system for Python that generates static type annotations by.. BSD-3
pyupgrade (🥉22 · ⭐ 790) - A tool (and pre-commit hook) to automatically upgrade syntax for newer.. MIT
baron (🥉22 · ⭐ 250 · 💤) - IDE allow you to refactor code, Baron allows you to write.. ❗️LGPL-3.0
pyannotate (🥉20 · ⭐ 1.2K) - Auto-generate PEP-484 annotations. Apache-2
add-trailing-comma (🥉20 · ⭐ 160) - A tool (and pre-commit hook) to automatically add trailing.. MIT
massedit (🥉18 · ⭐ 87) - Programmatically edit text files with Python. Useful for source to source.. MIT
Show 4 hidden projects...
- redbaron (🥈23 · ⭐ 510 · 💀) - Bottom-up approach to refactoring in python.
❗️LGPL-3.0 - eradicate (🥉20 · ⭐ 110) - Removes commented-out code from Python files.
❗️Saxpath - unify (🥉19 · ⭐ 53 · 💀) - Modifies strings to all use the same quote where possible.
MIT - pep8ify (🥉16 · ⭐ 110 · 💀) - A library that modifies python source code to conform to pep8.
Apache-2
bandit (🥇32 · ⭐ 3K) - Bandit is a tool designed to find common security issues in Python code. Apache-2
safety (🥈27 · ⭐ 950) - Safety checks your installed dependencies for known security vulnerabilities. MIT
dlint (🥉20 · ⭐ 320) - Dlint is a tool for encouraging best coding practices and helping ensure.. BSD-3
Show 2 hidden projects...
- pyarmor (🥉23 · ⭐ 840) - A tool used to obfuscate python scripts, bind obfuscated scripts..
❗️SGI-B-2.0 - dodgy (🥉21 · ⭐ 88 · 💀) - Looks at Python code to search for things which look dodgy such as..
MIT
virtualenv (🥈32 · ⭐ 3.8K) - Virtual Python Environment builder. MIT
dh-virtualenv (🥉15 · ⭐ 1.4K) - Python virtualenvs in Debian packages. ❗️GPL-2.0
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GitHub (👨💻 55 · 🔀 150 · 📋 180 - 12% open · ⏱️ 31.12.2020):
git clone https://github.com/spotify/dh-virtualenv
Show 4 hidden projects...
- vex (🥉19 · ⭐ 370 · 💀) - Run a command in the named virtualenv.
MIT - pyenv-virtualenv (🥉17 · ⭐ 4.1K · 💀) - a pyenv plugin to manage virtualenv (a.k.a. python-..
MIT - pyenv-installer (🥉14 · ⭐ 2.5K · 💀) - This tool is used to install
pyenvand friends.MIT - pipenv-pipes (🥉12 · ⭐ 120 · 💀) - A PipEnv Environment Switcher.
MIT
pipreqs (🥉28 · ⭐ 3.2K · 💤) - pipreqs - Generate pip requirements.txt file based on imports of.. Apache-2
prospector (🥈27 · ⭐ 1.4K) - Inspects Python source files and provides information about.. ❗️GPL-2.0
wily (🥉19 · ⭐ 650) - A Python application for tracking, reporting on timing and complexity in.. Apache-2
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rich (🥇32 · ⭐ 21K) - Rich is a Python library for rich text and beautiful formatting in the terminal. MIT
sentry-sdk (🥈31 · ⭐ 840) - The new Python SDK for Sentry.io. BSD-2
tabulate (🥈30 · ⭐ 690 · 💤) - Pretty-print tabular data in Python, a library and a command-line.. MIT
python-json-logger (🥈29 · ⭐ 900) - Json Formatter for the standard python logger. BSD-2
progressbar2 (🥉27 · ⭐ 680) - Progressbar 2 - A progress bar for Python 2 and Python 3 - pip.. BSD-3
python-coloredlogs (🥉27 · ⭐ 400) - Colored terminal output for Python's logging module. MIT
better-exceptions (🥉24 · ⭐ 3.9K) - Pretty and useful exceptions in Python, automatically. MIT
alive-progress (🥉24 · ⭐ 1.8K) - A new kind of Progress Bar, with real time throughput, eta and.. MIT
stackprinter (🥉24 · ⭐ 1.1K · 📈) - Debugging-friendly exceptions for Python. MIT
rebound (🥉23 · ⭐ 3.5K) - Command-line tool that instantly fetches Stack Overflow results when an.. MIT
PrettyErrors (🥉19 · ⭐ 1.9K) - Prettify Python exception output to make it legible. MIT
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- logbook (🥈30 · ⭐ 1.4K · 💀) - A cool logging replacement for Python.
BSD-3 - prettytable (🥉28 · ⭐ 370) - Display tabular data in a visually appealing ASCII table..
❗️BSD-1-Clause
sphinx_rtd_theme (🥇33 · ⭐ 3.6K) - Sphinx theme for readthedocs.org. MIT 
mkdocs-material (🥈32 · ⭐ 5.5K) - A Material Design theme for MkDocs. MIT 
sphinx-autodoc-typehints (🥈26 · ⭐ 300) - Type hints support for the Sphinx autodoc extension. MIT
sphinx-autobuild (🥈26 · ⭐ 300) - Watch a Sphinx directory and rebuild the documentation.. MIT
interrogate (🥉22 · ⭐ 240) - Explain yourself! Interrogate a codebase for docstring coverage. MIT
mkdocstrings (🥉20 · ⭐ 280) - Automatic documentation from sources, for MkDocs. ISC
mkdocs-pdf-export-plugin (🥉20 · ⭐ 170 · 💤) - An MkDocs plugin to export content pages as PDF files. MIT
mkdocs-awesome-pages-plugin (🥉20 · ⭐ 130) - An MkDocs plugin that simplifies configuring page.. MIT
blacken-docs (🥉19 · ⭐ 150) - Run `black` on python code blocks in documentation files. MIT
sphinx-markdown-builder (🥉18 · ⭐ 92) - sphinx builder that outputs markdown files. MIT
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- alabaster (🥈29 · ⭐ 590 · 💀) - Lightweight, configurable Sphinx theme. Now the Sphinx..
BSD-3 - sphinx-bootstrap-theme (🥈26 · ⭐ 580 · 💀) - Sphinx Bootstrap Theme.
MIT - releases (🥉22 · ⭐ 150 · 💀) - A powerful Sphinx changelog-generating extension.
BSD-2 - pycco (🥉21 · ⭐ 740 · 💀) - Literate-style documentation generator.
MIT - mkdocs-with-pdf (🥉18 · ⭐ 32) - Generate a single PDF file from MkDocs repository.
MIT - mkdocs-git-revision-date-plugin (🥉18 · ⭐ 30) - MkDocs plugin for setting revision date from git per..
MIT - mkdocs-versioning (🥉17 · ⭐ 35) - A tool that allows for versioning sites built with mkdocs.
MIT - mkdocs-print-site-plugin (🥉14 · ⭐ 14 · 🐣) - MkDocs Plugin allowing your visitors to *File Print..
MIT
pyelftools (🥈27 · ⭐ 1.1K) - Parsing ELF and DWARF in Python. Unlicense
gdbgui (🥉23 · ⭐ 7.8K) - Browser-based frontend to gdb (gnu debugger). Add breakpoints, view.. ❗️GPL-3.0
python-hunter (🥉22 · ⭐ 580) - Hunter is a flexible code tracing toolkit. BSD-2
Birdseye (🥉19 · ⭐ 1.4K) - Graphical Python debugger which lets you easily view the values of all.. MIT
Show 2 hidden projects...
- pyrasite (🥉20 · ⭐ 2.5K · 💀) - Inject code into running Python processes.
❗️GPL-3.0 - python-manhole (🥉19 · ⭐ 300 · 💀) - Debugging manhole for python applications.
BSD-2
🔗 best-of-web-python - Testing ( ⭐ 990 · 🐣) - Testing libraries & tools for python web frameworks.
🔗 unittest - Unittest is a test framework included in the Python standard library.
robotframework (🥇33 · ⭐ 5.5K) - Generic automation framework for acceptance testing and RPA. Apache-2
hypothesis (🥇33 · ⭐ 4.9K) - Hypothesis is a powerful, flexible, and easy to use library for.. MPL-2.0
pytest-cov (🥇32 · ⭐ 950) - Coverage plugin for pytest. MIT 
pyautogui (🥈30 · ⭐ 4.8K) - A cross-platform GUI automation Python module for human beings. Used.. BSD-3
factory_boy (🥈30 · ⭐ 2.4K) - A test fixtures replacement for Python. MIT
pytest-mock (🥈30 · ⭐ 980) - Thin-wrapper around the mock package for easier use with pytest. MIT
pytest-xdist (🥈30 · ⭐ 660) - pytest plugin for distributed testing and loop-on-failures.. MIT
coveralls-python (🥈30 · ⭐ 450) - Show coverage stats online via coveralls.io. MIT
pytest-html (🥈30 · ⭐ 390) - Plugin for generating HTML reports for pytest results. MPL-2.0
pytest-asyncio (🥈28 · ⭐ 670) - Pytest support for asyncio. Apache-2
pytest-bdd (🥈27 · ⭐ 760 · 📈) - BDD library for the py.test runner. MIT
pytest-benchmark (🥉26 · ⭐ 710) - py.test fixture for benchmarking code. BSD-2
pytest-sugar (🥉26 · ⭐ 670) - a plugin for py.test that changes the default look and feel.. BSD-3
PyHamcrest (🥉26 · ⭐ 520) - Hamcrest matchers for Python. BSD-3
uiautomator (🥉25 · ⭐ 1.6K) - Python wrapper of Android uiautomator test tool. MIT
pytest-mypy (🥉25 · ⭐ 180) - Mypy static type checker plugin for Pytest. MIT
playwright-python (🥉24 · ⭐ 4K) - Python version of the Playwright testing and automation.. Apache-2
asv (🥉24 · ⭐ 560) - Airspeed Velocity: A simple Python benchmarking tool with web-based reporting. BSD-3
Mamba Test Runner (🥉24 · ⭐ 460) - The definitive testing tool for Python. Born under the banner.. MIT
pytest-randomly (🥉24 · ⭐ 270) - Pytest plugin to randomly order tests and control random.seed. MIT
pytest-testinfra (🥉23 · ⭐ 1.8K) - Testinfra test your infrastructures. Apache-2
pytest-testmon (🥉21 · ⭐ 460) - Selects tests affected by changed files. Continous.. ❗️AGPL-3.0
pytest-docker (🥉20 · ⭐ 190) - Docker-based integration tests. MIT
pytest-lazy-fixture (🥉20 · ⭐ 170 · 💤) - It helps to use fixtures in pytest.mark.parametrize. MIT
pytest-plugins (🥉14 · ⭐ 360 · 💤) - A grab-bag of nifty pytest plugins. MIT
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GitHub (👨💻 46 · 🔀 56 · 📋 87 - 41% open · ⏱️ 11.04.2020):
git clone https://github.com/man-group/pytest-plugins
Show 6 hidden projects...
- nose (🥈30 · ⭐ 1.3K · 💀) - nose is nicer testing for python.
❗️LGPL-2.1+ - pytest-watch (🥉25 · ⭐ 540 · 💀) - Local continuous test runner with pytest and watchdog.
MIT - assertpy (🥉20 · ⭐ 250 · 💀) - Simple assertion library for unit testing in python with a fluent..
BSD-3 - pytest-datadir (🥉19 · ⭐ 130 · 💀) - pytest plugin for manipulating test data directories and..
MIT - fake2db (🥉17 · ⭐ 2K · 💀) - create custom test databases that are populated with fake data.
❗️GPL-2.0 - pytest-play (🥉16 · ⭐ 63 · 💀) - pytest plugin that let you automate actions and..
Apache-2
🔗 Python.org Packaging - An Overview of Packaging for Python.
pyinstaller (🥇31 · ⭐ 7.6K) - Freeze (package) Python programs into stand-alone executables. ❗️GPL-2.0
Nuitka (🥈27 · ⭐ 3.8K) - Nuitka is a Python compiler written in Python. It's fully compatible.. Apache-2
py2exe (🥈24 · ⭐ 160) - A distutils extension to create standalone Windows programs from Python code. MIT
shiv (🥈23 · ⭐ 1.1K) - shiv is a command line utility for building fully self contained Python.. BSD-2
cx_Freeze (🥉22 · ⭐ 640) - Create standalone executables from Python scripts, with the same.. Python-2.0
constructor (🥉19 · ⭐ 290) - tool for creating installers from conda packages. BSD-3
PyOxidizer (🥉15 · ⭐ 2.8K) - A modern Python application packaging and distribution tool. MPL-2.0
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GitHub (👨💻 28 · 🔀 100 · 📋 300 - 62% open · ⏱️ 18.01.2021):
git clone https://github.com/indygreg/PyOxidizer
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setuptools (🥇34 · ⭐ 1.3K) - Official project repository for the Setuptools build system. MIT
buildbot (🥈30 · ⭐ 4.5K) - Python-based continuous integration testing framework; your pull.. ❗️GPL-2.0
setuptools_scm (🥈28 · ⭐ 430) - the blessed package to manage your versions by scm tags. MIT
universal-build (🥉10 · ⭐ 5 · 🐣) - Universal build utilities for containerized build pipelines. MIT
Show 2 hidden projects...
Glances (🥇29 · ⭐ 18K) - Glances an Eye on your system. A top/htop alternative for.. ❗️LGPL-3.0
memory-profiler (🥈27 · ⭐ 2.7K) - Monitor Memory usage of Python code. BSD-3
Yappi (🥈27 · ⭐ 570) - Yet Another Python Profiler, but this time thread&coroutine&greenlet aware. MIT
line_profiler (🥉25 · ⭐ 3.5K) - Line-by-line profiling for Python. BSD-3
pyinstrument (🥉25 · ⭐ 2.5K) - Call stack profiler for Python. Shows you why your code is slow!. BSD-3
pympler (🥉25 · ⭐ 730) - Development tool to measure, monitor and analyze the memory behavior.. Apache-2
Scalene (🥉21 · ⭐ 3.6K) - Scalene: a high-performance, high-precision CPU and memory profiler.. Apache-2
Show 3 hidden projects...
Show 2 hidden projects...
- astor (🥈27 · ⭐ 550 · 💀) - Python AST read/write.
BSD-3 - astunparse (🥉26 · ⭐ 150 · 💀) - An AST unparser for Python.
BSD-3
pre-commit (🥇31 · ⭐ 5.4K) - A framework for managing and maintaining multi-language pre-commit.. MIT
- Best-of lists: Discover other best-of lists with awesome open-source projects on all kinds of topics.
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