Most downloaded
openai
24.5M est.
Start here when you want the strongest reuse signal in the Python ecosystem.
Most starred package
openai
244.8K stars
GitHub stars tell you what is visible, not necessarily what is most embedded.
Adoption-to-visibility gap
openai
24.5M est.
A high ratio often means the package is more operationally important than its public mindshare suggests.
Quiet infrastructure
openai
244.8K stars
High Python usage with less headline visibility.
Ranked by estimated weekly PyPI downloads ยท Source: PyPI (estimated)
| # | Package | Stars | ๐ฅ Downloads |
|---|---|---|---|
| 1 | openaiโ๏ธ Production The official Python library for the openai API | 244.8K | 24.5M est. |
| 2 | anthropicโ๏ธ Production The official Python library for the anthropic API | 244.8K | 24.5M est. |
| 3 | richโ๏ธ Production Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal | 190.6K | 19.1M est. |
| 4 | langchainโ๏ธ Production Building applications with LLMs through composability | 182.9K | 18.3M est. |
| 5 | transformersโ๏ธ Production Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training. | 165.2K | 16.5M est. |
| 6 | pytorchโ๏ธ Production | 164.9K | 16.5M est. |
| 7 | gradioโ๏ธ Production Python library for easily interacting with trained machine learning models | 164.9K | 16.5M est. |
| 8 | pydanticโ๏ธ Production Data validation using Python type hints | 146.2K | 14.6M est. |
| 9 | numpyโ๏ธ Production Fundamental package for array computing in Python | 102.9K | 10.3M est. |
| 10 | fastapiโ๏ธ Production FastAPI framework, high performance, easy to learn, fast to code, ready for production | 102.3K | 10.2M est. |
| 11 | uvicornโ๏ธ Production The lightning-fast ASGI server. | 102.3K | 10.2M est. |
| 12 | clickโ๏ธ Production Composable command line interface toolkit | 96.6K | 9.7M est. |
| 13 | djangoโ๏ธ Production A high-level Python web framework that encourages rapid development and clean, pragmatic design. | 90.8K | 9.1M est. |
| 14 | tensorflowโ๏ธ Production TensorFlow is an open source machine learning framework for everyone. | 83.1K | 8.3M est. |
| 15 | notebookโ๏ธ Production Jupyter Notebook - A web-based notebook environment for interactive computing | 80.6K | 8.1M est. |
| 16 | requestsโ๏ธ Production Python HTTP for Humans. | 80.4K | 8M est. |
| 17 | flaskโ๏ธ Production A simple framework for building complex web applications. | 74.7K | 7.5M est. |
| 18 | pandasโ๏ธ Production Powerful data structures for data analysis, time series, and statistics | 73.6K | 7.4M est. |
| 19 | matplotlibโ๏ธ Production Python plotting package | 73.6K | 7.4M est. |
| 20 | scikit-learnโ๏ธ Production A set of python modules for machine learning and data mining | 67.2K | 6.7M est. |
| 21 | streamlitโ๏ธ Production A faster way to build and share data apps | 45.7K | 4.6M est. |
| 22 | blackโ๏ธ Production The uncompromising code formatter. | 41.8K | 4.2M est. |
| 23 | redisโ๏ธ Production Python client for Redis database and key-value store | 37.3K | 3.7M est. |
| 24 | poetryโ๏ธ Production Python dependency management and packaging made easy. | 34.3K | 3.4M est. |
| 25 | seleniumโ๏ธ Production Official Python bindings for Selenium WebDriver | 31.4K | 3.1M est. |
| 26 | jupyterโ๏ธ Production Jupyter metapackage. Install all the Jupyter components in one go. | 31.3K | 3.1M est. |
| 27 | tqdmโ๏ธ Production Fast, Extensible Progress Meter | 31.3K | 3.1M est. |
| 28 | scipyโ๏ธ Production Fundamental algorithms for scientific computing in Python | 29.3K | 2.9M est. |
| 29 | ipythonโ๏ธ Production IPython: Productive Interactive Computing | 29.3K | 2.9M est. |
| 30 | celeryโ๏ธ Production Distributed Task Queue. | 28.9K | 2.9M est. |
| 31 | typerโ๏ธ Production Typer, build great CLIs. Easy to code. Based on Python type hints. | 28.8K | 2.9M est. |
| 32 | pipโ๏ธ Production The PyPA recommended tool for installing Python packages. | 25K | 2.5M est. |
| 33 | loguruโ๏ธ Production Python logging made (stupidly) simple | 24.1K | 2.4M est. |
| 34 | mypyโ๏ธ Production Optional static typing for Python | 20.6K | 2.1M est. |
| 35 | sqlalchemyโ๏ธ Production Database Abstraction Library | 18.3K | 1.8M est. |
| 36 | aiohttpโ๏ธ Production Async http client/server framework (asyncio) | 16.5K | 1.7M est. |
| 37 | httpxโ๏ธ Production The next generation HTTP client. | 15.9K | 1.6M est. |
| 38 | pytestโ๏ธ Production pytest: simple powerful testing with Python | 14.5K | 1.4M est. |
| 39 | pillowโ๏ธ Production Python Imaging Library (fork) | 13.8K | 1.4M est. |
| 40 | gunicornโ๏ธ Production WSGI HTTP Server for UNIX | 10.7K | 1.1M est. |
| 41 | cryptographyโ๏ธ Production cryptography is a package which provides cryptographic recipes and primitives to Python developers. | 10K | 1M est. |
| 42 | boto3โ๏ธ Production The AWS SDK for Python | 9.9K | 990.1K est. |
| 43 | python-dotenvโ๏ธ Production Read key-value pairs from a .env file and set them as environment variables | 8.9K | 887.3K est. |
| 44 | beautifulsoup4โ๏ธ Production Screen-scraping library | 5.7K | 565.4K est. |
| 45 | alembicโ๏ธ Production A database migration tool for SQLAlchemy. | 4.4K | 438.9K est. |
| 46 | tomlโ๏ธ Production Python Library for Tom's Obvious, Minimal Language | 4.1K | 410K est. |
| 47 | pyyamlโ๏ธ Production YAML parser and emitter for Python | 2.9K | 294.2K est. |
| 48 | bcryptโ๏ธ Production Modern password hashing for your software and your servers | 1.5K | 150.3K est. |
| 49 | comprehensive password hashing framework supporting over 30 schemes | 194 | 19.4K est. |
The top of PyPI often blends data tooling, web frameworks, notebook-era staples, infrastructure helpers, and automation libraries that are deeply embedded in production systems. That mix is exactly why the table is valuable: it shows which packages developers keep returning to, even when broader community conversation is happening elsewhere.