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Agents tracked: 378 Downloads (7d): 244M down 5.7% GitHub stars: 8.4M VS Code installs: 151M Releases (7d): 407 Agent status: 1 with issues Updated Oct 10, 2026

PyYAML

YAML parser and emitter for reading and writing YAML configuration files.

Utilities PyPI MIT

Used in agent projects
385
3.0% of 12,697 public repos built with AI coding agents
Rank in utilities
#4 of 109
by use in those projects
Downloads
239M
PyPI, last 7 days, pyyaml
GitHub stars
2,954
last push Oct 7, 2026

How PyYAML is used

PyYAML is a dependency in 385 of the 12,697 public GitHub projects set up for AI coding agents that we scanned (3.0%), #4 of 109 in utilities. The most used alternative there is clsx. Projects that use it most often also use Pydantic (54.8%), python-dotenv (49.4%), Requests (47.5%).

Often used with PyYAML

Pydantic54.8% of PyYAML projects · 10.7× more than average
python-dotenv49.4% of PyYAML projects · 7.6× more than average
Requests47.5% of PyYAML projects · 8.9× more than average
NumPy41.8% of PyYAML projects · 10.9× more than average
Uvicorn36.4% of PyYAML projects · 8.5× more than average
FastAPI34.5% of PyYAML projects · 8.2× more than average
Rich33.2% of PyYAML projects · 17.4× more than average
Click31.4% of PyYAML projects · 17.9× more than average

By coding agent

Claude Code5.7% of projects set up for it
GitHub Copilot5.2% of projects set up for it
Cursor5.4% of projects set up for it
Gemini CLI5.9% of projects set up for it
OpenAI Codex4.5% of projects set up for it
OpenCode5.6% of projects set up for it
Devin Desktop5.8% of projects set up for it
Kiro4.1% of projects set up for it

Share of public repos configured for each agent that list PyYAML as a dependency.

Install

Packagepip install pyyaml
Main stacksPython (379), Next.js (4), Other (1), React Native / Expo (1)
Example projectsJosh-XT/AGiXT, learntocloud/learn-to-cloud-app, Kaggle/kaggle-environments, sidetrip-ai/ici-core, VoltCyclone/PCILeechFWGenerator

Alternatives to PyYAML

All utilities

Tool Used in agent projectsDownloads / wk GitHub starsLicense
clsx npm
Tiny utility for conditionally constructing className strings.
2,251 (17.7%) 126M 9,847 MIT
date-fns npm
Modern JavaScript date utility library with comprehensive formatting functions.
1,079 (8.5%) 97.6M 36.6K MIT
uuid npm
Generate RFC9562 compliant UUIDs for unique identifiers in applications.
454 (3.6%) 296M 15.3K MIT
Lodash npm
Modular utility library with methods for common programming tasks and data manipulation.
269 (2.1%) 162M 61.4K MIT
bn.js npm
Big number library for handling arbitrary-precision integers in JavaScript.
217 (1.7%) 62.1M 1,230 MIT
python-dateutil pypi
Extensions to Python's datetime module for advanced date and time manipulation.
165 (1.3%) 233M 2,638 Dual License
yaml npm
JavaScript YAML parser and stringifier with full spec compliance.
164 (1.3%) 179M 1,693 ISC
Nanoid npm
Tiny, secure, URL-friendly unique string ID generator for JavaScript.
161 (1.3%) 269M 27.1K MIT
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