pydantic

pypi package · declared by 431 of 2,343 sampled repositories · graph computed 2026-08-24

Counted from the runtime dependencies public repositories declare — not the resolved tree. A transitive dependency is a consequence; a declared one is a choice. Development dependencies are excluded because they repeat across every project in a language regardless of what is being built.

Declared with

ranked by association, not by count

Tools declared alongside this one, ranked by association strength
Declared with	Repositories	vs chance
httpx	142 of 2,343	0.50
uvicorn	144 of 2,343	0.50
pydantic-settings	88 of 2,343	0.49
fastapi	150 of 2,343	0.49
python-dotenv	134 of 2,343	0.45
pyyaml	130 of 2,343	0.42
rich	102 of 2,343	0.39
typer	66 of 2,343	0.39
openai	103 of 2,343	0.37
structlog	21 of 2,343	0.37
litellm	38 of 2,343	0.35
tenacity	43 of 2,343	0.35
aiohttp	52 of 2,343	0.35
python-multipart	55 of 2,343	0.34
anyio	20 of 2,343	0.34
apscheduler	17 of 2,343	0.34
sqlalchemy	42 of 2,343	0.33
aiofiles	33 of 2,343	0.33
pypdf	22 of 2,343	0.33
typing-extensions	44 of 2,343	0.33

Every pair above is counted from the same evidence: repo manifest.

Used instead

candidates · shares a neighbourhood and refuses to co-occur

No alternative measured. A pair qualifies only if it shares a neighbourhood and then fails to appear together against an expectation that it would — and almost everything that shares a neighbourhood does appear together. That is the test working, not a gap in the data: similarity alone would list this tool’s closest neighbours as alternatives, and most of them are things it is used with.