researchuvpoetrypackaging

uv vs Poetry — 2026-06-30

Current versions

uv 0.11.26 (Jun 30, 2026) — https://github.com/astral-sh/uv/releases
Poetry 2.4.1 (May 9, 2025) — https://github.com/python-poetry/poetry/releases
- No 2026 Poetry release найдено — gap >13 months

Big news 2026

OpenAI купили Astral (создателей uv) — 19 марта 2026

Источник: https://openai.com/index/openai-to-acquire-astral/ (2026-03-19)
Astral founder Charlie Marsh: "We'll keep building in the open, alongside our community — and for the broader Python ecosystem"
Closing subject to regulatory approval; до тех пор Astral operates independently
Что это значит: uv теперь имеет серьёзную корпоративную поддержку — снижает риск abandonment

Market signals

JetBrains Python Developers Survey 2024 (latest published)

Environment isolation: venv 62%, virtualenv 25%, Conda 19%, Poetry 18%, uv 11%, Pipenv 8%
Dependency management: pip 74%, Poetry 20%, Conda 18%, uv 12%, pip-tools 9%, Pipenv 8%
"uv hitting 11% в свой первый год — notable achievement"

JetBrains "State of Python 2025" (Aug 2025)

"uv jumped incredibly from 0% to 11% the year it was introduced (and that growth has demonstrably continued to surge in 2025)"

PyPI downloads

uv: ~75M monthly downloads
Poetry: ~66M monthly downloads
uv overtook Poetry в 2026

NOT FOUND: JetBrains Python Developers Survey 2025/2026 full results — только 2024 numbers + Aug 2025 summary blog post.

Крупные проекты на uv

FastAPI — uses uv для dependency management (uv.lock, dependency groups, sync, CI/CD). PyPI uploads via uv 0.11.18
Apache Airflow — uv workspace monorepo + pyproject.toml. Cited как один из крупнейших OSS monorepos на uv

NOT FOUND evidence о Django, pandas, scikit-learn, numpy, Pydantic, Polars, LangChain, HuggingFace переключении на uv для own dev tooling. Они installable через uv, но migration announcement не найден.

Known production issues с uv (2026)

Lockfile reproducibility

Renovate-style bots обновляют pyproject.toml без uv.lock → inconsistencies
Optional extras не регенерируются в uv.lock ([google] extra never locked → uv lock --check fails)
Local editable paths: скрипты могут silently run with stale transitive deps даже с --locked
exclude-newer mismatch между host и container

Private index / enterprise

Default first-index dependency-confusion — friction в enterprises с internal versions of public packages
UV_INDEX + uv add bug (March 2026) — пишет неправильный pinning
Не пинит package к default PyPI через tool.uv.sources без reconfiguring PyPI как custom default

Plugin ecosystem

uv не имеет plugin system — "Features ship in the binary or not at all"
Нет equivalent для poetry-dynamic-versioning, Docker integration plugins, etc.
Community uv-dynamic-versioning существует, но не работает с uv build backend

Monorepo / workspace

Не может uv sync весь workspace cleanly
Virtual root нужно явно name'ить distinct from members
Не enforces import isolation между workspace members
Нет native "affected tests only" tooling

Стабильность

uv НЕ достиг 1.0 — current 0.11.26
Official policy: "uv is widely used in production and is stable software"
Versioning: minor bump = breaking change, patch = bug fixes
uv.lock schema is part of public API
Internal Rust crates (versioned 0.0.x) — no stability guarantees