Warn about PyPy being not actively developed by konstin · Pull Request #17643 · astral-sh/uv

3 min read Original article ↗

@konstin

It seems that PyPy is not being actively developed anymore and is phased out even by numpy (numpy/numpy#30416). There's no official statement from the project, but the numpy issue is from a PyPy developer. I added a warning to avoid users assuming PyPy properly supported and developed Python distribution.

@konstin added the documentation

Improvements or additions to documentation

label

Jan 21, 2026
Co-authored-by: Tomasz Kramkowski <tom@astral.sh>

@konstin

@konstin

tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request

Jan 27, 2026
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.9.26` → `0.9.27` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

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### Release Notes

<details>
<summary>astral-sh/uv (astral-sh/uv)</summary>

### [`v0.9.27`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0927)

[Compare Source](astral-sh/uv@0.9.26...0.9.27)

Released on 2026-01-26.

##### Python

- Upgrade Pyodide to 0.29.2 ([#&#8203;17652](astral-sh/uv#17652))
- Upgrade to GraalPy 25.0.2 ([#&#8203;17634](astral-sh/uv#17634))

##### Enhancements

- Add `-t` shortform for `--target` to `uv pip` subcommands ([#&#8203;17501](astral-sh/uv#17501))
- Add support for ROCm 7.0 and 7.1 accelerator backends ([#&#8203;17681](astral-sh/uv#17681))
- Further improve free-threading ABI incompatibility errors ([#&#8203;17491](astral-sh/uv#17491))
- Implement `uv pip freeze --exclude` flag ([#&#8203;17045](astral-sh/uv#17045))
- Improve warnings for `--system` and `--no-system` in `uv venv` ([#&#8203;17647](astral-sh/uv#17647))
- Make `uv pip compile` attempt to download a specified `--python-version` if it can. ([#&#8203;17249](astral-sh/uv#17249))
- Support Trusted Publishing with pyx ([#&#8203;17438](astral-sh/uv#17438))
- Fix JSON schema for `exclude-newer-package` ([#&#8203;17665](astral-sh/uv#17665))

##### Preview features

- Better detection for conflicting packages ([#&#8203;17623](astral-sh/uv#17623))
- Upgrade based on outdated build versions in `uv python upgrade` ([#&#8203;17653](astral-sh/uv#17653))

##### Bug fixes

- Change chocolatey system test to ensure uv uses the right python ([#&#8203;17533](astral-sh/uv#17533))
- Fix infinite loop when `SSL_CERT_FILE` is a directory ([#&#8203;17503](astral-sh/uv#17503))

##### Documentation

- Add cargo-xwin to the CONTRIBUTING guide ([#&#8203;17507](astral-sh/uv#17507))
- Fix typo in the documentation of UV\_PUBLISH\_INDEX ([#&#8203;17672](astral-sh/uv#17672))
- Move MSRV to platform support section ([#&#8203;17534](astral-sh/uv#17534))
- Update the testing instructions in the CONTRIBUTING guide ([#&#8203;17528](astral-sh/uv#17528))
- Use `--locked` to install `cargo-xwin` in guide ([#&#8203;17530](astral-sh/uv#17530))
- Warn about PyPy being unmaintained ([#&#8203;17643](astral-sh/uv#17643))
- docs: Correct gitlab-ci.yml to .gitlab-ci.yml ([#&#8203;17682](astral-sh/uv#17682))

##### Other changes

- Update MSRV to 1.91 ([#&#8203;17677](astral-sh/uv#17677))

</details>

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@blka blka mentioned this pull request

Mar 8, 2026

@konstin konstin changed the title Warn about PyPy being unmaintained Warn about PyPy being not actively developed

Mar 8, 2026

@konstin konstin changed the title Warn about PyPy being unmaintained Warn about PyPy being not actively developed

Mar 8, 2026