A declarative, 🐻❄️-native data frame validation library.
active 2025-04-18 → 2026-08-03 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 473 days from 2025-04-18 to 2026-08-03. Pushes: 414 total, peak 22 in a day. Pull requests: 207 total, peak 12 in a day. Issues: 71 total, peak 7 in a day. Comments: 470 total, peak 20 in a day. Stars: 228 total, peak 24 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| borchero | 593 | 222 | 67 | 151 |
| AndreasAlbertQC | 225 | 80 | 20 | 66 |
| delsner | 152 | 39 | 13 | 49 |
| MoritzPotthoffQC | 73 | 31 | 9 | 19 |
| codecov[bot] | 72 | 0 | 0 | 72 |
| Copilot | 59 | 15 | 22 | 14 |
| github-actions[bot] | 48 | 0 | 34 | 14 |
| ytausch | 42 | 14 | 3 | 13 |
| jjurm | 19 | 3 | 3 | 6 |
| DeflateAwning | 18 | 0 | 1 | 9 |
| dfrankland | 15 | 0 | 0 | 8 |
| dependabot[bot] | 14 | 0 | 14 | 0 |
| quant-ranger[bot] | 12 | 2 | 10 | 0 |
| heshamdar | 10 | 0 | 1 | 5 |
| gab23r | 10 | 0 | 3 | 3 |
| FrithjofWinkelmannQC | 9 | 1 | 1 | 4 |
| jhall-bp | 5 | 0 | 2 | 2 |
| frewsxcv | 5 | 0 | 1 | 2 |
| runkelcorey | 5 | 0 | 0 | 3 |
| brendancooley | 4 | 0 | 0 | 4 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#282cjw2962026-05-27 06:48`ValidationError` for `primary_key` failure could be a lot more helpful
- Pull request#345quant-ranger[bot]2026-05-25 00:29
- Issue comment#344codecov[bot]2026-05-24 18:40fix: Correctly create pyarrow dictionary for enums
- Issue#228borchero2026-05-19 06:34Feature Request: Support Iceberg
- Pull request#338dependabot[bot]2026-05-04 19:29
- Issue comment#339codecov[bot]2026-05-04 05:43chore: Update pixi lockfile
- Pull request#335gab23r2026-04-27 10:04
- Pull request#334github-actions[bot]2026-04-24 16:30
- Issue comment#327codecov[bot]2026-04-14 09:34build(deps): Bump rand from 0.9.2 to 0.9.3
- Pull request#327dependabot[bot]2026-04-14 03:31
- Issue comment#324borchero2026-04-09 21:52[WIP] Convert dy.Schema to pydantic model
- Pull request#322github-actions[bot]2026-04-09 01:05
- Issue comment#321codecov[bot]2026-04-08 14:48docs: Fix skills path
- Issue#319gab23r2026-04-08 09:01Feature Request: `dy.DataFrame` Support in Collections
- Issue#162linear[bot]2026-04-07 02:07Docs Request: "Features" page about the `dy.Collection` type
- Issue#314gab23r2026-04-03 08:46Bug: Roundtrip a collection with parquet fails with `dy.Any`
- Issue comment#313borchero2026-04-02 17:48Feature Request: `unique=True` column constraint
- Issue comment#312codecov[bot]2026-04-01 15:13chore: Move `SKILL.md` to subdirectory
- Pull request#305Copilot2026-03-26 13:45
- Pull request#305Copilot2026-03-26 13:45
- Pull request#304github-actions[bot]2026-03-26 10:49
- Issue comment#299Copilot2026-03-18 22:30chore: Bump polars to v1.39
- Pull request#297quant-ranger[bot]2026-03-16 00:14
- Issue#296DeflateAwning2026-03-10 03:03Feature Request: Add an argument to `FailureInfo.write_parquet(only_invalid_rules: bool = False)`
- Issue comment#294codecov[bot]2026-03-05 09:54Feat: Add `dy.infer_schema`
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 228 stars here means stars gained during the window, not the repo's star count.