Cuallee features

[butterlyn]

Hi,

Was wondering if it's worth looking through the Polars checks implemented in the Python library cuallee to see if they're worth including in Field?

[lmmx]

Links: (cuallee / docs)

Is there anything in particular you had in mind from it for Patito? At a glance it looks like:

• Introducing the concept of warnings (Pydantic validations raise ValidationErrors not warnings)
• Rule: a predicate which some percentage must pass (this seems in-keeping with Patito's expansion of scalar-valued validations to column-wise checks, e.g. column-wise value uniqueness)
• It's mentioned here that full support is only in PySpark (for "Control" entities)

I also see it supports Polars

Can you share any more about your experience using it with Polars?

[canimus]

Hi, maintainer of cuallee here. Even when the documentation is mostly up to date with the Check interface of cuallee, the Control interface lacks some love. In any case, just wanted to say is that it does support polars for example:

import polars as pl
from cuallee import Control
df = pl.DataFrame({"A":[1,2,3,4,5]})
Control.completeness(df)
# ========================================
shape: (1, 12)
┌─────┬───────────┬───────────┬─────────┬────────┬───────────┬───────┬──────┬───────────┬──────────┬──────────┬────────┐
│ id  ┆ timestamp ┆ check     ┆ level   ┆ column ┆ rule      ┆ value ┆ rows ┆ violation ┆ pass_rat ┆ pass_thr ┆ status │
│ --- ┆ ---       ┆ ---       ┆ ---     ┆ ---    ┆ ---       ┆ ---   ┆ ---  ┆ s         ┆ e        ┆ eshold   ┆ ---    │
│ i64 ┆ str       ┆ str       ┆ str     ┆ str    ┆ str       ┆ str   ┆ i64  ┆ ---       ┆ ---      ┆ ---      ┆ str    │
│     ┆           ┆           ┆         ┆        ┆           ┆       ┆      ┆ i64       ┆ f64      ┆ f64      ┆        │
╞═════╪═══════════╪═══════════╪═════════╪════════╪═══════════╪═══════╪══════╪═══════════╪══════════╪══════════╪════════╡
│ 1   ┆ 2024-09-2 ┆ Completen ┆ WARNING ┆ A      ┆ is_comple ┆ N/A   ┆ 5    ┆ 0         ┆ 1.0      ┆ 1.0      ┆ PASS   │
│     ┆ 8         ┆ ess       ┆         ┆        ┆ te        ┆       ┆      ┆           ┆          ┆          ┆        │
│     ┆ 08:27:32  ┆           ┆         ┆        ┆           ┆       ┆      ┆           ┆          ┆          ┆        │
└─────┴───────────┴───────────┴─────────┴────────┴───────────┴───────┴──────┴───────────┴──────────┴──────────┴────────┘