Issues

• Failures on Polars 2: Model.examples(), and headerless read_csv with extra columns

  JakobGM/patito#168 · Filter by author JackKelly opened on Oct 7, 2026

• Model.DataFrame subclass is dropped on filter/select/with_columns with polars ≥ 1.44

  JakobGM/patito#167 · Filter by author vladvrabie-murmuras opened on Sep 8, 2026

• Support for dict[K,V]

  JakobGM/patito#165 · Filter by author danielgafni opened on Mar 30, 2026

• TypeError when joining Patito DataFrames

  JakobGM/patito#164 · Filter by author rebeccafair opened on Mar 19, 2026
  1

• read_csv test regression on polars 1.37

  JakobGM/patito#163 · Filter by author thomasaarholt opened on Feb 4, 2026

• Status of patito: Dead or Alive?

  JakobGM/patito#159 · Filter by author raayu83 opened on Dec 23, 2025
  3

• Allow setting message on custom constraints

  JakobGM/patito#158 · Filter by author areleu opened on Dec 4, 2025
  3

• Non-string Literal types are not supported

  JakobGM/patito#157 · Filter by author domkm opened on Nov 26, 2025

• Allow PEP‑681‑aware init like pydantic BaseModel

  JakobGM/patito#156 · Filter by author ShravanSunder opened on Nov 9, 2025

• Do you want to collaborate on a validation UI

  JakobGM/patito#148 · Filter by author paddymul opened on Jun 4, 2025

• iter_models doesn't always wrap inner models

  JakobGM/patito#147 · Filter by author d-miketa opened on Mar 31, 2025

• Bug: pydantic 2.11 has deprecated __get__ (will be removed in pydantic 3)

  JakobGM/patito#146 · Filter by author strangemonad opened on Mar 29, 2025

• LazyFrame.validate missing

  JakobGM/patito#145 · Filter by author danielgafni opened on Mar 24, 2025

• Arrow Flight

  JakobGM/patito#143 · Filter by author v1gnesh opened on Mar 8, 2025

• Conda release

  JakobGM/patito#142 · Filter by author rupertcw opened on Mar 7, 2025

• Severe issue about Model.DataFrame and pl.Object

  JakobGM/patito#141 · Filter by author gab23r opened on Feb 19, 2025

• Static type of Model.examples is DataFrame[Unknown]

  JakobGM/patito#139 · Filter by author gab23r opened on Feb 18, 2025

• Returning row indices for errors

  JakobGM/patito#129 · Filter by author PSU3D0 opened on Jan 16, 2025

• Discussion: how to implement vectorized validations on struct columns?

  JakobGM/patito#125 · Filter by author dkapitan opened on Dec 18, 2024

• SqlModel (or a generic pydantic model) integration

  JakobGM/patito#124 · Filter by author iliya-malecki opened on Nov 29, 2024

• How to check single column is sorted

  JakobGM/patito#120 · Filter by author shenrun opened on Nov 10, 2024
  5

• Documentation not being updated on Readthedocs

  JakobGM/patito#119 · Filter by author nameloCmaS opened on Oct 31, 2024

• Validating Decimal with different scale than 0

  JakobGM/patito#102 · Filter by author franzhess opened on Sep 25, 2024

• Cuallee features

  JakobGM/patito#96 · Filter by author butterlyn opened on Aug 14, 2024
  2

• Validation bug with pl.Categorical ordering argument

  JakobGM/patito#83 · Filter by author chainyo opened on Jul 22, 2024
  3