Skip to content
Permalink

Comparing changes

Choose two branches to see what’s changed or to start a new pull request. If you need to, you can also or learn more about diff comparisons.

Open a pull request

Create a new pull request by comparing changes across two branches. If you need to, you can also . Learn more about diff comparisons here.
base repository: kronzter/openml-python
Failed to load repositories. Confirm that selected base ref is valid, then try again.
Loading
base: main
Choose a base ref
...
head repository: openml/openml-python
Failed to load repositories. Confirm that selected head ref is valid, then try again.
Loading
compare: main
Choose a head ref
Checking mergeability… Don’t worry, you can still create the pull request.
  • 2 commits
  • 5 files changed
  • 1 contributor

Commits on Feb 20, 2026

  1. [ENH] Add OpenMLAuthenticationError for clearer API key error handl… 

    …ing (openml#1570)

## Overview

This PR introduces a new **`OpenMLAuthenticationError`** exception to
clearly distinguish **authentication errors** (invalid or missing API
key) from **authorization errors** (valid API key without sufficient
permissions).

---

## Changes

### **New Exception**

* Added **`OpenMLAuthenticationError`** in `exceptions.py`
* Inherits from `OpenMLServerError` for consistency
* Automatically appends helpful guidance with links to:

* Getting an API key: [https://www.openml.org/](https://www.openml.org/)
  * OpenML authentication documentation
* Includes a clear docstring explaining the difference between
authentication and authorization errors

---

### **Updated Error Handling**

* Updated `_api_calls.py` to:

* Import and raise `OpenMLAuthenticationError` for authentication
failures

---

### **Tests Updated**

* Updated
`test_authentication_endpoints_requiring_api_key_show_relevant_help_link`

* Now expects `OpenMLAuthenticationError` instead of
`OpenMLNotAuthorizedError`
* Continues to assert that helpful guidance is included in the error
message

---

Fixes openml#1562
    @Omswastik-11
    Omswastik-11 authored Feb 20, 2026
    Configuration menu
    Copy the full SHA
    1bc9f15 View commit details
    Browse the repository at this point in the history

  2. [MNT] Remove redundant __init__s in OpenMLTask descendants by add… 

    …ing ClassVar (openml#1588)

Fixes openml#1578
    @Omswastik-11
    Omswastik-11 authored Feb 20, 2026
    Configuration menu
    Copy the full SHA
    7feb2a3 View commit details
    Browse the repository at this point in the history
Loading