[MNT] Update Python version support and CI to include Python 3.14 (#1566)

#### Metadata
* Reference Issue: Fixes #1531
* New Tests Added: No
* Documentation Updated: Yes
* Change Log Entry: Update supported Python version range to 3.10–3.14 and extend CI testing to Python 3.14


#### Details 
This pull request updates the officially supported Python version range for openml-python from 3.8–3.13 to 3.10–3.14, in line with currently supported Python releases.

The following changes were made:

Updated pyproject.toml to reflect the new supported Python range (3.10–3.14).

Extended GitHub Actions CI workflows (test.yml, dist.yaml, docs.yaml) to include Python 3.14.

Updated documentation (README.md) wherever Python version support is mentioned.

No new functionality or tests were introduced; this is a maintenance update to keep Python version support and CI configuration up to date.

This change ensures that users and contributors can use and test openml-python on the latest supported Python versions.

Author: DDiyash

.github/workflows/dist.yaml

@@ -27,7 +27,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: 3.8
+        python-version: "3.10"
     - name: Build dist
       run: |
         pip install build

.github/workflows/docs.yaml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: "3.10"
       - name: Install dependencies
         run: |
           pip install -e .[docs,examples]

.github/workflows/test.yml

@@ -1,3 +1,4 @@
+---
 name: Tests
 
 on:
@@ -21,13 +22,13 @@ concurrency:
 
 jobs:
   test:
-    name: (${{ matrix.os }}, Py${{ matrix.python-version }}, sk${{ matrix.scikit-learn }}, sk-only:${{ matrix.sklearn-only }})
+    name: (${{ matrix.os }},Py${{ matrix.python-version }},sk${{ matrix.scikit-learn }},sk-only:${{ matrix.sklearn-only }})
     runs-on: ${{ matrix.os }}
 
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         scikit-learn: ["1.3.*", "1.4.*", "1.5.*", "1.6.*", "1.7.*"]
         os: [ubuntu-latest]
         sklearn-only: ["true"]
@@ -38,8 +39,18 @@ jobs:
             scikit-learn: "1.3.*"
           - python-version: "3.13"
             scikit-learn: "1.4.*"
+          - python-version: "3.14"
+            scikit-learn: "1.3.*"
+          - python-version: "3.14"
+            scikit-learn: "1.4.*"
 
         include:
+          # Full test run on ubuntu, 3.14
+          - os: ubuntu-latest
+            python-version: "3.14"
+            scikit-learn: "1.7.*"
+            sklearn-only: "false"
+
           # Full test run on Windows
           - os: windows-latest
             python-version: "3.12"

.gitignore

@@ -98,7 +98,17 @@ dmypy.sock
 
 # Tests
 .pytest_cache
+
+# Virtual environments
+oenv/
+venv/
+.env/
 .venv
+.venv/
+
+# Python cache
+__pycache__/
+*.pyc
 
 # Ruff
-.ruff-cache/
+.ruff-cache/

README.md

@@ -15,7 +15,7 @@
 ## The Python API for a World of Data and More :dizzy:
 
 [![Latest Release](https://img.shields.io/github/v/release/openml/openml-python)](https://github.com/openml/openml-python/releases)
-[![Python Versions](https://img.shields.io/badge/python-3.8%20%7C%203.9%20%7C%203.10%20%7C%203.11%20%7C%203.12%20%7C%203.13-blue)](https://pypi.org/project/openml/)
+[![Python Versions](https://img.shields.io/badge/python-3.10%20%7C%203.11%20%7C%203.12%20%7C%203.13%20%7C%203.14-blue)](https://pypi.org/project/openml/)
 [![Downloads](https://static.pepy.tech/badge/openml)](https://pepy.tech/project/openml)
 [![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)
 <!-- Add green badges for CI and precommit -->
@@ -60,7 +60,7 @@ for task_id in suite.tasks:
 
 ## :magic_wand: Installation
 
-OpenML-Python is supported on Python 3.8 - 3.13 and is available on Linux, MacOS, and Windows.
+OpenML-Python is supported on Python 3.10 - 3.14 and is available on Linux, MacOS, and Windows.
 
 You can install OpenML-Python with:
 

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
   "pyarrow",
   "tqdm",  # For MinIO download progress bars
 ]
-requires-python = ">=3.8"
+requires-python = ">=3.10,<3.15"    
 maintainers = [
   { name = "Pieter Gijsbers", email="p.gijsbers@tue.nl"},
   { name = "Lennart Purucker"},