chore: officially support Python 3.14 & drop 3.9; run simplified CI on 3.14

.github/workflows/coverage.yml

@@ -3,17 +3,13 @@ name: "Coverage"
 on: [push]
 jobs:
   coverage:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        python-version: ["3.13"]
-        os: [ubuntu-latest]
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: 3.14
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/formatting.yml

@@ -3,18 +3,16 @@ name: "Formatting"
 on: [push]
 jobs:
   black:
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.13"]
-        os: [ubuntu-latest]
         tool: ["black", "isort"]
     steps:
       - uses: actions/checkout@v5
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: 3.14
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/packaging_test.yml

@@ -3,17 +3,13 @@ name: "Packaging Test"
 on: [pull_request]
 jobs:
   check_packaging:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        python-version: ["3.11", "3.12", "3.13"]
-        os: [ubuntu-latest]
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: 3.14
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/python-publish.yml

@@ -14,17 +14,13 @@ on:
 jobs:
    tests:
      if: startsWith(github.ref, 'refs/tags/v')
-     runs-on: ${{ matrix.os }}
-     strategy:
-       matrix:
-         python-version: ["3.13"]
-         os: [ubuntu-latest]
+     runs-on: ubuntu-latest
      steps:
        - uses: actions/checkout@v5
-       - name: Set up Python ${{ matrix.python-version }}
+       - name: Set up Python
          uses: actions/setup-python@v6
          with:
-           python-version: ${{ matrix.python-version }}
+           python-version: 3.14
        - name: Install tox
          run: |
            python -m pip install --upgrade pip
@@ -35,11 +31,7 @@ jobs:
 
    build-n-publish:
      name: Build and publish Python 🐍 distributions 📦 to PyPI and TestPyPI
-     runs-on: ${{ matrix.os }}
-     strategy:
-       matrix:
-         python-version: [ "3.12" ]
-         os: [ ubuntu-latest ]
+     runs-on: ubuntu-latest
      # Specifying a GitHub environment, # Specifying a GitHub environment, which is strongly recommended by PyPI: https://docs.pypi.org/trusted-publishers/adding-a-publisher/
      # you have to create an environment in your repository settings and add the environment name here
      environment: release
@@ -52,7 +44,7 @@ jobs:
        - name: Set up Python
          uses: actions/setup-python@v6
          with:
-           python-version: ${{ matrix.python-version }}
+           python-version: 3.14
        - name: Install dependencies
          run: |
            python -m pip install --upgrade pip

.github/workflows/pythonlint.yml

@@ -4,18 +4,16 @@ on: [push]
 jobs:
   pylint:
     name: Python Code Quality and Lint
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.13"]
-        os: [ubuntu-latest]
         linter-env: ["linting", "type_check"]
     steps:
       - uses: actions/checkout@v5
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: 3.14
       - name: Install Dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/unittests.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v5

pyproject.toml

@@ -2,7 +2,7 @@
 name = "python-generics"
 description = "A package to determine the values of generic classes through instances or subclasses "
 license = { text = "MIT" }
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 authors = [{ name = "Hochfrequenz Unternehmensberatung GmbH", email = "info@hochfrequenz.de" }]
 keywords = ["python", "generics"]
 classifiers = [
@@ -13,11 +13,11 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
 dependencies = []     # add all the dependencies from requirements.in here, too
 dynamic = ["readme", "version"]
@@ -54,7 +54,7 @@ Homepage = "https://github.com/Hochfrequenz/python-generics"
 
 [tool.black]
 line-length = 120
-target_version = ["py39", "py310", "py311", "py312", "py313"]
+target_version = ["py310", "py311", "py312", "py313", "py314"]
 
 [tool.isort]
 line_length = 120

requirements.txt

@@ -1,5 +1,5 @@
 #
-# This file is autogenerated by pip-compile with Python 3.11
+# This file is autogenerated by pip-compile with Python 3.12
 # by the following command:
 #
 #    pip-compile requirements.in