Removed tox for a plain github action workflow and updated flit_core

.github/workflows/build.yml

@@ -1,80 +1,56 @@
 name: Build
 
 on:
-    push:
-        branches:
-            - master
-    pull_request:
-        branches:
-            - master
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 
-jobs:
-    test:
-        name: "${{ matrix.os }}: ${{ matrix.tox-env }}"
-        runs-on: ${{ matrix.os }}
-        strategy:
-            fail-fast: false
-            matrix:
-                tox-env:
-                    [
-                        py39-test,
-                        py310-test,
-                        py311-test,
-                        py312-test,
-                        py313-test,
-                        pypy-test,
-                    ]
-                os: [ubuntu-24.04, windows-latest]
-
-                # Only test on a couple of versions on Windows.
-                exclude:
-                    - os: windows-latest
-                      tox-env: pypy-test
+env:
+  MAIN_PYTHON_VERSION: "3.12"
 
-                # Python interpreter versions. :/
-                include:
-                    - tox-env: py39-test
-                      python: "3.9"
-                    - tox-env: py310-test
-                      python: "3.10"
-                    - tox-env: py311-test
-                      python: "3.11"
-                    - tox-env: py312-test
-                      python: "3.12"
-                    - tox-env: py313-test
-                      python: "3.13"
-                    - tox-env: pypy-test
-                      python: pypy3.9
+jobs:
+  test:
+    name: "${{ matrix.os }}: ${{ matrix.python-version }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        os: [ubuntu-24.04, windows-latest]
 
-        steps:
-            - uses: actions/checkout@v3
-            - name: Set up Python ${{ matrix.python }}
-              uses: actions/setup-python@v4
-              with:
-                  python-version: ${{ matrix.python }}
-            - name: Install Tox
-              run: pip install tox
-            - name: Tox
-              run: tox -e ${{ matrix.tox-env }}
+    steps:
+      - uses: actions/checkout@v5
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install .[dev]
 
-    style:
-        name: Style
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@v4
-            - name: Install Python
-              uses: actions/setup-python@v5
-              with:
-                  python-version: "3.9"
-            - name: Install dependencies
-              run: |
-                  python -m pip install --upgrade pip
-                  pip install .[dev]
-            - name: Check style with Ruff
-              id: ruff
-              run: |
-                  ruff check --output-format=github .
-            - name: Check format with Ruff
-              id: ruff-format
-              run: |
-                  ruff format --check .
+      - name: Run tests
+        run: |
+          pytest -v
+  style:
+    name: Style
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - name: Set up Python ${{ env.MAIN_PYTHON_VERSION }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.MAIN_PYTHON_VERSION }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install .[dev]
+      - name: Check style with Ruff
+        run: |
+          ruff check --output-format=github .
+      - name: Check format with Ruff
+        run: |
+          ruff format --check .

pyproject.toml

@@ -1,33 +1,38 @@
 [build-system]
-requires = ["flit_core >=2,<4"]
+requires = ["flit_core >=3.11,<4"]
 build-backend = "flit_core.buildapi"
 
-[tool.flit.metadata]
-module = "mediafile"
-author = "Adrian Sampson"
-author-email = "[email protected]"
-home-page = "https://github.com/beetbox/mediafile"
-description-file = "README.rst"
-requires = [
-    "mutagen>=1.46",
-    "filetype>=1.2.0",
+[project]
+name = "mediafile"
+authors = [
+    { name = "Adrian Sampson", email = "[email protected]" },
 ]
-requires-python = ">=3.7"
+readme = "README.rst"
+license = "MIT"
+requires-python = ">=3.9"
+description = "A simple, cross-format library for reading and writing media file metadata."
+dynamic = ["version"]
 classifiers = [
     'Topic :: Multimedia :: Sound/Audio',
-    'License :: OSI Approved :: MIT License',
     'Environment :: Web Environment',
-    'Programming Language :: Python :: 3.7',
-    'Programming Language :: Python :: 3.8',
     '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 :: Implementation :: PyPy',
 ]
-
-[tool.flit.metadata.requires-extra]
-test = [
-    "tox"
+dependencies = [
+    "mutagen>=1.46",
+    "filetype>=1.2.0",
 ]
+
+
+[project.urls]
+Documentation = "https://mediafile.readthedocs.io"
+Source = "https://github.com/beetbox/mediafile"
+
+[project.optional-dependencies]
 dev = [
     "ruff",
     "pytest"
@@ -52,4 +57,4 @@ ignore = [
 ]
 
 [tool.ruff.format]
-quote-style = "double"
+quote-style = "double"