build: drop py3.8

Author: nstarman

.github/workflows/ci.yml

@@ -20,46 +20,55 @@ env:
   FORCE_COLOR: 3
 
 jobs:
-  pre-commit:
+  format:
     name: Format
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
-        with:
-          python-version: "3.x"
-      # - uses: pre-commit/action@v3.0.1
-      #   with:
-      #     extra_args: --hook-stage manual --all-files
-      - name: Run PyLint
-        run: pipx run nox -s pylint -- --output-format=github
+      - name: Install uv
+        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - name: Install
+        run: uv sync --no-default-groups --group nox --group lint --locked
+      - name: Lint
+        run: uv run --frozen nox -s lint
 
-  checks:
+  tests:
     name: Check Python ${{ matrix.python-version }} on ${{ matrix.runs-on }}
     runs-on: ${{ matrix.runs-on }}
-    needs: [pre-commit]
+    needs: [format]
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.13"]
+        python-version: ["3.9", "3.13"]
         runs-on: [ubuntu-latest, windows-latest, macos-latest]
 
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
         with:
           python-version: ${{ matrix.python-version }}
-          allow-prereleases: true
 
-      - name: Install package
-        run: python -m pip install .[test]
+      - name: Install
+        run: uv sync --no-default-groups --group nox --group test --locked
 
       - name: Test package
-        run: >-
-          python -m pytest -ra --cov --cov-report=xml --cov-report=term
-          --durations=20
+        run: |
+          uv run --frozen nox -s test -- --cov --cov-report=xml --cov-report=term --durations=20
 
       - name: Upload coverage report
         uses: codecov/codecov-action@5a1091511ad55cbe89839c7260b706298ca349f7 # v5.5.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
+
+  status:
+    name: CI Pass
+    runs-on: ubuntu-latest
+    needs: [format, tests]
+    if: always()
+    steps:
+      - name: All required jobs passed
+        uses: re-actors/alls-green@release/v1
+        with:
+          jobs: ${{ toJSON(needs) }}

.pre-commit-config.yaml

@@ -62,6 +62,8 @@ repos:
     rev: "v2.4.1"
     hooks:
       - id: codespell
+        args: ["--toml", "pyproject.toml"]
+        additional_dependencies: ["tomli"]
 
   - repo: local
     hooks:

noxfile.py

@@ -1,52 +1,65 @@
-"""Nox configuration."""
+"""Nox setup."""
 
 import shutil
 from pathlib import Path
 
 import nox
+from nox_uv import session
+
+nox.needs_version = ">=2024.3.2"
+nox.options.default_venv_backend = "uv"
 
 DIR = Path(__file__).parent.resolve()
 
-nox.needs_version = ">=2024.3.2"
-nox.options.sessions = ["lint", "pylint", "tests"]
-nox.options.default_venv_backend = "uv|virtualenv"
+# =============================================================================
+# Linting
 
 
-@nox.session
-def lint(session: nox.Session) -> None:
+@session(uv_groups=["lint"], reuse_venv=True)
+def lint(s: nox.Session, /) -> None:
     """Run the linter."""
-    session.install("pre-commit")
-    session.run(
-        "pre-commit",
-        "run",
-        "--all-files",
-        "--show-diff-on-failure",
-        *session.posargs,
-    )
-
-
-@nox.session
-def pylint(session: nox.Session) -> None:
+    s.notify("precommit")
+    s.notify("pylint")
+
+
+@session(uv_groups=["lint"], reuse_venv=True)
+def precommit(s: nox.Session, /) -> None:
+    """Run pre-commit."""
+    s.run("pre-commit", "run", "--all-files", *s.posargs)
+
+
+@session(uv_groups=["lint"], reuse_venv=True)
+def pylint(s: nox.Session, /) -> None:
     """Run PyLint."""
-    # This needs to be installed into the package environment, and is slower
-    # than a pre-commit check
-    session.install(".", "pylint>=3.2")
-    session.run("pylint", "plotting_backends", *session.posargs)
+    s.install(".", "pylint>=3.2")
+    s.run("pylint", "plotting_backends", *s.posargs)
 
 
-@nox.session
-def tests(session: nox.Session) -> None:
+# =============================================================================
+# Testing
+
+
+@session(uv_groups=["test"], reuse_venv=True)
+def test(s: nox.Session, /) -> None:
     """Run the unit and regular tests."""
-    session.install(".[test]")
-    session.run("pytest", *session.posargs)
+    s.notify("pytest", posargs=s.posargs)
+
+
+@session(uv_groups=["test"], reuse_venv=True)
+def pytest(s: nox.Session, /) -> None:
+    """Run the unit and regular tests."""
+    s.run("pytest", *s.posargs)
+
+
+# =============================================================================
+# Build
 
 
-@nox.session
-def build(session: nox.Session) -> None:
+@session(uv_groups=["build"])
+def build(s: nox.Session, /) -> None:
     """Build an SDist and wheel."""
     build_path = DIR.joinpath("build")
     if build_path.exists():
         shutil.rmtree(build_path)
 
-    session.install("build")
-    session.run("python", "-m", "build")
+    s.run("python", "-m", "build")

pyproject.toml

@@ -12,7 +12,7 @@ authors = [
 description = "Plotting dispatch backends"
 readme = "README.md"
 license.file = "LICENSE"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
   "Development Status :: 1 - Planning",
   "Intended Audience :: Science/Research",
@@ -22,7 +22,6 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
@@ -34,36 +33,47 @@ classifiers = [
 dynamic = ["version"]
 dependencies = []
 
-[project.optional-dependencies]
-test = [
-  "pytest >=6",
-  "pytest-cov >=3",
-  "sybil != 7.1.0",
-]
-dev = [
-  "plotting_backends[test]",
-]
-
 [project.urls]
 Homepage = "https://github.com/GalacticDynamics/plotting_backends"
 "Bug Tracker" = "https://github.com/GalacticDynamics/plotting_backends/issues"
 Changelog = "https://github.com/GalacticDynamics/plotting_backends/releases"
 
 
+[dependency-groups]
+dev = [
+  "cz-conventional-gitmoji>=0.6.1",
+  "ipykernel>=6.29.5",
+  { include-group = "build" },
+  { include-group = "lint" },
+  { include-group = "nox" },
+  { include-group = "test" },
+]
+build = [
+  "build>=1.3.0",
+]
+lint = [
+  "mypy>=1.19.0",
+  "pre-commit>=3.5.0",
+  "pylint>=3.3.9",
+]
+nox = [
+  "nox>=2025.11.12",
+  "nox-uv>=0.6.3",
+]
+test = [
+  "pytest>=8.4.1",
+  "pytest-cov>=6.2.1",
+  "sybil[pytest]>=9.1.0",
+]
+
+
 [tool.hatch]
 version.source = "vcs"
 build.hooks.vcs.version-file = "src/plotting_backends/_version.py"
 
 
-[tool.pytest.ini_options]
-minversion = "8.0"
-addopts = ["-ra", "--showlocals", "--strict-markers", "--strict-config"]
-xfail_strict = true
-filterwarnings = [
-  "error",
-]
-log_cli_level = "INFO"
-testpaths = ["tests/", "src/"]
+[tool.codespell]
+skip = ["uv.lock"]
 
 
 [tool.coverage]
@@ -77,7 +87,7 @@ report.exclude_also = [
 ]
 
 [tool.mypy]
-python_version = "3.8"
+python_version = "3.9"
 
 disallow_incomplete_defs = true
 disallow_untyped_defs = true
@@ -100,6 +110,17 @@ module = "plotting_backends.*"
 disable_error_code = ["name-defined"] # <- jaxtyping
 
 
+[tool.pytest.ini_options]
+minversion = "8.0"
+addopts = ["-ra", "--showlocals", "--strict-markers", "--strict-config"]
+xfail_strict = true
+filterwarnings = [
+  "error",
+]
+log_cli_level = "INFO"
+testpaths = ["tests/", "src/"]
+
+
 [tool.ruff]
 
 [tool.ruff.lint]
@@ -118,7 +139,7 @@ ignore = [
 
 
 [tool.pylint]
-py-version = "3.8"
+py-version = "3.9"
 ignore-paths = [".*/_version.py"]
 reports.output-format = "colorized"
 similarities.ignore-imports = "yes"