Use uv in CI and update for PEP 639.

Author: Julian

.github/workflows/ci.yml

@@ -7,35 +7,32 @@ on:
     tags:
       - "v*"
   pull_request:
-  release:
-    types: [published]
   schedule:
     # Daily at 7:37
     - cron: "37 7 * * *"
   workflow_dispatch:
 
-env:
-  PIP_DISABLE_PIP_VERSION_CHECK: "1"
-  PIP_NO_PYTHON_VERSION_WARNING: "1"
-
 jobs:
   list:
     runs-on: ubuntu-latest
     outputs:
       noxenvs: ${{ steps.noxenvs-matrix.outputs.noxenvs }}
     steps:
       - uses: actions/checkout@v4
-      - name: Set up nox
-        uses: wntrblm/nox@2024.10.09
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
       - id: noxenvs-matrix
         run: |
           echo >>$GITHUB_OUTPUT noxenvs=$(
-            nox --list-sessions --json | jq '[.[].session]'
+            uvx nox --list-sessions --json | jq '[.[].session]'
           )
 
   ci:
     needs: list
     runs-on: ${{ matrix.os }}
+
     strategy:
       fail-fast: false
       matrix:
@@ -44,7 +41,7 @@ jobs:
         posargs: [""]
         include:
           - os: ubuntu-latest
-            noxenv: "tests-3.11"
+            noxenv: tests-3.13
             posargs: coverage github
 
     steps:
@@ -59,39 +56,43 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: |
-            3.8
             3.9
             3.10
             3.11
             3.12
+            3.13
             pypy3.10
           allow-prereleases: true
-      - name: Set up nox
-        uses: wntrblm/nox@2024.10.09
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
+
       - name: Run nox
-        run: nox -s "${{ matrix.noxenv }}" -- ${{ matrix.posargs }}
+        run: uvx nox -s "${{ matrix.noxenv }}" -- ${{ matrix.posargs }}
 
   packaging:
     needs: ci
     runs-on: ubuntu-latest
     environment:
       name: PyPI
       url: https://pypi.org/p/jsonschema-lexer
+
     permissions:
       contents: write
       id-token: write
 
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v5
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v5
         with:
-          cache: pip
-          python-version: "3.x"
-      - name: Install dependencies
-        run: python -m pip install build
-      - name: Create packages
-        run: python -m build .
+          enable-cache: true
+
+      - name: Build our distributions
+        run: uv run --frozen --with 'build[uv]' -m build --installer=uv
+
       - name: Publish to PyPI
         if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
         uses: pypa/gh-action-pypi-publish@release/v1

noxfile.py

@@ -12,14 +12,14 @@
 REQUIREMENTS = dict(
     tests=ROOT / "test-requirements.txt",
 )
-REQUIREMENTS_IN = {
-    path.parent / f"{path.stem}.in" for path in REQUIREMENTS.values()
-}
+REQUIREMENTS_IN = [  # this is actually ordered, as files depend on each other
+    (path.parent / f"{path.stem}.in", path) for path in REQUIREMENTS.values()
+]
 
-
-SUPPORTED = ["pypy3.10", "3.10", "3.11", "3.12"]
+SUPPORTED = ["pypy3.10", "3.10", "3.11", "3.12", "3.13"]
 LATEST = SUPPORTED[-1]
 
+nox.options.default_venv_backend = "uv|virtualenv"
 nox.options.sessions = []
 
 
@@ -35,7 +35,7 @@ def _session(fn):
 @session(python=SUPPORTED)
 def tests(session):
     """
-    Run the test suite.
+    Run the test suite with a corresponding Python version.
     """
     session.install("-r", REQUIREMENTS["tests"])
 
@@ -60,7 +60,7 @@ def tests(session):
                     stdout=summary,
                 )
     else:
-        session.run("python", "-m", "pytest", *session.posargs, PACKAGE)
+        session.run("pytest", *session.posargs, PACKAGE)
 
 
 @session(python=SUPPORTED)
@@ -77,9 +77,15 @@ def build(session):
     """
     Build a distribution suitable for PyPI and check its validity.
     """
-    session.install("build", "twine")
+    session.install("build[uv]", "twine")
     with TemporaryDirectory() as tmpdir:
-        session.run("python", "-m", "build", ROOT, "--outdir", tmpdir)
+        session.run(
+            "pyproject-build",
+            "--installer=uv",
+            ROOT,
+            "--outdir",
+            tmpdir,
+        )
         session.run("twine", "check", "--strict", tmpdir + "/*")
 
 
@@ -95,33 +101,35 @@ def secrets(session):
 @session(tags=["style"])
 def style(session):
     """
-    Check for coding style.
+    Check Python code style.
     """
     session.install("ruff")
-    session.run("ruff", "check", ROOT)
+    session.run("ruff", "check", ROOT, __file__)
 
 
 @session()
 def typing(session):
     """
-    Statically check typing annotations.
+    Check static typing.
     """
     session.install("pyright", ROOT)
-    session.run("pyright", PACKAGE)
+    session.run("pyright", *session.posargs, PACKAGE)
 
 
 @session(default=False)
 def requirements(session):
     """
-    Update requirements files.
+    Update the project's pinned requirements.
+
+    You should commit the result afterwards.
     """
-    session.install("pip-tools")
-    for each in REQUIREMENTS_IN:
-        session.run(
-            "pip-compile",
-            "--resolver",
-            "backtracking",
-            "--strip-extras",
-            "-U",
-            each.relative_to(ROOT),
-        )
+    if session.venv_backend == "uv":
+        cmd = ["uv", "pip", "compile"]
+    else:
+        session.install("pip-tools")
+        cmd = ["pip-compile", "--resolver", "backtracking", "--strip-extras"]
+
+    for each, out in REQUIREMENTS_IN:
+        # otherwise output files end up with silly absolute path comments...
+        relative = each.relative_to(ROOT)
+        session.run(*cmd, "--upgrade", "--output-file", out, relative)

pyproject.toml

@@ -10,19 +10,21 @@ name = "jsonschema-lexer"
 description = "A Pygments lexer for JSON Schema"
 requires-python = ">=3.10"
 readme = "README.rst"
+license = "MIT"
+license-files = ["COPYING"]
 keywords = ["json", "jsonschema"]
 authors = [
   { name = "Julian Berman", email = "Julian+jsonschema-lexer@GrayVines.com" },
 ]
 classifiers = [
   "Development Status :: 3 - Alpha",
-  "License :: OSI Approved :: MIT License",
+  "Intended Audience :: Developers",
   "Operating System :: OS Independent",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
-  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
   "Topic :: File Formats :: JSON",
@@ -56,24 +58,16 @@ skip_covered = true
 
 [tool.doc8]
 ignore = [
-    "D000",  # see PyCQA/doc8#125
-    "D001",  # one sentence per line, so max length doesn't make sense
+  "D000",  # see PyCQA/doc8#125
+  "D001",  # one sentence per line, so max length doesn't make sense
 ]
 
-[tool.isort]
-combine_as_imports = true
-ensure_newline_before_comments = true
-from_first = true
-include_trailing_comma = true
-multi_line_output = 3
-use_parentheses = true
-
 [tool.pyright]
 reportUnnecessaryTypeIgnoreComment = true
 strict = ["**/*.py"]
 exclude = [
-    "**/tests/__init__.py",
-    "**/tests/test_*.py",
+  "**/tests/__init__.py",
+  "**/tests/test_*.py",
 ]
 
 [tool.ruff]
@@ -85,6 +79,7 @@ ignore = [
   "A001",  # It's fine to shadow builtins
   "A002",
   "A003",
+  "A005",
   "ARG",  # This is all wrong whenever an interface is involved
   "ANN",  # Just let the type checker do this
   "B006",  # Mutable arguments require care but are OK if you don't abuse them