Use uv as Nox backend and several related improvements (#476)

Author: basnijholt

.github/workflows/coverage.yml

@@ -11,10 +11,10 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
-        python-version: 3.11
-    - name: Install dependencies
-      run: pip install nox
+        python-version: 3.13
+    - name: Install uv
+      uses: astral-sh/setup-uv@v6
     - name: Test with nox
-      run: nox -e coverage
+      run: uv run --group nox nox -e coverage
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4

.github/workflows/matchers/pytest.json

@@ -12,19 +12,17 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Register Python problem matcher
-      run: echo "::add-matcher::.github/workflows/matchers/pytest.json"
-    - name: Install dependencies
-      run: pip install nox pytest-github-actions-annotate-failures
+    - name: Install uv
+      uses: astral-sh/setup-uv@v6
     - name: Test with nox using minimal dependencies
-      run: nox -e "pytest-${{ matrix.python-version }}(all_deps=False)"
+      run: uv run --group nox nox -e "pytest_min_deps-${{ matrix.python-version }}"
     - name: Test with nox with all dependencies
-      run: nox -e "pytest-${{ matrix.python-version }}(all_deps=True)"
+      run: uv run --group nox nox -e "pytest_all_deps-${{ matrix.python-version }}"

.github/workflows/nox.yml

@@ -12,8 +12,8 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
-        python-version: "3.11"
-    - name: Install dependencies
-      run: pip install nox
+        python-version: "3.13"
+    - name: Install uv
+      uses: astral-sh/setup-uv@v6
     - name: Test with nox
-      run: nox -e pytest_typeguard
+      run: uv run --group nox nox -e pytest_typeguard

.github/workflows/typeguard.yml

@@ -160,12 +160,12 @@ jupyter labextension install @pyviz/jupyterlab_pyviz
 
 ## :wrench: Development
 
-Clone the repository and run `pip install -e ".[notebook,testing,other]"` to add a link to the cloned repo into your Python path:
+Clone the repository and run `pip install -e ".[notebook,test,other]"` to add a link to the cloned repo into your Python path:
 
 ```bash
 git clone git@github.com:python-adaptive/adaptive.git
 cd adaptive
-pip install -e ".[notebook,testing,other]"
+pip install -e ".[notebook,test,other]"
 ```
 
 We recommend using a Conda environment or a virtualenv for package management during Adaptive development.

README.md

@@ -1,31 +1,45 @@
 """Nox configuration file."""
 
+import os
+
 import nox
 
+nox.options.default_venv_backend = "uv"
+
+python = ["3.9", "3.10", "3.11", "3.12", "3.13"]
+num_cpus = os.cpu_count() or 1
+xdist = ("-n", "auto") if num_cpus > 2 else ()
+
+
+@nox.session(python=python)
+def pytest_min_deps(session: nox.Session) -> None:
+    """Run pytest with no optional dependencies."""
+    session.install(".[test]")
+    session.run("coverage", "erase")
+    session.run("pytest", *xdist)
+
 
-@nox.session(python=["3.9", "3.10", "3.11", "3.12"])
-@nox.parametrize("all_deps", [True, False])
-def pytest(session: nox.Session, all_deps: bool) -> None:
-    """Run pytest with optional dependencies."""
-    session.install(".[testing,other]" if all_deps else ".[testing]")
+@nox.session(python=python)
+def pytest_all_deps(session: nox.Session) -> None:
+    """Run pytest with "other" optional dependencies."""
+    session.install(".[test,other]")
     session.run("coverage", "erase")
-    session.run("pytest")
+    session.run("pytest", *xdist)
 
 
-@nox.session(python="3.11")
+@nox.session(python="3.13")
 def pytest_typeguard(session: nox.Session) -> None:
     """Run pytest with typeguard."""
-    session.install(".[testing,other]")
+    session.install(".[test,other]")
     session.run("coverage", "erase")
-    session.run("pytest", "--typeguard-packages=adaptive")
+    session.run("pytest", "--typeguard-packages=adaptive", *xdist)
 
 
-@nox.session(python="3.11")
+@nox.session(python="3.13")
 def coverage(session: nox.Session) -> None:
     """Generate coverage report."""
-    session.install("coverage")
-    session.install(".[testing,other]")
-    session.run("pytest")
+    session.install(".[test,other]")
+    session.run("pytest", *xdist)
 
     session.run("coverage", "report")
     session.run("coverage", "xml")

noxfile.py

@@ -47,15 +47,18 @@ notebook = [
     "matplotlib",
     "plotly",
 ]
-testing = [
+test = [
     "flaky",
     "pytest",
     "pytest-cov",
     "pytest-randomly",
     "pytest-timeout",
+    "pytest-xdist",
     "pre_commit",
     "typeguard",
+    "coverage",
 ]
+dev = ["adaptive[test,nox,notebook,other]"]
 
 [project.urls]
 homepage = "https://adaptive.readthedocs.io/"
@@ -66,6 +69,12 @@ repository = "https://github.com/python-adaptive/adaptive"
 content-type = "text/markdown"
 file = "README.md"
 
+[dependency-groups]
+nox = [
+    "nox",
+    "pytest-github-actions-annotate-failures",
+]
+
 [tool.setuptools.packages.find]
 include = ["adaptive.*", "adaptive"]