2025-02-04 Update

.github/workflows/CI.yml

@@ -12,11 +12,14 @@ jobs:
         os: ["ubuntu"]
     runs-on: ${{ matrix.os }}-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
-          cache: "pip"
+          python-version: "3.12"
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -25,27 +28,24 @@ jobs:
           components: llvm-tools-preview
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@v2
         with:
           key: coverage-cargo-${{ matrix.os }}
         continue-on-error: true
       - name: Setup virtual environment
         run: |
-          python -m venv venv
-          source venv/bin/activate
-          pip install -r requirements.txt
+          uv sync
       - name: Run coverage
         run: |
-          source venv/bin/activate
           source <(cargo llvm-cov show-env --export-prefix)
           export CARGO_TARGET_DIR=$CARGO_LLVM_COV_TARGET_DIR
           export CARGO_INCREMENTAL=1
           cargo llvm-cov clean --workspace
           cargo test
-          maturin develop
-          pytest tests --cov=foobar --cov-report xml
-          cargo llvm-cov --no-run --lcov --output-path coverage.lcov
-      - uses: codecov/codecov-action@v3
+          uv run -- maturin develop --uv
+          uv run -- pytest tests --cov=foobar --cov-report xml
+          cargo llvm-cov report --lcov --output-path coverage.lcov
+      - uses: codecov/codecov-action@v5
         with:
           files: coverage.lcov,coverage.xml
           name: ${{ matrix.os }}

Cargo.toml

@@ -9,7 +9,7 @@ name = "foobar"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.16.1", features = ["extension-module"] }
+pyo3 = { version = "0.23.3", features = ["extension-module"] }
 
 [package.metadata.maturin]
 python-source = "python"

README.md

@@ -48,9 +48,7 @@ system. This installs `pytest`, which is able to measure the coverage of the
 Python only sections and also exercise the PyO3 bound Rust code.
 
 ```
-python3 -m venv venv
-source venv/bin/activate
-pip install -r requirements.txt
+uv sync
 ```
 
 The Rust tests use `cargo test`. To measure the full Rust coverage from Python
@@ -86,9 +84,9 @@ measurements.
 ```
 cargo llvm-cov clean --workspace
 cargo test
-maturin develop
-pytest tests --cov=foobar --cov-report xml
-cargo llvm-cov --no-run --lcov --output-path coverage.lcov
+uv run -- maturin develop --uv
+uv run -- pytest tests --cov=foobar --cov-report xml
+cargo llvm-cov report --lcov --output-path coverage.lcov
 ```
 
 First the `cargo llvm-cov clean` command removes any previous profiling

pyproject.toml

@@ -1,13 +1,22 @@
-[build-system]
-requires = ["maturin>=0.12,<0.13"]
-build-backend = "maturin"
-
 [project]
 name = "foobar"
-requires-python = ">=3.6"
+version = "0.1.1"
+requires-python = ">=3.9"
 classifiers = [
     "Programming Language :: Rust",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
 ]
+dependencies = [
+    "pytest>=8.3.4",
+    "pytest-cov>=6.0.0",
+    "maturin>=1.8.1",
+]
+
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
 
+[tool.maturin]
+python-source = "python"
+module-name = "foobar._foobar"

python/foobar/__init__.py

@@ -1,4 +1,4 @@
-from .foobar import pyo3_sum
+from ._foobar import pyo3_sum
 
 def py_sum(a, b):
     """Returns the sum of two numbers (Python only)"""

src/lib.rs

@@ -14,7 +14,7 @@ fn pyo3_sum(a: usize, b: usize) -> PyResult<usize> {
 
 /// A Python module implemented in Rust.
 #[pymodule]
-fn foobar(_py: Python, m: &PyModule) -> PyResult<()> {
+fn _foobar(_py: Python, m: &Bound<'_, PyModule>) -> PyResult<()> {
     m.add_function(wrap_pyfunction!(pyo3_sum, m)?)?;
     Ok(())
 }