bump examples to PyO3 0.22, support Python 3.13

.github/workflows/ci.yml

@@ -62,7 +62,7 @@ jobs:
       # If one platform fails, allow the rest to keep testing if `CI-no-fail-fast` label is present
       fail-fast: ${{ !contains(github.event.pull_request.labels.*.name, 'CI-no-fail-fast') }}
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", pypy-3.8, pypy-3.9, pypy-3.10]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", pypy-3.8, pypy-3.9, pypy-3.10]
         platform: [
           { os: "macos-latest", python-architecture: "arm64", rust-target: "aarch64-apple-darwin" },
           { os: "ubuntu-latest", python-architecture: "x64", rust-target: "x86_64-unknown-linux-gnu" },
@@ -91,6 +91,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           architecture: ${{ matrix.platform.python-architecture }}
+          allow-prereleases: true
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable

CHANGELOG.md

@@ -1,6 +1,9 @@
 # Changelog
 
 ## Unreleased
+### Packaging
+- Support Python 3.13. [#446](https://github.com/PyO3/setuptools-rust/pull/446)
+
 ### Changed
  - Use the base interpreter path when running inside a virtual environment to avoid recompilation when switching between virtual environments. [#429](https://github.com/PyO3/setuptools-rust/pull/429)
  - Delay import of dependencies until use to avoid import errors during a partially complete install when multiple packages are installing at once. [#437](https://github.com/PyO3/setuptools-rust/pull/437)

README.md

@@ -69,7 +69,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-pyo3 = "0.20.3"
+pyo3 = "0.22.0"
 
 [lib]
 name = "_lib"  # private module to be nested into Python package,

examples/hello-world-setuppy/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-pyo3 = "0.21.0"
+pyo3 = "0.22.0"
 
 [lib]
 # See https://github.com/PyO3/pyo3 for details

examples/hello-world-setuppy/rust/lib.rs

@@ -1,16 +1,15 @@
 use pyo3::prelude::*;
 
-/// Formats the sum of two numbers as string.
-#[pyfunction]
-fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
-    Ok((a + b).to_string())
-}
-
 /// A Python module implemented in Rust. The name of this function must match
 /// the `lib.name` setting in the `Cargo.toml`, else Python will not be able to
 /// import the module.
 #[pymodule]
-fn _lib(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
-    Ok(())
+mod _lib {
+    use pyo3::prelude::*;
+
+    /// Formats the sum of two numbers as string.
+    #[pyfunction]
+    fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
+        Ok((a + b).to_string())
+    }
 }