bump MSRV to match PyO3

.github/workflows/ci.yml

@@ -262,7 +262,7 @@ jobs:
         with:
           python-version: "3.12"
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.63
+        uses: dtolnay/rust-toolchain@1.74
       - uses: Swatinem/rust-cache@v2
         with:
           workspaces: examples/simple
@@ -273,8 +273,6 @@ jobs:
         run: |
           import toml
           cargo_toml = toml.load("Cargo.toml")
-          cargo_toml["dependencies"]["ndarray"] = "0.15.6"
-          cargo_toml["dependencies"]["once_cell"] = "1.20.3"
           with open("Cargo.toml", "w") as f:
             toml.dump(cargo_toml, f)
         working-directory: examples/simple
@@ -289,10 +287,6 @@ jobs:
           cargo_lock = toml.load("Cargo.lock")
           for pkg in cargo_lock["package"]:
             pkg_id = pkg["name"] + ":" + pkg["version"]
-            if pkg["name"] == "ndarray" and pkg["version"] != "0.15.6":
-              subprocess.run(["cargo", "update", "--package", pkg_id, "--precise", "0.15.6"], check=True)
-            elif pkg["name"] == "once_cell" and pkg["version"] != "1.20.3":
-              subprocess.run(["cargo", "update", "--package", pkg_id, "--precise", "1.20.3"], check=True)
         working-directory: examples/simple
         shell: python
       - name: Test example

CHANGELOG.md

@@ -1,7 +1,13 @@
 # Changelog
+- v0.26.0
+  - bump MSRV to 1.74, matching PyO3 ([#504](https://github.com/PyO3/rust-numpy/pull/504))
+
+- v0.25.0,
+  - Bump PyO3 dependency to v0.25.0. ([#492](https://github.com/PyO3/rust-numpy/pull/492))
+
 - v0.24.0
-  - Bump PyO3 dependency to v0.24.0. ([#483](https://github.com/PyO3/rust-numpy/pull/483)
-  - Support Python 3.13t "free-threaded" Python. ([#471](https://github.com/PyO3/rust-numpy/pull/471)
+  - Bump PyO3 dependency to v0.24.0. ([#483](https://github.com/PyO3/rust-numpy/pull/483))
+  - Support Python 3.13t "free-threaded" Python. ([#471](https://github.com/PyO3/rust-numpy/pull/471))
 
 - v0.23.0
   - Drop support for PyPy 3.7 and 3.8. ([#470](https://github.com/PyO3/rust-numpy/pull/470))

Cargo.toml

@@ -8,7 +8,7 @@ authors = [
 description = "PyO3-based Rust bindings of the NumPy C-API"
 documentation = "https://docs.rs/numpy"
 edition = "2021"
-rust-version = "1.63"
+rust-version = "1.74"
 repository = "https://github.com/PyO3/rust-numpy"
 categories = ["api-bindings", "development-tools::ffi", "science"]
 keywords = ["python", "numpy", "ffi", "pyo3"]

src/array.rs

@@ -756,6 +756,7 @@ pub trait PyArrayMethods<'py, T, D>: PyUntypedArrayMethods<'py> {
     /// or concurrently modified by Python or other native code.
     ///
     /// Please consider the safe alternative [`PyReadwriteArray::as_slice_mut`].
+    #[allow(clippy::mut_from_ref)]
     unsafe fn as_slice_mut(&self) -> Result<&mut [T], NotContiguousError>
     where
         T: Element,
@@ -821,6 +822,7 @@ pub trait PyArrayMethods<'py, T, D>: PyUntypedArrayMethods<'py> {
     ///     assert_eq!(unsafe { *pyarray.get([1, 0, 3]).unwrap() }, 42);
     /// });
     /// ```
+    #[allow(clippy::mut_from_ref)]
     unsafe fn get_mut(&self, index: impl NpyIndex<Dim = D>) -> Option<&mut T>
     where
         T: Element,

src/borrow/mod.rs

@@ -674,7 +674,7 @@ mod tests {
                 let shared = array.readonly();
 
                 assert_eq!(
-                    format!("{:?}", shared),
+                    format!("{shared:?}"),
                     "PyReadonlyArray<f64, ndarray::dimension::dim::Dim<[usize; 3]>>"
                 );
             }
@@ -683,7 +683,7 @@ mod tests {
                 let exclusive = array.readwrite();
 
                 assert_eq!(
-                    format!("{:?}", exclusive),
+                    format!("{exclusive:?}"),
                     "PyReadwriteArray<f64, ndarray::dimension::dim::Dim<[usize; 3]>>"
                 );
             }

src/borrow/shared.rs

@@ -151,8 +151,7 @@ fn insert_shared<'py>(py: Python<'py>) -> PyResult<*const Shared> {
     let version = unsafe { *capsule.pointer().cast::<u64>() };
     if version < 1 {
         return Err(PyTypeError::new_err(format!(
-            "Version {} of borrow checking API is not supported by this version of rust-numpy",
-            version
+            "Version {version} of borrow checking API is not supported by this version of rust-numpy"
         )));
     }
 
@@ -175,7 +174,7 @@ pub fn acquire<'py>(py: Python<'py>, array: *mut PyArrayObject) -> Result<(), Bo
     match rc {
         0 => Ok(()),
         -1 => Err(BorrowError::AlreadyBorrowed),
-        rc => panic!("Unexpected return code {} from borrow checking API", rc),
+        rc => panic!("Unexpected return code {rc} from borrow checking API"),
     }
 }
 
@@ -188,7 +187,7 @@ pub fn acquire_mut<'py>(py: Python<'py>, array: *mut PyArrayObject) -> Result<()
         0 => Ok(()),
         -1 => Err(BorrowError::AlreadyBorrowed),
         -2 => Err(BorrowError::NotWriteable),
-        rc => panic!("Unexpected return code {} from borrow checking API", rc),
+        rc => panic!("Unexpected return code {rc} from borrow checking API"),
     }
 }
 

src/dtype.rs

@@ -510,7 +510,7 @@ fn npy_int_type_lookup<T, T0, T1, T2>(npy_types: [NPY_TYPES; 3]) -> NPY_TYPES {
         x if x == size_of::<T0>() => npy_types[0],
         x if x == size_of::<T1>() => npy_types[1],
         x if x == size_of::<T2>() => npy_types[2],
-        _ => panic!("Unable to match integer type descriptor: {:?}", npy_types),
+        _ => panic!("Unable to match integer type descriptor: {npy_types:?}"),
     }
 }
 

src/npyffi/array.rs

@@ -46,7 +46,7 @@ pub(crate) fn mod_name(py: Python<'_>) -> PyResult<&'static str> {
     MOD_NAME
         .get_or_try_init(py, || {
             let numpy_core = numpy_core_name(py)?;
-            Ok(format!("{}.multiarray", numpy_core))
+            Ok(format!("{numpy_core}.multiarray"))
         })
         .map(String::as_str)
 }

src/npyffi/ufunc.rs

@@ -11,7 +11,7 @@ fn mod_name(py: Python<'_>) -> PyResult<&'static str> {
     MOD_NAME
         .get_or_try_init(py, || {
             let numpy_core = super::array::numpy_core_name(py)?;
-            Ok(format!("{}.umath", numpy_core))
+            Ok(format!("{numpy_core}.umath"))
         })
         .map(String::as_str)
 }