add python 3.13 wheels, now that its ABI is stable

.github/workflows/wheels.yml

@@ -61,9 +61,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
+        if : ${{ matrix.os == 'windows' }}
         with:
-          python-version: '3.12'
+          python-version: '3.13'
           architecture: ${{ matrix.python-architecture || 'x64' }}
+          allow-prereleases: true
       - run: pip install -U twine
       - name: Generate third-party license information
         run: |
@@ -73,7 +75,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.target }}
-          args: --release --strip --out dist --interpreter '3.9 3.10 3.11 3.12'
+          args: --release --strip --out dist --interpreter '3.9 3.10 3.11 3.12 3.13'
           manylinux: ${{ matrix.manylinux || 'auto' }}
           sccache: 'true'
           rust-toolchain: "1.79"

CHANGELOG.rst

@@ -1,6 +1,12 @@
 🚀 Changelog
 ============
 
+0.6.7 (2024-08-02)
+------------------
+
+- Add Python 3.13 binary wheels, now that its ABI is stable
+- Small improvements to import speed
+
 0.6.6 (2024-07-27)
 ------------------
 

pyproject.toml

@@ -4,7 +4,7 @@ authors = [
     {name = "Arie Bovenberg", email = "a.c.bovenberg@gmail.com"},
 ]
 readme = "README.md"
-version = "0.6.6"
+version = "0.6.7rc0"
 description = "Modern datetime library for Python, written in Rust"
 requires-python = ">=3.9"
 classifiers = [

pysrc/whenever/_pywhenever.py

@@ -32,7 +32,7 @@
 #   - It saves some overhead
 from __future__ import annotations
 
-__version__ = "0.6.6"
+__version__ = "0.6.7rc0"
 
 import enum
 import re

src/lib.rs

@@ -440,22 +440,24 @@ unsafe extern "C" fn module_exec(module: *mut PyObject) -> c_int {
 
     // Making time patcheable results in a performance hit.
     // Only enable it if the time_machine module is available.
-    state.time_machine_exists = match PyImport_ImportModule(c"time_machine".as_ptr()).as_result() {
-        Ok(m) => {
-            Py_DecRef(m);
-            true
-        }
-        Err(_) => {
-            PyErr_Clear();
-            false
-        }
-    };
-
+    state.time_machine_exists = unwrap_or_errcode!(time_machine_installed());
     state.time_patch = TimePatch::Unset;
 
     0
 }
 
+unsafe fn time_machine_installed() -> PyResult<bool> {
+    // Important: we don't import the `time_machine` here,
+    // because that would be slower. We only need to check its existence.
+    let find_spec = PyObject_GetAttrString(
+        steal!(PyImport_ImportModule(c"importlib.util".as_ptr()).as_result()?),
+        c"find_spec".as_ptr(),
+    );
+    let spec = call1(find_spec, steal!("time_machine".to_py()?))?;
+    defer_decref!(spec);
+    Ok(!((spec as *mut PyObject) == Py_None()))
+}
+
 unsafe fn do_visit(target: *mut PyObject, visit: visitproc, arg: *mut c_void) {
     let obj: *mut PyObject = target.cast();
     if !obj.is_null() {