Add Python 3.15 support

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Build wheels
-        run: pipx run cibuildwheel==2.21.2
+        run: pipx run cibuildwheel==4.3.1
 
       - uses: actions/upload-artifact@v4
         with:

.github/workflows/build_deploy.yml

@@ -25,7 +25,7 @@ jobs:
           pip install babel
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v3.3.1
+        uses: pypa/cibuildwheel@v4.3.1
         env:
           CIBW_BEFORE_BUILD: pip install babel && pybabel compile -d plotpy/locale -D plotpy
 

.github/workflows/test_pyqt5.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.13", "3.14"]
+        python-version: ["3.9", "3.13", "3.14", "3.15"]
 
     steps:
     - uses: actions/checkout@v4

doc/dev/platforms.rst

@@ -7,7 +7,7 @@ The following sections describe the reference platforms for the project.
 
 .. note::
 
-    The officially supported Python versions are 3.9, 3.10, 3.11, 3.12 and 3.13.
+    The officially supported Python versions are 3.9 through 3.15.
 
     The officially supported Qt binding is PyQt5. However, efforts have been
     made and will continue to be made to support PyQt6 and PySide6 as well.

plotpy/tests/unit/test_python_support.py

@@ -0,0 +1,17 @@
+# Licensed under the terms of the BSD 3-Clause
+# (see plotpy/LICENSE for details)
+
+"""Tests for supported Python versions in package metadata."""
+
+from __future__ import annotations
+
+from importlib.metadata import metadata
+
+import pytest
+
+
+@pytest.mark.parametrize("minor", range(9, 16))
+def test_python_classifiers(minor):
+    """Check that package metadata advertises every supported Python version."""
+    classifiers = metadata("PlotPy").get_all("Classifier")
+    assert f"Programming Language :: Python :: 3.{minor}" in classifiers

pyproject.toml

@@ -27,6 +27,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Topic :: Scientific/Engineering",
     "Topic :: Scientific/Engineering :: Image Processing",
     "Topic :: Scientific/Engineering :: Human Machine Interfaces",
@@ -117,5 +118,5 @@ line-ending = "auto"              # Like Black, automatically detect the appropr
 convention = "google"
 
 [tool.cibuildwheel]
-build = ["cp39-*", "cp310-*", "cp311-*", "cp312-*", "cp313-*", "cp314-*"]
+build = ["cp39-*", "cp310-*", "cp311-*", "cp312-*", "cp313-*", "cp314-*", "cp315-*"]
 skip = ["*-manylinux_i686", "*-musllinux*"]