Test Python 3.13 pre-release

.ci/install.sh

@@ -28,7 +28,8 @@ fi
 
 python3 -m pip install --upgrade pip
 python3 -m pip install --upgrade wheel
-PYTHONOPTIMIZE=0 python3 -m pip install cffi
+# TODO Update condition when cffi supports 3.13
+if ! [[ "$GHA_PYTHON_VERSION" == "3.13" ]]; then PYTHONOPTIMIZE=0 python3 -m pip install cffi ; fi
 python3 -m pip install coverage
 python3 -m pip install defusedxml
 python3 -m pip install olefile
@@ -38,7 +39,8 @@ python3 -m pip install -U pytest-timeout
 python3 -m pip install pyroma
 
 if [[ $(uname) != CYGWIN* ]]; then
-    python3 -m pip install numpy
+    # TODO Update condition when NumPy supports 3.13
+    if ! [[ "$GHA_PYTHON_VERSION" == "3.13" ]]; then python3 -m pip install numpy ; fi
 
     # PyQt6 doesn't support PyPy3
     if [[ $GHA_PYTHON_VERSION == 3.* ]]; then

.github/workflows/macos-install.sh

@@ -5,7 +5,9 @@ set -e
 brew install libtiff libjpeg openjpeg libimagequant webp little-cms2 freetype libraqm
 export PKG_CONFIG_PATH="/usr/local/opt/openblas/lib/pkgconfig"
 
-PYTHONOPTIMIZE=0 python3 -m pip install cffi
+# TODO Update condition when cffi supports 3.13
+if ! [[ "$GHA_PYTHON_VERSION" == "3.13" ]]; then PYTHONOPTIMIZE=0 python3 -m pip install cffi ; fi
+
 python3 -m pip install coverage
 python3 -m pip install defusedxml
 python3 -m pip install olefile
@@ -14,7 +16,8 @@ python3 -m pip install -U pytest-cov
 python3 -m pip install -U pytest-timeout
 python3 -m pip install pyroma
 
-python3 -m pip install numpy
+# TODO Update condition when NumPy supports 3.13
+if ! [[ "$GHA_PYTHON_VERSION" == "3.13" ]]; then python3 -m pip install numpy ; fi
 
 # extra test images
 pushd depends && ./install_extra_test_images.sh && popd

.github/workflows/test-windows.yml

@@ -32,7 +32,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["pypy3.10", "pypy3.9", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["pypy3.10", "pypy3.9", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     timeout-minutes: 30
 
@@ -59,6 +59,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
         cache: pip
         cache-dependency-path: ".github/workflows/test-windows.yml"
 

.github/workflows/test.yml

@@ -41,6 +41,7 @@ jobs:
         python-version: [
           "pypy3.10",
           "pypy3.9",
+          "3.13",
           "3.12",
           "3.11",
           "3.10",
@@ -64,6 +65,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
         cache: pip
         cache-dependency-path: ".ci/*.sh"