python: Add python 3.12 support

.github/workflows/amd64_linux_bazel.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
       fail-fast: false
     env:
       CC:  gcc-12

.github/workflows/amd64_macos_bazel.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
       fail-fast: false
     steps:
       - name: Check out repository code

.github/workflows/amd64_macos_cmake_python.yml

@@ -26,7 +26,7 @@ jobs:
     - name: Check swig
       run: swig -version
     - name: Update Path
-      run: echo "$HOME/Library/Python/3.11/bin" >> $GITHUB_PATH
+      run: echo "$HOME/Library/Python/3.12/bin" >> $GITHUB_PATH
     - name: Check cmake
       run: cmake --version
     - name: Configure

.github/workflows/amd64_windows_bazel.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         runner: [windows-2022, windows-2019]
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
       fail-fast: false # Don't cancel all jobs if one fails.
     runs-on: ${{ matrix.runner }}
     #runs-on: windows-latest

ortools/python/setup.py.in

@@ -102,6 +102,7 @@ setup(
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Programming Language :: C++',
         'Programming Language :: Python :: Implementation :: CPython',
         'Topic :: Office/Business :: Scheduling',

tools/release/build_delivery_macos.sh

@@ -212,9 +212,9 @@ function build_python() {
   command -v swig | xargs echo "swig: " | tee -a build.log
 
   if [[ ${PLATFORM} == "arm64" ]]; then
-    local -r PY=(3.8 3.9 3.10 3.11)
+    local -r PY=(3.8 3.9 3.10 3.11 3.12)
   else
-    local -r PY=(3.8 3.9 3.10 3.11)
+    local -r PY=(3.8 3.9 3.10 3.11 3.12)
   fi
 
   for PY_VERSION in "${PY[@]}"; do

tools/release/build_delivery_win.cmd

@@ -272,7 +272,7 @@ echo Python build seems up to date, skipping
 exit /B 0
 )
 
-for %%v in (8 9 10 11) do (
+for %%v in (8 9 10 11 12) do (
   title Build Python 3.%%v
   :: Check Python
   which.exe C:\python3%%v-64\python.exe || exit 1
@@ -312,7 +312,7 @@ del /s /f /q temp_dotnet
 rmdir /s /q temp_dotnet
 del /s /f /q temp_java
 rmdir /s /q temp_java
-for %%v in (8 9 10 11) do (
+for %%v in (8 9 10 11 12) do (
   del /s /f /q temp_python3%%v
   rmdir /s /q temp_python3%%v
 )

tools/release/test_delivery_macos.sh

@@ -23,9 +23,9 @@ command -v make | xargs echo "make: " | tee -a test.log
 command -v swig | xargs echo "swig: " | tee -a test.log
 # python
 if [[ ${PLATFORM} == "arm64" ]]; then
-  local -r PY=(3.8 3.9 3.10 3.11)
+  local -r PY=(3.8 3.9 3.10 3.11 3.12)
 else
-  local -r PY=(3.8 3.9 3.10 3.11)
+  local -r PY=(3.8 3.9 3.10 3.11 3.12)
 fi
 
 for i in "${PY[@]}"; do

tools/release/test_delivery_win.cmd

@@ -153,3 +153,36 @@ echo Testing ortools Python3.11... | tee.exe -a test.log
 echo Testing ortools Python3.11...DONE | tee.exe -a test.log
 
 FOR %%i IN (%TEMP_DIR%\ortools\dist\*.whl) DO copy %%i .
+
+REM ###################
+REM ##  PYTHON 3.12  ##
+REM ###################
+echo Cleaning Python... | tee.exe -a test.log
+make.exe clean_python WINDOWS_PATH_TO_PYTHON=c:\python312-64
+echo Cleaning Python...DONE | tee.exe -a test.log
+
+REM make.exe python WINDOWS_PATH_TO_PYTHON=c:\python312-64 || exit 1
+REM echo make python3.12: DONE | tee.exe -a build.log
+REM make.exe test_python WINDOWS_PATH_TO_PYTHON=c:\python312-64 || exit 1
+REM echo make test_python3.12: DONE | tee.exe -a build.log
+echo Rebuild Python3.12 pypi archive... | tee.exe -a test.log
+make.exe package_python WINDOWS_PATH_TO_PYTHON=c:\python312-64 || exit 1
+echo Rebuild Python3.12 pypi archive...DONE | tee.exe -a test.log
+
+echo Creating Python3.12 venv... | tee.exe -a test.log
+set PATH=c:\python312-64;c:\python312-64\Scripts;%PATH%
+python -m pip install virtualenv
+set TEMP_DIR=temp_python312
+python -m virtualenv %TEMP_DIR%\venv
+set PATH=%LOCAL_PATH%
+echo Creating Python3.12 venv...DONE | tee.exe -a test.log
+
+echo Installing ortools Python3.12 venv... | tee.exe -a test.log
+FOR %%i IN (%TEMP_DIR%\ortools\dist\*.whl) DO %TEMP_DIR%\venv\Scripts\python -m pip install %%i
+echo Installing ortools Python3.12 venv...DONE | tee.exe -a test.log
+
+echo Testing ortools Python3.12... | tee.exe -a test.log
+%TEMP_DIR%\venv\Scripts\python cmake\samples\python\sample.py 2>&1 | tee.exe -a test.log
+echo Testing ortools Python3.12...DONE | tee.exe -a test.log
+
+FOR %%i IN (%TEMP_DIR%\ortools\dist\*.whl) DO copy %%i .