Add Python 3.12 support (#580)

* add constraint for cplex

* Add Python 3.12 support

* reno

.github/workflows/main.yml

@@ -116,7 +116,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.8, 3.9, '3.10', 3.11]
+        python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
         include:
           - os: macos-latest
             python-version: 3.8
@@ -323,6 +323,10 @@ jobs:
         with:
           name: ubuntu-latest-3.11
           path: /tmp/o311
+      - uses: actions/download-artifact@v4
+        with:
+          name: ubuntu-latest-3.12
+          path: /tmp/o312
       - uses: actions/download-artifact@v4
         with:
           name: macos-latest-3.8
@@ -344,7 +348,7 @@ jobs:
         shell: bash
       - name: Combined Deprecation Messages
         run: |
-          sort -f -u /tmp/o38/opt.dep /tmp/o39/opt.dep /tmp/o310/opt.dep /tmp/o311/opt.dep /tmp/m38/opt.dep /tmp/m311/opt.dep /tmp/w38/opt.dep /tmp/w311/opt.dep || true
+          sort -f -u /tmp/o38/opt.dep /tmp/o39/opt.dep /tmp/o310/opt.dep /tmp/o311/opt.dep /tmp/o312/opt.dep /tmp/m38/opt.dep /tmp/m311/opt.dep /tmp/w38/opt.dep /tmp/w311/opt.dep || true
         shell: bash
       - name: Coverage combine
         run: coverage3 combine /tmp/o38/opt.dat

releasenotes/notes/add-python312-support-e3e2bc0c6a10b613.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Added support for using Qiskit Optimization with Python 3.12.
+

setup.py

@@ -65,6 +65,7 @@
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Topic :: Scientific/Engineering",
     ],
     keywords="qiskit sdk quantum optimization",
@@ -73,7 +74,7 @@
     include_package_data=True,
     python_requires=">=3.8",
     extras_require={
-        "cplex": ["cplex"],
+        "cplex": ["cplex; python_version < '3.12' and platform_machine != 'arm64'"],
         "cvx": ["cvxpy"],
         "matplotlib": ["matplotlib"],
         "gurobi": ["gurobipy"],

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.3.0
-envlist = py38, py39, py310, py311, lint
+envlist = py38, py39, py310, py311, py312, lint
 skipsdist = True
 
 [testenv]