support for python3.13

Author: miguelhisojo

.github/workflows/github-ci.yml

@@ -10,12 +10,12 @@ jobs:
 
     steps:
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.11
+          python-version: 3.13
 
       - name: Upgrade pip
         run: python -m pip install --upgrade pip
@@ -39,7 +39,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.9-v7.3.15"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12","3.13", "pypy3.9-v7.3.15"]
         os: [macos-11, macos-12, ubuntu-20.04, ubuntu-22.04, windows-2019, windows-2022]
         exclude:
           # temporarily exclude pypy3 on mac-os as there failing tests caused by bug on cbc side
@@ -50,14 +50,22 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         architecture: x64
-        cache: 'pip'
+
+    - name: Cache pip dependencies
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('**/pyproject.toml') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-${{ matrix.python-version }}-
+          ${{ runner.os }}-pip-
 
     - name: Check python version
       run: python -c "import sys; import platform; print('Python %s implementation %s on %s' % (sys.version, platform.python_implementation(), sys.platform))"

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "mip"
 description = "Python tools for Modeling and Solving Mixed-Integer Linear Programs (MIPs)"
 readme = "README.md"
-requires-python = ">=3.7,<3.13"
+requires-python = ">=3.7,<3.14"
 license = {file = "LICENSE"}
 authors = [
     {name="Tulio A.M. Toffolo", email="[email protected]"},
@@ -25,7 +25,7 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "License :: OSI Approved :: Eclipse Public License 2.0 (EPL-2.0)",
     "Operating System :: OS Independent",
-    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Topic :: Scientific/Engineering :: Mathematics"
@@ -41,7 +41,7 @@ numpy = [
     "numpy==1.21.*; python_version=='3.7'"
 ]
 gurobi = ["gurobipy>=8"]
-highs = ["highspy>=1.5.3; python_version<='3.11'"]
+highs = ["highspy>=1.6.0"]
 test = [
     "pytest>=7.4",
     "networkx==2.8.8; python_version>='3.8'",