Introduce pyproject.toml

Author: sebheger

.github/workflows/github-ci.yml

@@ -15,13 +15,13 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v3
         with:
-          python-version: 3.7
+          python-version: 3.7.12
 
       - name: Upgrade pip
         run: python -m pip install --upgrade pip
 
       - name: Install dependencies
-        run: python -m pip install flake8 black
+        run: python -m pip install "flake8==4.0.1" "black==22.3.0"
 
       - name: check style with black
         run: python -m black mip --line-length=89 --check --diff
@@ -73,13 +73,12 @@ jobs:
         path: ${{ steps.pip-cache.outputs.dir }}
         key: ${{ runner.os }}-${{ matrix.python-version }}-pythonpip
 
-    - name: Install dependencies CPython
-      if: ${{ matrix.python-version != 'pypy-3.9' }}
-      run: python -m pip install cffi pytest networkx numpy matplotlib gurobipy
+    - name: Install dependencies from requirements.txt
+      run: python -m pip install -r requirements.txt
 
-    - name: Install dependencies PyPy
-      if: ${{ matrix.python-version == 'pypy-3.9' }}
-      run: python -m pip install cffi pytest networkx numpy
+    - name: Install additional requirements (CPython)
+      if: ${{ matrix.python-version != 'pypy-3.9' }}
+      run: python -m pip install "matplotlib==3.5.2" "gurobipy==9.5.1"
 
     - name: Install mip
       run: python -m pip install .

.gitignore

@@ -4,7 +4,7 @@ __pycache__/
 *$py.class
 
 # Generated by setuptools_scm
-mip/version.py
+mip/_version.py
 
 # C extensions
 *.so