Now picks up Windows Ipopt binary files that are adjacent to setup.py (restores regression)

.github/workflows/docs.yml

@@ -30,7 +30,7 @@ jobs:
           channels: conda-forge
           miniforge-variant: Mambaforge
       - name: Install basic dependencies
-        run: mamba install -y -v lapack "libblas=*=*netlib" cython>=0.26 "ipopt=${{ matrix.ipopt-version }}" numpy>=1.15 pkg-config>=0.29.2 setuptools>=39.0 --file docs/requirements.txt
+        run: mamba install -y -v lapack "libblas=*=*netlib" "cython>=0.26,<3" "ipopt=${{ matrix.ipopt-version }}" numpy>=1.15 pkg-config>=0.29.2 setuptools>=39.0 --file docs/requirements.txt
       - name: Install CyIpopt
         run: |
           rm pyproject.toml

.github/workflows/tests.yml

@@ -35,7 +35,8 @@ jobs:
           miniforge-variant: Mambaforge
       - name: Install basic dependencies
         run: |
-          mamba install -q -y lapack "libblas=*=*netlib" cython>=0.26 "ipopt=${{ matrix.ipopt-version }}" numpy>=1.15 pkg-config>=0.29.2 setuptools>=39.0
+          mamba install -q -y lapack "libblas=*=*netlib" "ipopt=${{ matrix.ipopt-version }}" "numpy>=1.15" "pkg-config>=0.29.2" "setuptools>=39.0" "cython=0.29.*"
+      - run: echo "IPOPTWINDIR=USECONDAFORGEIPOPT" >> $GITHUB_ENV
       - name: Install CyIpopt
         run: |
           rm pyproject.toml
@@ -45,7 +46,7 @@ jobs:
         run: |
           python -c "import cyipopt"
           mamba remove lapack
-          mamba install -q -y cython>=0.26 "ipopt=${{ matrix.ipopt-version }}" numpy>=1.15 pkg-config>=0.29.2 setuptools>=39.0 pytest>=3.3.2
+          mamba install -q -y "ipopt=${{ matrix.ipopt-version }}" "numpy>=1.15" "pkg-config>=0.29.2" "setuptools>=39.0" "pytest>=3.3.2" "cython=0.29.*"
           mamba list
           pytest
       - name: Test with pytest and scipy, new ipopt
@@ -54,6 +55,6 @@ jobs:
         # Ipopt needed different libfortrans.
         if: (matrix.ipopt-version != '3.12' && matrix.python-version != '3.11') || (matrix.ipopt-version != '3.12' && matrix.python-version != '3.10' && matrix.os != 'macos-latest')
         run: |
-          mamba install -q -y -c conda-forge "cython>=0.26" "ipopt=${{ matrix.ipopt-version }}" "numpy>=1.15" "pkg-config>=0.29.2" "setuptools>=39.0" "scipy=1.9.*" "pytest>=3.3.2"
+          mamba install -q -y -c conda-forge "ipopt=${{ matrix.ipopt-version }}" "numpy>=1.15" "pkg-config>=0.29.2" "setuptools>=39.0" "scipy=1.9.*" "pytest>=3.3.2" "cython=0.29.*"
           mamba list
           pytest

.github/workflows/windows.yml

@@ -0,0 +1,26 @@
+name: windows
+
+on: [push, pull_request]
+
+# cancels prior builds for this workflow when new commit is pushed
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Manually install on Windows with Ipopt binaries
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - run: python -m pip install numpy "cython<3" setuptools
+      - run: Invoke-WebRequest -Uri "https://github.com/coin-or/Ipopt/releases/download/releases%2F3.13.3/Ipopt-3.13.3-win64-msvs2019-md.zip" -OutFile "Ipopt-3.13.3-win64-msvs2019-md.zip"
+      - run: 7z x Ipopt-3.13.3-win64-msvs2019-md.zip
+      - run: mv Ipopt-3.13.3-win64-msvs2019-md/* .
+      - run: python setup.py install
+      - run: python examples/hs071.py

setup.py

@@ -185,10 +185,18 @@ def handle_ext_modules_general_os():
     # environment variable is set to USECONDAFORGEIPOPT then this setup will be
     # run.
     if sys.platform == "win32" and ipoptdir == "USECONDAFORGEIPOPT":
+        print('Using Conda Forge Ipopt on Windows.')
         ext_module_data = handle_ext_modules_win_32_conda_forge_ipopt()
     elif sys.platform == "win32" and ipoptdir:
+        print('Using Ipopt in {} directory on Windows.'.format(ipoptdir))
+        ext_module_data = handle_ext_modules_win_32_other_ipopt()
+    elif sys.platform == "win32" and not ipoptdir:
+        ipoptdir = os.path.abspath(os.path.dirname(__file__))
+        msg = 'Using Ipopt adjacent to setup.py in {} on Windows.'
+        print(msg.format(ipoptdir))
         ext_module_data = handle_ext_modules_win_32_other_ipopt()
     else:
+        print('Using Ipopt found with pkg-config.')
         ext_module_data = handle_ext_modules_general_os()
     EXT_MODULES, DATA_FILES, include_package_data = ext_module_data
     # NOTE : The `name` kwarg here is the distribution name, i.e. the name that