add windows

Author: agramfort

.github/workflows/pythonpackage.yml

@@ -48,7 +48,34 @@ jobs:
         codecov
 
   macos_win:
-    runs-on: [macOS-latest, windows-2019]
+    runs-on: macOS-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: [3.7]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install pytest "pytest-cov<2.6"
+        pip install -U "sklearn"
+    - name: Install POT
+      run: |
+        pip install -e .
+    - name: Run tests
+      run: |
+        python -m pytest -v test/ ot/ --doctest-modules --ignore ot/gpu/ --cov=ot
+
+
+  windows:
+    runs-on: windows-2019
     strategy:
       max-parallel: 4
       matrix: