use GCC on linux

.github/workflows/python-package.yml

@@ -14,31 +14,42 @@ jobs:
     runs-on: Ubuntu-20.04
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: [ 3.7, 3.8, 3.9 ]
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
-      with:
+        with:
-        # Whether to checkout submodules: `true` to checkout submodules or `recursive` to
+          # Whether to checkout submodules: `true` to checkout submodules or `recursive` to
-        # recursively checkout submodules.
+          # recursively checkout submodules.
-        submodules: 'true'
+          submodules: 'true'
-        lfs: 'true'
+          lfs: 'true'
-    - name: Set up Python ${{ matrix.python-version }}
+
-      uses: actions/setup-python@v2
+      - name: Set up Python ${{ matrix.python-version }}
-      with:
+        uses: actions/setup-python@v2
-        python-version: ${{ matrix.python-version }}
+        with:
-    - name: Install dependencies
+          python-version: ${{ matrix.python-version }}
-      run: |
+
-        python -m pip install --upgrade pip
+      - name: Set up Linux
-        python -m pip install flake8 ninja Pillow click nose parameterized pybind11-stubgen
+        if: runner.os == 'Linux'
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        run: |
-    - name: Lint with flake8
+          echo "CC=gcc-10" >> $GITHUB_ENV
-      run: |
+          echo "CXX=g++-10" >> $GITHUB_ENV
-        # stop the build if there are Python syntax errors or undefined names
+
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+      - name: Install dependencies
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        run: |
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+          python -m pip install --upgrade pip
-    - name: Compile and install
+          python -m pip install flake8 ninja Pillow click nose parameterized pybind11-stubgen
-      run: python setup.py build --debug install
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Test with nose
+
-      run: nosetests tests -d --with-coverage
+      - name: Lint with flake8
+        run: |
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
+      - name: Compile and install
+        run: python setup.py build --debug install
+
+      - name: Test with nose
+        run: nosetests tests -d --with-coverage