New Github Action for testing imports (python-graphblas#357)

* New Github Action for testing imports

* Specify Python version here too

.github/workflows/imports.yml

@@ -0,0 +1,22 @@
+name: Test imports
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test_imports:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - run: python -m pip install --upgrade pip
+      - run: pip install -e .
+      - run: ./scripts/test_imports.sh

.github/workflows/lint.yml

@@ -16,4 +16,6 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
       - uses: pre-commit/[email protected]

.github/workflows/test_and_build.yml

@@ -83,10 +83,6 @@ jobs:
               mamba install -c conda-forge python-suitesparse-graphblas
           fi
           python setup.py develop --no-deps
-      - name: Verify build
-        run: |
-          # Make sure all top-level imports work
-          ./scripts/test_imports.sh
       - name: Unit tests
         run: |
           coverage run --branch -m pytest ${{ matrix.cfg.testopts }} -v