enforce black / isort

.github/workflows/check-style.yaml

@@ -0,0 +1,26 @@
+name: Check style
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  black:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: psf/black@stable
+        with:
+          options: "--check --diff"
+          version: "22.3.0"
+  isort:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+      - uses: isort/isort-action@master
+        with:
+          isortVersion: "5.10.1"