Enforce Python code style

Author: diegoferigo

.github/workflows/style.yml

@@ -0,0 +1,50 @@
+name: Code Style
+
+on:
+  push:
+    branches: ["**"]
+    tags-ignore: ["**"]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+
+  black:
+
+    name: black
+    runs-on: ubuntu-latest
+
+    steps:
+
+      - name: "🔀 Checkout repository"
+        uses: actions/checkout@v2
+
+      - name: '🐍 Initialize Python'
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: "📝 Black Code Formatter"
+        uses: psf/black@stable
+        with:
+          options: --check --diff --color
+
+  isort:
+
+    name: isort
+    runs-on: ubuntu-latest
+
+    steps:
+
+      - name: "🔀 Checkout repository"
+        uses: actions/checkout@v2
+
+      - name: '🐍 Initialize Python'
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: "📝 isort"
+        uses: isort/isort-action@master
+        with:
+          configuration: --check --diff --color