Fix failing GitHub actions and add separate linting action

.github/workflows/lint.yml

@@ -0,0 +1,27 @@
+name: Lint
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+      - name: Install dependencies
+        run: |
+          pip install -U -r requirements.txt
+      - name: Run linters
+        run: |
+          scripts/lint

.github/workflows/test.yml

@@ -13,26 +13,17 @@ jobs:
       matrix:
         python-version: ["3.7", "3.8", "3.9", "3.10"]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: actions/cache@v2
-        name: Configure pip caching
-        with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
+          cache: 'pip'
       - name: Install dependencies
         run: |
           pip install -U -r requirements.txt
       - name: Run tests
         run: |
           scripts/test
-      - name: Run linters
-        run: |
-          scripts/lint
       - name: Run codecov
         run: codecov

mangum/handlers/alb.py

@@ -104,7 +104,6 @@ def body(self) -> bytes:
 
     @property
     def scope(self) -> Scope:
-
         headers = transform_headers(self.event)
         list_headers = [list(x) for x in headers]
         # Unique headers. If there are duplicates, it will use the last defined.

mangum/protocols/http.py

@@ -93,7 +93,6 @@ async def send(self, message: Message) -> None:
             self.state is HTTPCycleState.RESPONSE
             and message["type"] == "http.response.body"
         ):
-
             body = message.get("body", b"")
             more_body = message.get("more_body", False)
             self.buffer.write(body)

mangum/protocols/lifespan.py

@@ -98,14 +98,12 @@ async def run(self) -> None:
     async def receive(self) -> Message:
         """Awaited by the application to receive ASGI `lifespan` events."""
         if self.state is LifespanCycleState.CONNECTING:
-
             # Connection established. The next event returned by the queue will be
             # `lifespan.startup` to inform the application that the connection is
             # ready to receive lfiespan messages.
             self.state = LifespanCycleState.STARTUP
 
         elif self.state is LifespanCycleState.STARTUP:
-
             # Connection shutting down. The next event returned by the queue will be
             # `lifespan.shutdown` to inform the application that the connection is now
             # closing so that it may perform cleanup.