Add most basic CI lint step

.github/workflows/ci.yml

@@ -7,6 +7,9 @@ on:
   create:
     tags:
       - "*"
+  pull_request:
+    branches:
+      - "main"
 
 env:
   REGISTRY: ghcr.io
@@ -50,9 +53,21 @@ jobs:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Build and push
+      - name: Build
+        if: github.event_name == 'pull_request'
         id: build
         uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          file: ./Dockerfile
+          labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=docker,name=${{ env.REGISTRY }}/${{ steps.lower-repo.outputs.IMAGE_NAME }}
+          build-args: BASE=${{ matrix.base }}
+      - name: Build and push
+        if: github.event_name != 'pull_request'
+        id: build_push
+        uses: docker/build-push-action@v5
         with:
           context: .
           platforms: ${{ matrix.platform }}
@@ -61,11 +76,13 @@ jobs:
           outputs: type=image,name=${{ env.REGISTRY }}/${{ steps.lower-repo.outputs.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
           build-args: BASE=${{ matrix.base }}
       - name: Export digest
+        if: github.event_name != 'pull_request'
         run: |
           mkdir -p /tmp/digests
           digest="${{ steps.build.outputs.digest }}"
           touch "/tmp/digests/${digest#sha256:}"          
       - name: Upload digest
+        if: github.event_name != 'pull_request'
         uses: actions/upload-artifact@v3
         with:
           name: digests
@@ -75,6 +92,7 @@ jobs:
 
   merge:
     runs-on: ubuntu-latest
+    if: github.event_name != 'pull_request'
     permissions:
       contents: read
       packages: write
@@ -110,3 +128,21 @@ jobs:
       - name: Inspect image
         run: |
           docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ steps.lower-repo.outputs.IMAGE_NAME }}:${{ steps.meta.outputs.version }}          
+
+  lint:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.12'
+      - name: Install pyflakes
+        run: |
+          python -m pip install --upgrade pip
+          pip install pyflakes
+      - name: Run pyflakes
+        run: |
+          pyflakes ./*.py

HoymilesZeroExport.py

@@ -17,7 +17,6 @@
 __author__ = "Tobias Kraft"
 __version__ = "1.94"
 
-import requests
 import time
 from requests.sessions import Session
 from requests.auth import HTTPBasicAuth
@@ -826,7 +825,7 @@ def GetJson(self, path):
         return session.get(url, timeout=10).json()
 
     def GetPowermeterWatts(self):
-        ParsedData = self.GetJson(f'/rest')
+        ParsedData = self.GetJson('/rest')
         return CastToInt(ParsedData['saldo'])
 
 class DTU(Powermeter):