Fix pylint.yml

Author: NarendraYSF

.github/workflows/pylint.yml

@@ -1,6 +1,10 @@
 name: Pylint
 
-on: [push]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
 
 jobs:
   build:
@@ -9,15 +13,25 @@ jobs:
       matrix:
         python-version: ["3.8", "3.9", "3.10"]
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install pylint
-    - name: Analysing the code with pylint
-      run: |
-        pylint $(git ls-files '*.py')
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          pip install pylint
+
+      - name: Analysing the code with pylint
+        run: |
+          FILES=$(git ls-files '*.py')
+          if [ -n "$FILES" ]; then
+            pylint $FILES
+          else
+            echo "No Python files to lint."
+          fi