Prompt users to run pre-commit when detecting ruff failures (#8338)

* add ruff hint

* use single quote

* revert testing changes

Author: chenmoneygithub

.github/workflows/run_tests.yml

@@ -32,9 +32,18 @@ jobs:
           echo "${{ github.workspace }}/.venv/bin" >> $GITHUB_PATH
       - name: Install dependencies
         run: uv sync --dev -p .venv --extra dev
-      - name: Ruff Fix Attempt
-        id: ruff_fix
-        run: ruff check --fix-only --diff --exit-non-zero-on-fix
+      - name: Ruff Check
+        run: |
+          ruff check --fix-only --diff --exit-non-zero-on-fix || (
+            echo ""
+            echo "❌ Ruff found issues that can be fixed automatically."
+            echo "💡 To fix them locally, run:"
+            echo ""
+            echo "    pre-commit run --all-files"
+            echo ""
+            echo "Then commit and push the changes."
+            exit 1
+          )
 
   test:
     name: Run Tests

dspy/clients/cache.py

@@ -30,6 +30,7 @@ def __init__(
         disk_cache_dir: str,
         disk_size_limit_bytes: Optional[int] = 1024 * 1024 * 10,
         memory_max_entries: Optional[int] = 1000000,
+
     ):
         """
         Args: