Update app.py

app.py

@@ -50,7 +50,9 @@ def process_file(uploaded_file):
     
     if file_type == "zip":
         with zipfile.ZipFile(uploaded_file) as z:
-            return {"type": "text", "content": f"ZIP Contents:\n{'\n'.join(z.namelist())}"}
+            # Fix: Define newline character outside f-string
+            newline = "\n"
+            return {"type": "text", "content": f"ZIP Contents:{newline}{newline.join(z.namelist())}"}
     
     return {"type": "error", "content": "Unsupported file format"}