Update app.py

app.py

@@ -142,8 +142,19 @@ async def sentiment_stream(request: Request):
                     </p>
                 </div>
                 """
-                # Send the fragment using our custom event name.
-                yield f"event: sentiment_update\ndata: {html_fragment.replace('\n', '')}\n\n"
+                # ====================================================================
+                #                       FIX APPLIED HERE
+                # ====================================================================
+                # 1. First, process the string to remove newlines. This avoids a
+                #    backslash in the f-string expression, fixing the SyntaxError.
+                data_payload = html_fragment.replace('\n', '')
+                
+                # 2. Then, use the clean variable in the f-string to build the message.
+                sse_message = f"event: sentiment_update\ndata: {data_payload}\n\n"
+                
+                yield sse_message
+                # ====================================================================
+
             except (KeyError, TypeError):
                 continue # Ignore malformed payloads
 
@@ -152,5 +163,5 @@ async def sentiment_stream(request: Request):
 # --- Main execution block for local development ---
 if __name__ == "__main__":
     import uvicorn
-    # Correct run command for a file named 'app.py'
+    # Correct run command for a file named 'app.py' in the root directory.
     uvicorn.run("app:app", host="0.0.0.0", port=7860, reload=True)