Update app.py

app.py

@@ -501,24 +501,24 @@ def handsome_chat_completions():
                                     if delta.get("reasoning_content") is not None:
                                         if first_reasoning_chunk:
                                             openai_chunk["choices"][0]["delta"]["content"] = "<think>\n"
-                                            openai_chunk["choices"][0]["delta"]["reasoning_content"] = "null"
+                                            openai_chunk["choices"][0]["delta"]["reasoning_content"] = None
                                             yield f"data: {json.dumps(openai_chunk)}\n\n"
                                             first_reasoning_chunk = False
                                         
                                         openai_chunk["choices"][0]["delta"]["content"] = delta["reasoning_content"]
-                                        openai_chunk["choices"][0]["delta"]["reasoning_content"] = "null"
+                                        openai_chunk["choices"][0]["delta"]["reasoning_content"] = None
                                         yield f"data: {json.dumps(openai_chunk)}\n\n"
                                         reasoning_content_accumulated += delta["reasoning_content"]
 
                                     if delta.get("content") is not None:
                                         if not first_reasoning_chunk:
                                             openai_chunk["choices"][0]["delta"]["content"] = "\n</think>\n"
-                                            openai_chunk["choices"][0]["delta"]["reasoning_content"] = "null"
+                                            openai_chunk["choices"][0]["delta"]["reasoning_content"] = null
                                             yield f"data: {json.dumps(openai_chunk)}\n\n"
                                             first_reasoning_chunk = True
                                         
                                         openai_chunk["choices"][0]["delta"]["content"] = delta["content"]
-                                        openai_chunk["choices"][0]["delta"]["reasoning_content"] = "null"
+                                        openai_chunk["choices"][0]["delta"]["reasoning_content"] = None
                                         yield f"data: {json.dumps(openai_chunk)}\n\n"
                                         content_accumulated += delta["content"]