Update app.py

app.py

@@ -27,17 +27,47 @@ def respond(
 
     response = ""
 
-    for message in client.chat_completion(
-        messages,
-        max_tokens=max_tokens,
-        stream=True,
-        temperature=temperature,
-        top_p=top_p,
-    ):
-        token = message.choices[0].delta.content
-
-        response += token
-        yield response
+    try:
+        for message in client.chat_completion(
+            messages,
+            max_tokens=max_tokens,
+            stream=True,
+            temperature=temperature,
+            top_p=top_p,
+        ):
+            # Ensure the message has a valid structure
+            if not message or not isinstance(message, dict):
+                continue
+            
+            try:
+                # Extract content and finish reason
+                content = message.choices[0].delta.content
+                finish_reason = message.choices[0].finish_reason
+
+                # Check if the content is empty
+                if content.strip() == "":
+                    # If the finish reason is 'stop', it's expected and we can break the loop
+                    if finish_reason == "stop":
+                        print("Stream ended normally.")
+                        break
+                    else:
+                        print("Received unexpected empty content, skipping...")
+                        continue
+
+                response += content
+                yield response
+
+            except (AttributeError, IndexError, KeyError) as e:
+                print(f"Error processing message: {e}")
+                continue
+
+    except Exception as e:
+        print(f"Unexpected error: {e}")
+        yield "An error occurred while generating the response."
+
+    # Final check if the response is empty
+    if response.strip() == "":
+        yield "No response generated. Please try again or adjust the settings."
 
 
 """