Update app.py

app.py

@@ -76,8 +76,12 @@ async def complete(
             seed=seed,
             stream=True
         )
-        for item in output:
-            print(item['choices'][0])#['text'], end='')
+        for chunk in output:
+            delta = chunk['choices'][0]['delta']
+            if 'role' in delta:
+                print(delta['role'], end=': ')
+            elif 'content' in delta:
+                print(delta['content'], end='')
         et = time()
         output["time"] = et - st
         #return output