Error: 不完整的流式响应 - 预期更多数据但连接意外关闭。

解决方案

1. 为流中断实现带指数退避的重试逻辑：
   import time
   from openai import OpenAI
   
   client = OpenAI()
   max_retries = 3
   for attempt in range(max_retries):
       try:
           stream = client.chat.completions.create(
               model='gpt-4',
               messages=[{'role': 'user', 'content': '你好'}],
               stream=True
           )
           for chunk in stream:
               print(chunk.choices[0].delta.content or '', end='')
           break
       except Exception as e:
           if 'Incomplete stream' in str(e):
               wait = 2 ** attempt
               print(f'{wait}秒后重试...')
               time.sleep(wait)
           else:
               raise

2. 使用更健壮的HTTP客户端，带有连接池和保持活动连接：
   from httpx import Client, Limits
   
   limits = Limits(max_keepalive_connections=5, keepalive_expiry=30.0)
   with Client(limits=limits) as client:
       try:
           response = client.post(
               'https://api.openai.com/v1/chat/completions',
               json={'model': 'gpt-4', 'messages': [{'role': 'user', 'content': '你好'}], 'stream': True},
               headers={'Authorization': 'Bearer YOUR_API_KEY'},
               timeout=30.0
           )
           for line in response.iter_lines():
               if line:
                   print(line)
       except Exception as e:
           print(f'流错误: {e}')