langchain报的错误，OpenAI已不支持模型text-davinci-003

注意langchain里面的默认模型text-davinci-003，openai已经废弃了，所以可能会报错，需要将模型名字修改为：gpt-3.5-turbo-instruct

{“error”:{“message”:”The model `text-davinci-003` has been deprecated, learn more here: https://platform.openai.com/docs/deprecations”,”type”:”invalid_request_error”,”param”:null,”code”:”model_not_found”}}

解决办法：

需要指定模型名字model=’gpt-3.5-turbo-instruct’

llm = OpenAI(temperature=0.9,model=’gpt-3.5-turbo-instruct’)