Model I/O | ️ LangChain 这个讲的就是模型I/O流程 传输数据先format llm 式纯文本 输出字符串 chatModel 输出message 输出解析器,将输出内容进行解析。 json 或 xml 等。 string StrOutputParser 输出解析器 字符串输出处理, 可以直接获取到content的内容。 from langchain_core.output_parsers import StrOut...
而这三部分分别对应LangChain中最基础也是最重要的三个概念 今天我们要介绍的是输出部分,也就是输出解析器(Output Parsers)。 简介 LLM的输出为文本,但在程序中除了显示文本,可能希望获得更结构化的数据。这就是输出解析器(Output Parsers)的用武之地。 LangChain为输出解析器提供了基础类BaseOutputParser。不同的输...
In language models, the raw output is often just the beginning. While these outputs provide valuable insights, they often need to be structured, formatted, or parsed to be useful in real-world applications. Enter LangChain’s output parsers — a powerful toolset to transform raw text into...
编写代码 fromlangchain_core.output_parsersimportJsonOutputParserfromlangchain_openai.chat_modelsimportChatOpenAIasyncdefmain():model=ChatOpenAI(model="gpt-3.5-turbo",)chain=(model|JsonOutputParser())# Due to a bug in older versions of Langchain, JsonOutputParser did not stream results from some ...
from langchain_core.output_parsers import JsonOutputParserfrom langchain_openai.chat_models import ChatOpenAIasync def main():model = ChatOpenAI(model="gpt-3.5-turbo",)chain = (model | JsonOutputParser()) # Due to a bug in older versions of Langchain, JsonOutputParser did not stream result...
from langchain_core.output_parsers import JsonOutputParser from langchain_openai.chat_models import ChatOpenAI async def main(): model = ChatOpenAI( model="gpt-3.5-turbo", ) chain = ( model | JsonOutputParser() ) # Due to a bug in older versions of Langchain, JsonOutputParser did not...
fromlangchain.output_parsersimportResponseSchema,StructuredOutputParser# 建立 customer_review 的上下文,customer_review ="""\ This leaf blower is pretty amazing. It has four settings:\ candle blower, gentle breeze, windy city, and tornado. \ ...
#从langchain库导入所需的模块fromlangchain.chat_modelsimportChatOpenAIfromlangchain.output_parsersimportOutputFixingParser# 设置OpenAI API密钥importos os.environ["OPENAI_API_KEY"]='你的OpenAI API Key'# 使用OutputFixingParser创建一个新的解析器,该解析器能够纠正格式不正确的输出new_parser=OutputFixingParse...
docs/snippets/modules/model_io/output_parsers/structured.mdx docs/extras/modules/chains/popular/openai_functions.ipynb docs/extras/modules/chains/additional/openai_functions_retrieval_qa.ipynb langchain/chains/openai_functions/qa_with_structure.py langchain/chains/openai_functions/base.py This response is...
File"/Users/oresttokovenko/Desktop/miscellaneous/projects/anki/anki-env/lib/python3.10/site-packages/langchain/output_parsers/pydantic.py", line 31,inparse raise OutputParserException(msg) langchain.schema.output_parser.OutputParserException: Failed to parse FlashCard from completion Here are the flashca...