PYTHON_CODE="""def hello_langchain():print("Hello, Langchain!")# Call the functionhello_langchain()"""python_splitter=RecursiveCharacterTextSplitter.from_language(language=Language.PYTHON,chunk_size=50,chunk_overlap=0)python_docs=python_splitter.create_documents([PYTHON_CODE])python_docs Markdown...
在RAG项目中,我正在使用langchain。当我使用查询输入运行 QA 链时,此错误不断出现: ---> 结果 = qa_chain({'query': 问题}) ValueError:缺少一些输入键:{'...
fromlangchain.chainsimportRetrievalQAfromlangchain.llmsimportOpenAI llm = OpenAI(temperature=0) qa = RetrievalQA.from_chain_type(llm=llm, chain_type="stuff", retriever=vectorstore.as_retriever()) query ="请根据最新的劳动法规定,起草一份关于员工加班补偿的规章制度。"print(qa.run(query)) 这段代码...
You can find this test in the libs/langchain/tests/unit_tests/chains/test_qa_with_sources.py file. However, I wasn't able to find specific changes made to the RetrievalQAWithSourcesChain in the LangChain updates after version 0.0.238 that could have affected the return of sources. As a ...
If you've checked all of these and the issue still persists, it might be helpful to provide more information about your environment, such as the version of LangChain you're using, the version of Python, and any other libraries that might be relevant. This will help us better understand th...
模板中缺少{context}。
生成式检索是一种利用生成式语言模型的全新信息检索方法。不同于依赖外部索引的传统方法，生成式检索利用...
After we rolled out the chatbot I introduced in mylast article about Langchain and Pythonto our customers, the first wish was: can't we get a real chat functionality like in Chat-GPT? This has several advantages; you can refine questions, clear up misunderstandings and get much b...
from langchain.chains.question_answeringimportload_qa_chainimportos# set OpenAI key as the environmet variableos.environ['OPENAI_API_KEY']='Your_openai_key'# Load the embedding and LLM modelembeddings_model=OpenAIEmbeddings()llm=ChatOpenAI(model_name="gpt-3.5-turbo", max_tokens=200) ...
Issue you'd like to raise. I am getting this error while setting a RetrievalQA using FAISS, the code is as follows: Using the following version on a MAC : python 3.10, Faiss_cpu 1.7.4, langchain 0.0.310 embeddings_model_name = os.environ...