ollama/examples/langchain-python-rag-websummary/main.py

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from langchain_community.llms import Ollama
from langchain_community.document_loaders import WebBaseLoader
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from langchain.chains.summarize import load_summarize_chain
loader = WebBaseLoader("https://ollama.com/blog/run-llama2-uncensored-locally")
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docs = loader.load()
llm = Ollama(model="llama3.2")
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chain = load_summarize_chain(llm, chain_type="stuff")
result = chain.invoke(docs)
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print(result)