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prgorama python para vectorizar un documento con ChromaDB
Browse files- vectorizar.py +39 -0
vectorizar.py
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from langchain_community.document_loaders import PyPDFLoader
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from langchain.text_splitter import CharacterTextSplitter
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from langchain_community.embeddings import BedrockEmbeddings
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from langchain_aws import ChatBedrock
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from langchain_community.vectorstores import Chroma
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#Las variables de ambiente AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_DEFAULT_REGION
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#se deben configurar en la línea de comando del sistema operativo
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def initLLM():
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return ChatBedrock(model_id="anthropic.claude-3-sonnet-20240229-v1:0")
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def initEmbedder():
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return BedrockEmbeddings(model_id='amazon.titan-embed-text-v1')
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def initChromaDB(document_chunks,embbeder):
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return Chroma.from_documents(document_chunks,embedding=embbeder, persist_directory='./data')
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def embedding(thePathFile,embedder):
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#cargar el archivo PDF
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loader = PyPDFLoader(thePathFile)
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pages = loader.load()
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print(len(pages))
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#hacer chunk de 500 caracteres
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document_splitter=CharacterTextSplitter(separator='\n', chunk_size=500, chunk_overlap=100)
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document_chunks=document_splitter.split_documents(pages)
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print(len(document_chunks))
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print(embedder)
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if embedder is not None:
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print("Cargando a la base vectorial...")
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vectorDB=initChromaDB(document_chunks, embedder)
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print("Fin carga")
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return vectorDB
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# Ejecutar la aplicación
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if __name__ == "__main__":
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bedrock_llm=initLLM()
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bedrock_embedder=initEmbedder()
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chromaDB=embedding("el principito.pdf",bedrock_embedder)
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print(chromaDB)
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