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database_preparation.py
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database_preparation.py
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import os
from chromadb.config import Settings
from dotenv import load_dotenv
from langchain.chat_models.gigachat import GigaChat
from langchain.document_loaders.text import TextLoader
from langchain.schema import HumanMessage
from langchain.text_splitter import RecursiveCharacterTextSplitter
from langchain.vectorstores.chroma import Chroma
from langchain_community.embeddings.gigachat import GigaChatEmbeddings
# Read .env file
load_dotenv()
# Изменить encoding при необходимости
loader = TextLoader(
"./example.txt",
encoding='utf-8'
)
documents = loader.load()
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=200,
chunk_overlap=0,
)
documents = text_splitter.split_documents(documents)
embeddings = GigaChatEmbeddings(
credentials=os.environ['GIGACHAT_CRED'],
verify_ssl_certs=False, scope='GIGACHAT_API_CORP'
)
db = Chroma.from_documents(
documents,
embeddings,
# client_settings=Settings(anonymized_telemetry=False),
persist_directory='./data'
)
db.persist()
print("База данных успешно создана и сохранена.")
print(f"Место нахождения базы данных: {db._persist_directory}")