langChain and OpenAI

langChain and OpenAI

Postby Antonio Linares » Fri Apr 07, 2023 7:14 am

Reading text files and making questions to them:

Remove [:1000] to read the entire files contents, use it in case OpenAI complains about the amount of used tokens, or increase such value.

docs.py
Code: Select all  Expand view
from langchain.embeddings.openai import OpenAIEmbeddings
from langchain.text_splitter import CharacterTextSplitter
from langchain.vectorstores import ElasticVectorSearch, Pinecone, Weaviate, FAISS
import glob
import os

os.environ["OPENAI_API_KEY"] = "sk-...yours"

folder_path = "c:/harbour/src/vm"  
file_extension = "*.c"  

file_contents = []  

for file_path in glob.glob(os.path.join(folder_path, file_extension)):
    with open(file_path, "r") as f:
        contents = f.read()
        file_contents.append(contents[:1000])  

embeddings = OpenAIEmbeddings()
docsearch = FAISS.from_texts( file_contents, embeddings )

from langchain.chains.question_answering import load_qa_chain
from langchain.llms import OpenAI

chain = load_qa_chain(OpenAI(), chain_type="stuff")

query = "what about is this text ?"
docs = docsearch.similarity_search(query)
print( chain.run(input_documents=docs, question=query) )

To run it:
python docs.py
output:
This text describes the license and copyright information for several APIs, including the String API, the Virtual Memory API, the MT mode functions, and the Array API (Harbour level)
regards, saludos

Antonio Linares
www.fivetechsoft.com
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Antonio Linares
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