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Delete app.py
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app.py
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import streamlit as st
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import os
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from langchain.document_loaders.csv_loader import CSVLoader
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from langchain.text_splitter import RecursiveCharacterTextSplitter
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from langchain.embeddings import HuggingFaceEmbeddings
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from langchain.vectorstores import FAISS
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from langchain.llms import CTransformers
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from langchain.chains import ConversationalRetrievalChain
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def add_vertical_space(spaces=1):
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for _ in range(spaces):
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st.sidebar.markdown("---")
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def main():
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st.set_page_config(page_title="Llama-2-GGML CSV Chatbot", layout="wide")
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st.title("Llama-2-GGML CSV Chatbot")
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st.sidebar.title("About")
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st.sidebar.markdown('''
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The Llama-2-GGML CSV Chatbot uses the **Llama-2-7B-Chat-GGML** model.
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### πBot evolving, stay tuned!
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## Useful Links π
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- **Model:** [Llama-2-7B-Chat-GGML](https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGML/tree/main) π
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- **GitHub:** [ThisIs-Developer/Llama-2-GGML-CSV-Chatbot](https://github.com/ThisIs-Developer/Llama-2-GGML-CSV-Chatbot) π¬
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''')
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DB_FAISS_PATH = "vectorstore/db_faiss"
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TEMP_DIR = "temp"
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if not os.path.exists(TEMP_DIR):
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os.makedirs(TEMP_DIR)
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uploaded_file = st.sidebar.file_uploader("Upload CSV file", type=['csv'], help="Upload a CSV file")
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add_vertical_space(1)
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st.sidebar.markdown('Made by [@ThisIs-Developer](https://huggingface.co/ThisIs-Developer)')
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if uploaded_file is not None:
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file_path = os.path.join(TEMP_DIR, uploaded_file.name)
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with open(file_path, "wb") as f:
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f.write(uploaded_file.getvalue())
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st.write(f"Uploaded file: {uploaded_file.name}")
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st.write("Processing CSV file...")
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loader = CSVLoader(file_path=file_path, encoding="utf-8", csv_args={'delimiter': ','})
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data = loader.load()
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text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=20)
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text_chunks = text_splitter.split_documents(data)
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st.write(f"Total text chunks: {len(text_chunks)}")
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embeddings = HuggingFaceEmbeddings(model_name='sentence-transformers/all-MiniLM-L6-v2')
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docsearch = FAISS.from_documents(text_chunks, embeddings)
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docsearch.save_local(DB_FAISS_PATH)
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llm = CTransformers(model="models/llama-2-7b-chat.ggmlv3.q4_0.bin",
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model_type="llama",
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max_new_tokens=512,
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temperature=0.1)
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qa = ConversationalRetrievalChain.from_llm(llm, retriever=docsearch.as_retriever())
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st.write("### Enter your query:")
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query = st.text_input("Input Prompt:")
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if query:
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with st.spinner("Processing your question..."):
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chat_history = []
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result = qa({"question": query, "chat_history": chat_history})
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st.write("---")
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st.write("### Response:")
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st.write(f"> {result['answer']}")
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os.remove(file_path)
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if __name__ == "__main__":
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main()
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