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Delete app.py

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  1. app.py +0 -126
app.py DELETED
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- import streamlit as st
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- from llama_index.core import StorageContext, load_index_from_storage, VectorStoreIndex, SimpleDirectoryReader, ChatPromptTemplate
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- from llama_index.llms.huggingface import HuggingFaceInferenceAPI
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- from dotenv import load_dotenv
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- from llama_index.embeddings.huggingface import HuggingFaceEmbedding
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- from llama_index.core import Settings
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- import os
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- import base64
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- import docx2txt
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-
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- # Load environment variables
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- load_dotenv()
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-
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- icons = {"assistant": "robot.png", "user": "man-kddi.png"}
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-
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- # Configure the Llama index settings
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- Settings.llm = HuggingFaceInferenceAPI(
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- model_name="meta-llama/Meta-Llama-3-8B-Instruct",
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- tokenizer_name="meta-llama/Meta-Llama-3-8B-Instruct",
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- context_window=3900,
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- token=os.getenv("HF_TOKEN"),
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- max_new_tokens=1000,
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- generate_kwargs={"temperature": 0.5},
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- )
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- Settings.embed_model = HuggingFaceEmbedding(
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- model_name="BAAI/bge-small-en-v1.5"
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- )
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-
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- # Define the directory for persistent storage and data
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- PERSIST_DIR = "./db"
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- DATA_DIR = "data"
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-
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- # Ensure data directory exists
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- os.makedirs(DATA_DIR, exist_ok=True)
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- os.makedirs(PERSIST_DIR, exist_ok=True)
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-
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- def displayPDF(file):
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- with open(file, "rb") as f:
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- base64_pdf = base64.b64encode(f.read()).decode('utf-8')
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- pdf_display = f'<iframe src="data:application/pdf;base64,{base64_pdf}" width="100%" height="600" type="application/pdf"></iframe>'
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- st.markdown(pdf_display, unsafe_allow_html=True)
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-
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- def displayDOCX(file):
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- text = docx2txt.process(file)
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- st.text_area("Document Content", text, height=400)
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-
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- def displayTXT(file):
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- with open(file, "r") as f:
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- text = f.read()
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- st.text_area("Document Content", text, height=400)
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-
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- def data_ingestion():
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- documents = SimpleDirectoryReader(DATA_DIR).load_data()
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- storage_context = StorageContext.from_defaults()
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- index = VectorStoreIndex.from_documents(documents)
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- index.storage_context.persist(persist_dir=PERSIST_DIR)
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-
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- def handle_query(query):
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- storage_context = StorageContext.from_defaults(persist_dir=PERSIST_DIR)
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- index = load_index_from_storage(storage_context)
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- chat_text_qa_msgs = [
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- (
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- "user",
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- """You are Q&A assistant named CHAT-DOC. Your main goal is to provide answers as accurately as possible, based on the instructions and context you have been given. If a question does not match the provided context or is outside the scope of the document, kindly advise the user to ask questions within the context of the document.
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- Context:
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- {context_str}
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- Question:
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- {query_str}
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- """
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- )
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- ]
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- text_qa_template = ChatPromptTemplate.from_messages(chat_text_qa_msgs)
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- query_engine = index.as_query_engine(text_qa_template=text_qa_template)
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- answer = query_engine.query(query)
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-
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- if hasattr(answer, 'response'):
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- return answer.response
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- elif isinstance(answer, dict) and 'response' in answer:
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- return answer['response']
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- else:
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- return "Sorry, I couldn't find an answer."
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-
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- # Streamlit app initialization
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- st.title("Chat with your Document 📄")
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- st.markdown("Chat here👇")
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-
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- if 'messages' not in st.session_state:
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- st.session_state.messages = [{'role': 'assistant', "content": 'Hello! Upload a PDF, DOCX, or TXT file and ask me anything about its content.'}]
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-
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- for message in st.session_state.messages:
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- with st.chat_message(message['role'], avatar=icons[message['role']]):
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- st.write(message['content'])
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-
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- with st.sidebar:
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- st.title("Menu:")
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- uploaded_file = st.file_uploader("Upload your document (PDF, DOCX, TXT)", type=["pdf", "docx", "txt"])
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- if st.button("Submit & Process") and uploaded_file:
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- with st.spinner("Processing..."):
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- file_extension = os.path.splitext(uploaded_file.name)[1].lower()
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- filepath = os.path.join(DATA_DIR, "uploaded_file" + file_extension)
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- with open(filepath, "wb") as f:
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- f.write(uploaded_file.getbuffer())
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-
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- if file_extension == ".pdf":
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- displayPDF(filepath)
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- elif file_extension == ".docx":
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- displayDOCX(filepath)
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- elif file_extension == ".txt":
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- displayTXT(filepath)
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-
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- data_ingestion() # Process file every time a new file is uploaded
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- st.success("Done")
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-
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- user_prompt = st.chat_input("Ask me anything about the content of the document:")
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-
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- if user_prompt and uploaded_file:
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- st.session_state.messages.append({'role': 'user', "content": user_prompt})
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- with st.chat_message("user", avatar=icons["user"]):
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- st.write(user_prompt)
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-
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- # Trigger assistant's response retrieval and update UI
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- with st.spinner("Thinking..."):
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- response = handle_query(user_prompt)
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- with st.chat_message("assistant", avatar=icons["assistant"]):
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- st.write(response)
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- st.session_state.messages.append({'role': 'assistant', "content": response})