Update app.py

change to ver1

app.py

@@ -6,28 +6,27 @@ import pathlib
 from tempfile import NamedTemporaryFile
 
 from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline
-from langchain_community.llms.huggingface_pipeline import HuggingFacePipeline
-from langchain_community.llms import LlamaCpp
+from langchain.llms import HuggingFacePipeline
+from langchain.llms import LlamaCpp
 from langchain import PromptTemplate, LLMChain
 from langchain.callbacks.manager import CallbackManager
 from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
-from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.chains import RetrievalQA
-from langchain_community.vectorstores import FAISS
+from langchain.vectorstores import FAISS
 from PyPDF2 import PdfReader
 import os
 import time
 from langchain.chains.question_answering import load_qa_chain
 from langchain.chains.conversational_retrieval.prompts import CONDENSE_QUESTION_PROMPT
 
-from langchain_community.document_loaders import TextLoader
-from langchain_community.document_loaders import PyPDFLoader
-# from langchain.document_loaders import PyPDFLoader
-# from langchain.document_loaders import Docx2txtLoader
-# from langchain.document_loaders.image import UnstructuredImageLoader
-# from langchain.document_loaders import UnstructuredHTMLLoader
-# from langchain.document_loaders import UnstructuredPowerPointLoader
-# from langchain.document_loaders import TextLoader
+from langchain.document_loaders import TextLoader
+from langchain.document_loaders import PyPDFLoader
+from langchain.document_loaders import Docx2txtLoader
+from langchain.document_loaders.image import UnstructuredImageLoader
+from langchain.document_loaders import UnstructuredHTMLLoader
+from langchain.document_loaders import UnstructuredPowerPointLoader
+from langchain.document_loaders import TextLoader
 from langchain.memory import ConversationBufferWindowMemory
 
 from langchain.memory import ConversationBufferMemory
@@ -168,7 +167,7 @@ def split_docs(documents,chunk_size=1000):
 
 @st.cache_resource
 def load_llama2_llamaCpp():
-    core_model_name = "phi-2.Q4_K_M.gguf"
+    core_model_name = "llama-2-7b-chat.Q4_0.gguf"
     #n_gpu_layers = 32
     n_batch = 512
     callback_manager = CallbackManager([StreamingStdOutCallbackHandler()])