Updated app.py

app.py

@@ -6,11 +6,11 @@ import gradio as gr
 
 # imports for langchain, plotly and Chroma
 
-from langchain.document_loaders import DirectoryLoader, TextLoader
+from langchain_community.document_loaders import DirectoryLoader, TextLoader
+from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain.text_splitter import CharacterTextSplitter
 from langchain.schema import Document
 from langchain_openai import OpenAIEmbeddings, ChatOpenAI
-from langchain.embeddings import HuggingFaceEmbeddings
 from langchain_chroma import Chroma
 from langchain.memory import ConversationBufferMemory
 from langchain.chains import ConversationalRetrievalChain
@@ -23,16 +23,8 @@ import matplotlib.pyplot as plt
 from random import randint
 import shutil
 
-MODEL = "gpt-4o-mini"
 db_name = "vector_db"
-
-# Load environment variables in a file called .env
-
-load_dotenv(override=True)
-os.environ['OPENAI_API_KEY'] = os.getenv('OPENAI_API_KEY')
-
 folder = "my-knowledge-base/"
-db_name = "vectorstore_db"
 MODEL = "llama3.2:latest"
 
 def process_files(files):