Update app.py

app.py

@@ -3,8 +3,10 @@
 # =========================
 from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.embeddings import HuggingFaceEmbeddings
-from langchain.vectorstores import Chroma
+
+
+from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_community.vectorstores import Chroma
 from groq import Groq
 from duckduckgo_search import DDGS
 import gradio as gr
@@ -120,9 +122,7 @@ def ask_rag(query):
 def chat(user_message, history):
 
     response = ask_rag(user_message)
-
-    history.append({"role": "user", "content": user_message})
-    history.append({"role": "assistant", "content": response})
+    history.append((user_message, response))
 
     return history, history
 
@@ -136,8 +136,7 @@ with gr.Blocks() as app:
 
     file = gr.File(label="Upload PDF")
     status = gr.Textbox(label="Status")
-
-    chatbot = gr.Chatbot(type="messages", allow_tags=False)
+    chatbot = gr.Chatbot()
     msg = gr.Textbox(placeholder="Ask your question...")
     state = gr.State([])