Update app.py

app.py

@@ -3,9 +3,9 @@ from langchain.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import FAISS
-from langchain import HuggingFaceHub
+from langchain.llms import HuggingFaceHub
 from langchain.chains import RetrievalQA
-from langchain import HuggingFaceHub
+
 
 import sentence_transformers
 import faiss
@@ -13,7 +13,7 @@ import faiss
 def loading_pdf():
     return "Loading..."
 
-def pdf_changes(pdf_doc, repo_id):
+def pdf_changes(pdf_doc):
     
     loader = PyPDFLoader(pdf_doc.name)
     pages = loader.load_and_split()
@@ -75,7 +75,7 @@ with gr.Blocks(css=css) as demo:
         question = gr.Textbox(label="Question", placeholder="Type your question and hit Enter ")
         submit_btn = gr.Button("Send message")
     #load_pdf.click(loading_pdf, None, langchain_status, queue=False)    
-    load_pdf.click(pdf_changes, inputs=[pdf_doc, repo_id], outputs=[langchain_status], queue=False)
+    load_pdf.click(pdf_changes, inputs=[pdf_doc], outputs=[langchain_status], queue=False)
     question.submit(add_text, [chatbot, question], [chatbot, question]).then(
         bot, chatbot, chatbot
     )