Update app.py

app.py

@@ -1,4 +1,3 @@
-import os
 import re
 import PyPDF2
 from langchain_community.embeddings import OllamaEmbeddings
@@ -103,17 +102,13 @@ async def on_chat_start():
     while files is None:
         files = await cl.AskFileMessage(
             content="Please upload a pdf file to begin!",
+            # accept=["application/pdf"],
             accept=["application/pdf", "image/jpeg", "image/png", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"],
             max_size_mb=100,
             timeout=180, 
         ).send()
 
     file = files[0] # Get the first uploaded file
-
-    # Store file path in user session for later cleanup
-    uploaded_files = cl.user_session.get("uploaded_files", [])
-    uploaded_files.append(file.path)
-    cl.user_session.set("uploaded_files", uploaded_files)
     
     # Inform the user that processing has started
     msg = cl.Message(content=f"Processing `{file.name}`...")
@@ -184,17 +179,6 @@ async def on_chat_start():
     # Store the chain in user session
     cl.user_session.set("chain", chain)
 
-@cl.on_session_end
-async def on_session_end():
-    # Get the uploaded files from the user session
-    uploaded_files = cl.user_session.get("uploaded_files", [])
-    # Delete each file
-    for file_path in uploaded_files:
-        if os.path.exists(file_path):
-            os.remove(file_path)
-            logging.info(f"Deleted file: {file_path}")
-    # Clear the uploaded files list
-    cl.user_session.set("uploaded_files", [])
 
 @cl.on_message
 async def main(message: cl.Message):