Update app.py

try to file name propre

app.py

@@ -7,8 +7,7 @@ import PyPDF2
 import numpy as np
 from transformers import pipeline, AutoTokenizer, AutoModelForSeq2SeqLM
 from sklearn.metrics.pairwise import cosine_similarity
-
-# Local imports
+import os
 from database1 import create_db
 from first1 import pdf_query
 
@@ -30,7 +29,7 @@ def upload_pdf(files):
         messages = []
 
         for file in files:
-            filename = file.name
+            filename = os.path.basename(file.name)  # <-- FIXED HERE
             token = str(uuid.uuid4())
 
             pdf_reader = PyPDF2.PdfReader(file)