Update app.py

app.py

@@ -1,11 +1,11 @@
 import os, gradio
 from langchain.document_loaders import UnstructuredPDFLoader
 from langchain.indexes import VectorstoreIndexCreator
+import glob
 
 os.environ['OPENAI_API_KEY'] = os.getenv("OPENAI_API_KEY")
 
-text_folder = '.'
-loaders = [UnstructuredPDFLoader(os.path.join(text_folder, fn)) for fn in os.listdir(text_folder)]
+loaders = [UnstructuredPDFLoader(glob.glob("*.pdf"))]
 
 # Create the index, if it does not exist, and save it
 if not os.path.isfile('VectorStoreIndex/chroma-embeddings.parquet'):