Update app.py

app.py

@@ -11,11 +11,12 @@ from langchain.prompts import PromptTemplate
 from langchain_community.document_loaders import PyPDFLoader
 from langchain_openai import ChatOpenAI
 from langchain.callbacks import get_openai_callback
+from io import BytesIO
 
 openai.api_key = os.getenv("OPENAI_API_KEY")
 
 def process_pdf(file):
-    loader = PyPDFLoader(file)
+    loader = PyPDFLoader(BytesIO(file.read()))
     documents = loader.load()
     text_splitter = RecursiveCharacterTextSplitter(chunk_size=1000, chunk_overlap=200)
     splits = text_splitter.split_documents(documents)