Update app.py

app.py

@@ -89,7 +89,9 @@ class myClass:
             loaders = [PyPDFLoader(f) for f in self.dataset["filepath"]]
 
             self.index = VectorstoreIndexCreator(
-                vectorstore_cls=DocArrayInMemorySearch, embedding=self.embedding
+                vectorstore_cls=DocArrayInMemorySearch, 
+                embedding=self.embedding,
+                text_splitter=CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
             ).from_loaders(loaders=loaders)
 
             # del os.environ["OPENAI_API_KEY"]