Update app.py

app.py

@@ -8,7 +8,7 @@ from langchain.document_loaders.csv_loader import CSVLoader
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import FAISS
 from langchain.llms import CTransformers
-from langchain.agents import create_pandas_dataframe_agent
+from langchain_experimental.agents import create_pandas_dataframe_agent
 from langchain.chains import LLMChain
 from langchain.prompts import PromptTemplate