Update app.py

app.py

@@ -11,6 +11,7 @@ from langchain.memory import ConversationBufferMemory
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.runnables import RunnablePassthrough, RunnableLambda
 import spacy
+import subprocess
 
 # Function to check and download spaCy model
 def ensure_spacy_model(model_name="en_core_web_sm"):