Update app.py

app.py

@@ -3,6 +3,7 @@ import streamlit as st
 from keybert import KeyBERT
 import yake
 from keyphrase_vectorizers import KeyphraseCountVectorizer
+from sklearn.feature_extraction.text import CountVectorizer
 st.title("Patent Text Extractor")
 placeholder = st.empty()
 text = placeholder.text_area("Paste or write text", height=300)