Update app.py

app.py

@@ -1,5 +1,5 @@
-import streamlit as st 
-from functions_preprocess import LinguisticPreprocessor
+import streamlit as st
+from functions_preprocess import LinguisticPreprocessor, download_if_non_existent
 import pickle
 import nltk
 nltk.download('stopwords')
@@ -8,7 +8,6 @@ download_if_non_existent('taggers/averaged_perceptron_tagger', 'averaged_percept
 download_if_non_existent('corpora/wordnet', 'wordnet')
 
 
-
 #################################################################### Streamlit interface
 st.title("Movie Reviews: An NLP Sentiment analysis")