Update app.py

app.py

@@ -5,7 +5,7 @@ import streamlit as st
 
 vectorizer = TfidfVectorizer(use_idf=True, lowercase=True, strip_accents='ascii', stop_words='english')
 user_input = st.text_input("Enter some text:", "Default Text")
-if user_vector is not None:
+if user_input is not None:
     x = vectorizer.fit_transform(np.array(user_input))
     model = load('Naive_Bayes_Spam_Detection.joblib')
     pred = model.predict(x)