added downloading nltk stop words

clean_text_model.py

@@ -3,10 +3,13 @@ import warnings
 from nltk.corpus import stopwords
 from nltk.stem import WordNetLemmatizer
 from bs4 import BeautifulSoup
+import nltk
+
 
 class TextCleaner:
     def __init__(self):
         warnings.filterwarnings("ignore")
+        nltk.download('stopwords')
         self.stop_words = set(stopwords.words('english'))
         self.lemmatizer = WordNetLemmatizer()