Update app.py

app.py

@@ -3,6 +3,7 @@ from bs4 import BeautifulSoup
 from nltk.tokenize import word_tokenize
 from nltk.corpus import wordnet
 import random
+import nltk
 nltk.download('punkt')
 def paraphrase_text(text, synonyms_num=5, random_synonym=True):
     # Tokenize the text