Update app.py

app.py

@@ -5,10 +5,12 @@ import re
 import nltk
 from nltk.corpus import stopwords
 from nltk.stem import WordNetLemmatizer
+from nltk.tokenize import word_tokenize
 from transformers import pipeline, AutoTokenizer, AutoModelForSequenceClassification
 from wordcloud import WordCloud
 import matplotlib.pyplot as plt
 import io
+from collections import Counter
 
 # Download NLTK resources
 nltk.download('punkt')