Update app.py

app.py

@@ -19,6 +19,14 @@ nltk.download('punkt')
 nltk.download('stopwords')
 nltk.download('wordnet')
 
+# Ensure NLTK data is downloaded at runtime
+nltk_data_path = "/home/user/nltk_data"
+if not os.path.exists(nltk_data_path):
+    os.makedirs(nltk_data_path)
+
+nltk.data.path.append(nltk_data_path)
+nltk.download('punkt', download_dir=nltk_data_path)
+
 # Initialize lemmatizer
 lemmatizer = WordNetLemmatizer()