Update app.py

app.py

@@ -10,6 +10,7 @@ import redis
 import uuid
 from datetime import datetime
 from functools import lru_cache
+import gc
 from word_cloud import get_frequent_words_html
 from config import NEWS_RETENTION_SECONDS, UK_EDITION_URL
 
@@ -244,6 +245,7 @@ def index():
 
     result_str += '</form></div>'
     logging.warning(f'[session_id: {session_id}] Successfully rendered template')
+    gc.collect()
     return render_template("index.html", body=result_str), status_code