Update app.py

app.py

@@ -5,7 +5,11 @@ import streamlit as st
 def scrape_wikipedia(url):
     response = requests.get(url)
     soup = BeautifulSoup(response.content, 'html.parser')
-    articles_list = soup.find('div', {'class': 'div-col columns column-width'}).find_all('li')
+    div_element = soup.find('div', {'class': 'div-col columns column-width'})
+    if div_element is not None:
+        articles_list = div_element.find_all('li')
+    else:
+        articles_list = []
     return articles_list
 
 def main():