Update app.py

app.py

@@ -21,11 +21,13 @@ def download_html_and_files(url):
     for link in soup.find_all('a'):
         file_url = urllib.parse.urljoin(base_url, link.get('href'))
         local_filename = urllib.parse.urlparse(file_url).path.split('/')[-1]
-        link['href'] = local_filename
-        download_file(file_url, local_filename)
+        if local_filename:  # add this line
+            link['href'] = local_filename
+            download_file(file_url, local_filename)
     
     with open("index.html", "w") as file:
         file.write(str(soup))
+
         
 def list_files(directory_path='.'):
     return [f for f in os.listdir(directory_path) if os.path.isfile(os.path.join(directory_path, f))]