.

app.py

@@ -39,6 +39,7 @@ def select_video_format(url, format_note='480p', ext='mp4'):
 def download_video(url,format_id, n_keep=10):
     ydl_opts = {
       'format':format_id,
+      'cachedir': False,
       'external_downloader' : 'aria2c',
       'external_downloader_args' :['--max-connection-per-server=16','--dir=videos'],
       'outtmpl': "videos/%(id)s.%(ext)s"}