# Check if the exception is not a network related one
ydl.download([test_case['url']])
except (DownloadError, ExtractorError) as err:
# Check if the exception is not a network related one
- if not err.exc_info[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError):
+ if not err.exc_info[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError) or (err.exc_info[0] == compat_HTTPError and err.exc_info[1].code == 503):