code: def remote_file_exists(self, url):
          
          status = requests.head(url).status_code
  
          if status != 200:
              raise RemoteFileDoesntExist
docs: Checks whether the remote file exists.
  
          :param url:
              The url that has to be checked.
          :type url:
              String
  
          :returns:
              **True** if remote file exists and **False** if it doesn't exist.