code: def get(self, path, local_path):
          
          normpath = os.path.normpath(local_path)
          folder = os.path.dirname(normpath)
          if folder and not os.path.exists(folder):
              os.makedirs(folder)
  
          tmp_local_path = local_path + '-luigi-tmp-%09d' % random.randrange(0, 1e10)
  
          # download file
          self._connect()
  
          if self.sftp:
              self._sftp_get(path, tmp_local_path)
          else:
              self._ftp_get(path, tmp_local_path)
  
          self._close()
  
          os.rename(tmp_local_path, local_path)
docs: Download file from (s)FTP to local filesystem.