@translate_s3_error
  def copyfile(self, src, dst, *args, **kwargs):
    if self.isdir(dst):
      raise IOError(errno.EINVAL, dst % "Copy dst '%s' is a directory")
    self._copy(src, dst, recursive=False, use_src_basename=False)
dataset/ETHPy150Open cloudera/hue/desktop/libs/aws/src/aws/s3/s3fs.py/S3FileSystem.copyfile/swapped operands of `%`