提取后将ISO文件复制到新目录中

Question

我正在使用shutil和ISO9660并尝试将提取的ISO文件复制到新目录中。但是，当我尝试复制信息时，我收到错误告诉我：

Traceback (most recent call last):
  File "uboot.py", line 7, in <module>
    unzip_iso("dsl-4.11.rc1.iso")
  File "/home/baal/bin/python/uboot/lib/settings.py", line 138, in unzip_iso
    shutil.copyfile(iso_item, create_filename(filepath))
  File "/usr/lib/python2.7/shutil.py", line 82, in copyfile
    with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory: '/BOOT'

我使用的代码：

def unzip_iso(filepath, verbose=False):
    iso_file = ISO9660(filepath)

    def create_dirname(path):
        data = path.split("/")[-1]
        items = data.split(".")
        return items[0]

    for iso_item in iso_file.tree():
        if iso_item == "/":
            pass
        else:
            shutil.copyfile(iso_item, create_dirname(filepath))

如何将ISO文件成功复制到新目录？