Python isDirectoryError:[Errno 21]是一个目录：'/home/cali/Dropbox/&x27；

我有一个函数，试图将XML文档复制到我的Dropbox文件夹，但我得到：

/usr/bin/python3.5 /home/cali/PycharmProjects/Vocabulary/Vocabulary.py
Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python3.5/tkinter/__init__.py", line 1553, in __call__
    return self.func(*args)
  File "/home/cali/PycharmProjects/Vocabulary/Vocabulary.py", line 232, in add_item
    self.sync()
  File "/home/cali/PycharmProjects/Vocabulary/Vocabulary.py", line 287, in sync
    copyfile(vocabulary_path, destination_path)
  File "/usr/lib/python3.5/shutil.py", line 115, in copyfile
    with open(dst, 'wb') as fdst:
IsADirectoryError: [Errno 21] Is a directory: '/home/cali/Dropbox/'

Process finished with exit code 0

以下是函数：

def sync(self):

    path = os.path.expanduser('~/Desktop')
    vocabulary_path = os.path.join(path, 'Vocabulary', 'Words.xml')
    destination_path = os.path.expanduser('~/Dropbox/')

    copyfile(vocabulary_path, destination_path)

---

如何克服这个问题？

也许可以将文件复制到另一个文件，而不是目录

...
destination_path = os.path.expanduser('~/Dropbox/Words.xml')
...

---

您应该将文件路径设置为

目标路径

，而不仅仅是文件夹。因此，只需将其附加一个文件名即可。