执行

import pynput

命令，我得到了：

marc@boop:~$ python3
Python 3.7.5rc1 (default,Oct  8 2019,16:47:45) 
[GCC 9.2.1 20191008] on linux
Type "help","copyright","credits" or "license" for more information.
>>> import pynput
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_xorg.py",line 85,in _from_symbol
File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_base.py",line 131,in from_vk
File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_base.py",line     62,in __init__
ValueError: {'is_media': True}

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "<stdin>",line 1,in <module>
  File "<frozen importlib._bootstrap>",line 983,in _find_and_load
  File "<frozen importlib._bootstrap>",line 967,in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>",line 668,in _load_unlocked
  File "<frozen importlib._bootstrap>",line 638,in _load_backward_compatible
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/__init__.py",line 40,in _load_backward_compatible
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/__init__.py",line 49,in _load_backward_compatible
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_xorg.py",line 105,in <module>
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_xorg.py",line 156,in Key
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_xorg.py",line 102,in _from_media
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_xorg.py",line 90,in _from_symbol
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_base.py",in from_vk
  File "/usr/local/lib/python3.7/dist-packages/pynput-1.5.0-py3.7.egg/pynput/keyboard/_base.py",line 62,in __init__
ValueError: {'is_media': True}
>>> 

我尝试通过pip以及从github repo安装pynput。

我在Ubuntu 19.10中使用python版本3.7。

如果我可以提供任何其他信息，请询问。  谢谢！