无法运行pip3-ModuleNotFoundError

Question

我正在使用Ubuntu 18.04和Python3.7.1。我正在尝试运行pip3，但是在lsb_release程序中出现错误：

$ pip3 -V

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 33, in vendored
    __import__(vendored_name, globals(), locals(), level=0)
ModuleNotFoundError: No module named 'pip._vendor.distro'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/pip3", line 9, in <module>
    from pip import main
  File "/usr/lib/python3/dist-packages/pip/__init__.py", line 22, in <module>
    from pip._vendor.requests.packages.urllib3.exceptions import DependencyWarning
  ...
  File "/usr/share/python-wheels/distro-1.0.1-py2.py3-none-any.whl/distro.py", line 932, in _get_lsb_release_info
subprocess.CalledProcessError: Command 'lsb_release -a' returned non-zero exit status 1.

我看不到有什么问题，文件以正确的标题开头：

#!/usr/bin/python3 -Es

我可以看到pip3确实存在：

$ whereis pip3
pip3: /usr/bin/pip3 /usr/share/man/man1/pip3.1.gz

我尝试卸载并重新安装pip3，但没有任何改变。

编辑：

这解决了我的问题： https://askubuntu.com/a/1003535/619372