ImportError: cannot import name 'main'

报错log

pip3 install numpy
Traceback (most recent call last):
  File "/usr/bin/pip3", line 9, in <module>
    from pip import main
ImportError: cannot import name 'main'

原因：pip3包损坏

解决方法：

sudo python3 -m pip uninstall pip && sudo apt install python3-pip --reinstall