Does not affect normal use, it is not very beautiful

 

Solution:

Create a configuration file for pip.conf to remove the warning.

Cd ~ jump to the root directory

Mkdir .pip creates a .pip file (.pip hidden file)

Cd .pip enters .pip

Vi pip.conf create pip, conf file and enter vi edit mode

Enter the following in vi:

i Enter insert mode Enter input Enter Esc to enter command mode

Enter Shift +: Enter x Save Exit

 

Go back to the root directory cd ~

Enter pip.list again. Warning is gone. Looks more comfortable (for friends with obsessive-compulsive disorder)