ModuleNotFoundError: No module named 'distutils.util'

# python3 /root/get-pip.py 
Traceback (most recent call last):
  File "/root/get-pip.py", line 23687, in <module>
    main()
  File "/root/get-pip.py", line 198, in main
    bootstrap(tmpdir=tmpdir)
  File "/root/get-pip.py", line 82, in bootstrap
    from pip._internal.cli.main import main as pip_entry_point
  File "/tmp/tmpo94pbb_m/pip.zip/pip/_internal/cli/main.py", line 10, in <module>
  File "/tmp/tmpo94pbb_m/pip.zip/pip/_internal/cli/autocompletion.py", line 9, in <module>
  File "/tmp/tmpo94pbb_m/pip.zip/pip/_internal/cli/main_parser.py", line 7, in <module>
  File "/tmp/tmpo94pbb_m/pip.zip/pip/_internal/cli/cmdoptions.py", line 18, in <module>
ModuleNotFoundError: No module named 'distutils.util'