Cannot install on debian

[PrzemekSkw]

Traceback (most recent call last): File "/usr/local/bin/pip3", line 5, in <module> from pip._internal.cli.main import main File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/cli/main.py", line 9, in <module> from pip._internal.cli.autocompletion import autocomplete File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/cli/autocompletion.py", line 10, in <module> from pip._internal.cli.main_parser import create_main_parser File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/cli/main_parser.py", line 8, in <module> from pip._internal.cli import cmdoptions File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/cli/cmdoptions.py", line 23, in <module> from pip._internal.cli.parser import ConfigOptionParser File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/cli/parser.py", line 12, in <module> from pip._internal.configuration import Configuration, ConfigurationError File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/configuration.py", line 26, in <module> from pip._internal.utils.logging import getLogger File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/utils/logging.py", line 27, in <module> from pip._internal.utils.misc import ensure_dir File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/utils/misc.py", line 39, in <module> from pip._internal.locations import get_major_minor_version File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/locations/__init__.py", line 14, in <module> from . import _distutils, _sysconfig File "/home/dietpi/.local/lib/python3.9/site-packages/pip/_internal/locations/_distutils.py", line 9, in <module> from distutils.cmd import Command as DistutilsCommand ModuleNotFoundError: No module named 'distutils.cmd'
Regards