In process of execution python3 setup.py install

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~/SCRepair$ python3 setup.py install
Traceback (most recent call last):
File "setup.py", line 5, in
setup(
File "/usr/lib/python3/dist-packages/setuptools/init.py", line 143, in setup
_install_setup_requires(attrs)
File "/usr/lib/python3/dist-packages/setuptools/init.py", line 131, in _install_setup_requires
dist = distutils.core.Distribution(dict(
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 447, in init
_Distribution.init(self, {
File "/usr/lib/python3.8/distutils/dist.py", line 292, in init
self.finalize_options()
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 740, in finalize_options
ep.load()(self)
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2444, in load
self.require(*args, **kwargs)
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2467, in require
items = working_set.resolve(reqs, env, installer, extras=self.extras)
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 787, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'packaging>=20.0' distribution was not found and is required by the application