―――――――――――――――――――――― TestInstallation.test_installation ――――――――――――――――――――――

self = <test.test_installation.TestInstallation testMethod=test_installation>
rw_dir = '/tmp/test_installationo1a7a3rg'

    @with_rw_directory
    def test_installation(self, rw_dir):
        self.setUp_venv(rw_dir)
        result = subprocess.run(
            [self.pip, "install", "-r", "requirements.txt"],
            stdout=subprocess.PIPE,
            cwd=self.sources,
        )
        self.assertEqual(
            0,
            result.returncode,
            msg=result.stderr or result.stdout or "Can't install requirements",
        )
        result = subprocess.run(
            [self.python, "setup.py", "install"],
            stdout=subprocess.PIPE,
            cwd=self.sources,
        )
>       self.assertEqual(
            0,
            result.returncode,
            msg=result.stderr or result.stdout or "Can't build - setup.py failed",
        )
E       AssertionError: 0 != 1 : Can't build - setup.py failed

test/test_installation.py:39: AssertionError
----------------------------- Captured stderr call -----------------------------
Traceback (most recent call last):
  File "/home/runner/work/GitPython/GitPython/setup.py", line 2, in <module>
    from setuptools import setup, find_packages
ModuleNotFoundError: No module named 'setuptools'