Cannot use setup.py develop on setuptools 59.6.0

[russkel]

I needed to fix a bug with bloom and tried to install this version with pip3 install -e .:

↳ pip3 install -e .
Defaulting to user installation because normal site-packages is not writeable
Obtaining file:///home/russ/work/bloom
  Preparing metadata (setup.py) ... done
Requirement already satisfied: PyYAML in /usr/lib/python3/dist-packages (from bloom==0.10.7) (5.4.1)
Requirement already satisfied: catkin_pkg>=0.4.3 in /usr/lib/python3/dist-packages (from bloom==0.10.7) (0.4.24)
Requirement already satisfied: empy in /usr/lib/python3/dist-packages (from bloom==0.10.7) (3.3.4)
Requirement already satisfied: python-dateutil in /usr/lib/python3/dist-packages (from bloom==0.10.7) (2.8.1)
Requirement already satisfied: rosdep>=0.15.0 in /usr/lib/python3/dist-packages (from bloom==0.10.7) (0.21.0)
Requirement already satisfied: rosdistro>=0.8.0 in /usr/lib/python3/dist-packages (from bloom==0.10.7) (0.8.3)
Requirement already satisfied: setuptools in /usr/lib/python3/dist-packages (from bloom==0.10.7) (59.6.0)
Requirement already satisfied: vcstools>=0.1.22 in /usr/lib/python3/dist-packages (from bloom==0.10.7) (0.1.42)
Installing collected packages: bloom
  Running setup.py develop for bloom
    error: subprocess-exited-with-error
    
    × python setup.py develop did not run successfully.
    │ exit code: 1
    ╰─> [29 lines of output]
        running develop
        /usr/lib/python3/dist-packages/setuptools/command/easy_install.py:158: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.
          warnings.warn(
        Traceback (most recent call last):
          File "<string>", line 2, in <module>
          File "<pip-setuptools-caller>", line 34, in <module>
          File "/home/russ/work/bloom/setup.py", line 23, in <module>
            setup(
          File "/usr/lib/python3/dist-packages/setuptools/__init__.py", line 153, in setup
            return distutils.core.setup(**attrs)
          File "/usr/lib/python3/dist-packages/setuptools/_distutils/core.py", line 148, in setup
            return run_commands(dist)
          File "/usr/lib/python3/dist-packages/setuptools/_distutils/core.py", line 163, in run_commands
            dist.run_commands()
          File "/usr/lib/python3/dist-packages/setuptools/_distutils/dist.py", line 967, in run_commands
            self.run_command(cmd)
          File "/usr/lib/python3/dist-packages/setuptools/_distutils/dist.py", line 985, in run_command
            cmd_obj.ensure_finalized()
          File "/usr/lib/python3/dist-packages/setuptools/_distutils/cmd.py", line 107, in ensure_finalized
            self.finalize_options()
          File "/usr/lib/python3/dist-packages/setuptools/command/develop.py", line 52, in finalize_options
            easy_install.finalize_options(self)
          File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 270, in finalize_options
            self._fix_install_dir_for_user_site()
          File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 400, in _fix_install_dir_for_user_site
            self.select_scheme(scheme_name)
          File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 741, in select_scheme
            scheme = INSTALL_SCHEMES[name]
        KeyError: 'unix_user'
        [end of output]
    
    note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

The solution was to install setuptools-61.2.0 which seemed to solve it, but this means it will be broken on Ubuntu jammy unless they up the setuptools version. I am not sure if there is a fix implementable here.