small setup.py file to reproduce this problem if people still had trouble reproducing (this works with the attached d002-distutils-type-checks-can-fail-issue-23102.patch)

```
#!/usr/bin/env python
''' Installation script that breaks '''

from distutils.command import install
from distutils.core import setup

class installer(install.install):
    def run(self):
        import setuptools
        install.install.run(self)


setup(name='test',
      cmdclass = dict(install=installer)
     )

```
run with: 
python setup.py install --user
result:
```
running install
running build
running install_egg_info
Traceback (most recent call last):
  File "mysetup.py", line 14, in <module>
    cmdclass = dict(install=installer)
  File "/usr/lib64/python2.7/distutils/core.py", line 151, in setup
    dist.run_commands()
  File "/usr/lib64/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/usr/lib64/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "mysetup.py", line 10, in run
    install.install.run(self)
  File "/usr/lib64/python2.7/distutils/command/install.py", line 575, in run
    self.run_command(cmd_name)
  File "/usr/lib64/python2.7/distutils/cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "/usr/lib64/python2.7/distutils/dist.py", line 970, in run_command
    cmd_obj = self.get_command_obj(command)
  File "/usr/lib64/python2.7/distutils/dist.py", line 846, in get_command_obj
    cmd_obj = self.command_obj[command] = klass(self)
  File "/usr/lib64/python2.7/distutils/cmd.py", line 59, in __init__
    raise TypeError, "dist must be a Distribution instance"
TypeError: dist must be a Distribution instance
```
expected result:
```
running install
running build
running install_egg_info
Writing /home/jens/.local/lib/python2.7/site-packages/test-0.0.0-py2.7.egg-info
```