Description of problem:

I issued the command "dnf config-manager" and got the response:

# dnf config-manager
Traceback (most recent call last):
  File "/bin/dnf", line 35, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python3.4/site-packages/dnf/cli/main.py", line 185, in user_main
    errcode = main(args)
  File "/usr/lib/python3.4/site-packages/dnf/cli/main.py", line 84, in main
    return _main(base, args)
  File "/usr/lib/python3.4/site-packages/dnf/cli/main.py", line 134, in _main
    cli.run()
  File "/usr/lib/python3.4/site-packages/dnf/cli/cli.py", line 1071, in run
    return self.command.run(self.base.extcmds)
  File "/usr/lib/python3.4/site-packages/dnf-plugins/config_manager.py", line 108, in run
    self.modify_repo()
  File "/usr/lib/python3.4/site-packages/dnf-plugins/config_manager.py", line 144, in modify_repo
    for repo in sorted(matched):
TypeError: unorderable types: Repo() < Repo()

which really isn't the sort of thing that a user should be getting.

Version-Release number of selected component (if applicable):

# dnf --version
0.6.5
  Installed: dnf-0:0.6.5-1.fc23.noarch at 2015-04-01 19:34
  Built    : Fedora Project at 2015-03-31 17:34

  Installed: rpm-0:4.12.0.1-13.fc23.x86_64 at 2015-04-01 19:34
  Built    : Fedora Project at 2015-03-31 10:14

How reproducible:

Completely as at 2015-04-03.