Description of problem:
$ koji download-build --arch noarch --arch x86_64 mutter-3.18.1-4.fc23
Traceback (most recent call last):
  File "/usr/bin/koji", line 56, in <module>
    import yum.comps
ImportError: No module named yum.comps


Koji is missing dependency on yum. Please add it, or use some other library (dnf et al.).


Version-Release number of selected component (if applicable):
koji-1.10.0-2.fc23.noarch