copr builds broken

The last successful copr build was 18.3+7.g802c1d51-1.el7
 18.3+9.g2e62cb8a-1.el7 is currently failing for
https://copr.fedorainfracloud.org/coprs/g/cloud-init/cloud-init-dev/build/775930/

epel-6-i386
epel-6-x86_64
fedora-rawhide-i386
fedora-rawhide-x86_64
fedora-rawhide-ppc64le

The rawhide errors look to all be a result of no 'python':
+ /usr/bin/python setup.py build
BUILDSTDERR: /var/tmp/rpm-tmp.OtzNu9: line 31: /usr/bin/python: No such file or directory

https://fedoraproject.org/wiki/Packaging:Python#Requires_and_BuildRequires_with_standardized_names
might be useful for figuring out how to do that the right way.

The epel issues seem to be related to get_linux_distro.
It fails with stack trace like (cleaned up the output):

| RuntimeError: Failed running ['/usr/bin/python', './tools/render-cloudcfg', 'systemd/cloud-init.service.tmpl', 'RENDERED_TEMPDan8FYU/cloud-init.service'] [rc=1] (, Traceback (most recent call last):
| File "./tools/render-cloudcfg", line 44, in <module>
| main()
| File "./tools/render-cloudcfg", line 19, in main
| platform = util.system_info()
| File "/builddir/build/BUILD/cloud-init-18.3-9-g2e62cb8a/cloudinit/util.py", line 627, in system_info
| 'dist': get_linux_distro()
| File "/builddir/build/BUILD/cloud-init-18.3-9-g2e62cb8a/cloudinit/util.py", line 597, in get_linux_distro
| os_release.get('VERSION'))
| File "/usr/lib/python2.6/re.py", line 137, in match
| return _compile(pattern, flags).match(string)
| TypeError: expected string or buffer
|