old_contents: from ceph_deploy.util.wrappers import check_call
  from ceph_deploy.util.context import remote
  
  
  def install(distro, logger, version_kind, version):
      release = distro.release
      machine = distro.sudo_conn.modules.platform.machine()
  
      if version_kind in ['stable', 'testing']:
          key = 'release'
      else:
          key = 'autobuild'
  
      check_call(
          distro.sudo_conn,
          logger,
          ['su -c \'rpm --import "https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/{key}.asc"\''.format(key=key),],
          shell=True)
  
      if version_kind == 'stable':
          url = 'http://ceph.com/rpm-{version}/el6/'.format(
              version=version,
              )
      elif version_kind == 'testing':
          url = 'http://ceph.com/rpm-testing/'
      elif version_kind == 'dev':
          url = 'http://gitbuilder.ceph.com/ceph-rpm-centos{release}-{machine}-basic/ref/{version}/'.format(
              release=release.split(".",1)[0],
              machine=machine,
              version=version,
              )
  
      check_call(
          distro.sudo_conn,
          logger,
          [
              'rpm',
              '-Uvh',
              '--replacepkgs',
              '--force',
              '--quiet',
              '{url}noarch/ceph-release-1-0.el6.noarch.rpm'.format(url=url),
          ],
      )
  
      check_call(
          distro.sudo_conn,
          logger,
          [
              'yum',
              '-y',
              '-q',
              'install',
              'ceph',
          ],
      )
  
new_contents: from ceph_deploy.util.wrappers import check_call
  
  
  def install(distro, logger, version_kind, version):
      release = distro.release
      machine = distro.sudo_conn.modules.platform.machine()
  
      if version_kind in ['stable', 'testing']:
          key = 'release'
      else:
          key = 'autobuild'
  
      check_call(
          distro.sudo_conn,
          logger,
          ['su -c \'rpm --import "https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/{key}.asc"\''.format(key=key),],
          shell=True)
  
      if version_kind == 'stable':
          url = 'http://ceph.com/rpm-{version}/el6/'.format(
              version=version,
              )
      elif version_kind == 'testing':
          url = 'http://ceph.com/rpm-testing/'
      elif version_kind == 'dev':
          url = 'http://gitbuilder.ceph.com/ceph-rpm-centos{release}-{machine}-basic/ref/{version}/'.format(
              release=release.split(".",1)[0],
              machine=machine,
              version=version,
              )
  
      check_call(
          distro.sudo_conn,
          logger,
          [
              'rpm',
              '-Uvh',
              '--replacepkgs',
              '--force',
              '--quiet',
              '{url}noarch/ceph-release-1-0.el6.noarch.rpm'.format(url=url),
          ],
      )
  
      check_call(
          distro.sudo_conn,
          logger,
          [
              'yum',
              '-y',
              '-q',
              'install',
              'ceph',
          ],
      )
  
subject: remove unused import