root@saiya-jin:/etc# which python
/usr/bin/python
root@saiya-jin:/etc# apt-cache policy software-center
software-center:
  Installed: 5.2.5
  Candidate: 5.2.6
  Version table:
     5.2.6 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise-proposed/main amd64 Packages
 *** 5.2.5 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     5.2 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
root@saiya-jin:/etc#