Checking for a new Ubuntu release
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For upgrade information, please visit:
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Get:1 Upgrade tool signature [198 B]
Get:2 Upgrade tool [1,134 kB]
Fetched 1,134 kB in 0s (0 B/s)
authenticate 'saucy.tar.gz' against 'saucy.tar.gz.gpg'
extracting 'saucy.tar.gz'
Traceback (most recent call last):
  File "/tmp/ubuntu-release-upgrader-55dat2/saucy", line 6, in <module>
    from DistUpgrade.DistUpgradeMain import main
  File "/tmp/ubuntu-release-upgrader-55dat2/DistUpgrade/DistUpgradeMain.py", line 27, in <module>
    import apt
ImportError: No module named apt