package python-apt 0.7.4ubuntu4 failed to install/upgrade: subprocess pre-installation script returned error exit status 1

Binary package hint: python-apt

Most probably it is a duplicate of bug 193003 but still putting it up.

The traceback on the console while doing sudo aptitude safe-upgrade

Preparing to replace python-apt 0.7.4ubuntu4 (using .../python-apt_0.7.4ubuntu5_i386.deb) ...
Traceback (most recent call last):
  File "/usr/bin/pycentral", line 1593, in <module>
    main()
  File "/usr/bin/pycentral", line 1587, in main
    rv = action.run(global_options)
  File "/usr/bin/pycentral", line 1075, in run
    requested = pyversions.requested_versions_for_runtime(version_field, version_only=True)
  File "/usr/share/pycentral-data/pyversions.py", line 172, in requested_versions_for_runtime
    vinfo = parse_versions(vstring)
  File "/usr/share/pycentral-data/pyversions.py", line 58, in parse_versions
    raise ValueError, 'error parsing Python-Version attribute'
ValueError: error parsing Python-Version attribute
dpkg: error processing /var/cache/apt/archives/python-apt_0.7.4ubuntu5_i386.deb (--unpack):
 subprocess pre-installation script returned error exit status 1

ProblemType: Package
Architecture: i386
Date: Tue Feb 19 09:47:33 2008
DistroRelease: Ubuntu 8.04
ErrorMessage: subprocess pre-installation script returned error exit status 1
Package: python-apt 0.7.4ubuntu4
PackageArchitecture: i386
SourcePackage: python-apt
Title: package python-apt 0.7.4ubuntu4 failed to install/upgrade: subprocess pre-installation script returned error exit status 1
Uname: Linux Mugglewille 2.6.24-8-generic #1 SMP Thu Feb 14 20:40:45 UTC 2008 i686 GNU/Linux