Bug#489979: python-tz: upgrade fails due to egg-info conflict

[Aaron M. Ucko]

Package: python-tz
Version: 2008b-3
Severity: grave
Justification: renders package unusable (uninstallable)

Preparing to replace python-tz 2008b-3 (using .../python-tz_2008c-1_all.deb) ...
Traceback (most recent call last):
  File "/usr/bin/pycentral", line 1891, in <module>
    main()
  File "/usr/bin/pycentral", line 1885, in main
    rv = action.run(global_options)
  File "/usr/bin/pycentral", line 1349, in run
    pkg.prepare(used_runtimes, old_used_runtimes, old_pkg)
  File "/usr/bin/pycentral", line 998, in prepare
    os.makedirs(d2)
  File "/usr/lib/python2.5/os.py", line 171, in makedirs
    mkdir(name, mode)
OSError: [Errno 17] File exists: '/usr/lib/python2.4/site-packages/pytz-2008a.egg-info'

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.25.9 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages python-tz depends on:
ii  python                        2.5.2-1    An interactive high-level object-o
ii  python-central                0.6.8      register and build utility for Pyt
ii  tzdata                        2008c-1    time zone and daylight-saving time

python-tz recommends no packages.

-- no debconf information