[Bug 1075738] Re: "Software Sources" crash

[Istvan Kispal]

After some debugging:
The problem is most probably caused by an invalid uft-8 character in the 'davmail' package maintaner's name, so it affects only people who installed the davmail package.

It is quite annoying, please fix.
Thanks

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https://bugs.launchpad.net/bugs/1075738

Title:
  "Software Sources" crash

Status in The apt sources.list editor used in Ubuntu (and Kubuntu):
  New
Status in “software-properties” package in Ubuntu:
  New

Bug description:
  software-properties-gtk doesn't start. When I start it manually from a
  terminal (with sudo) it gives me this:

  $sudo software-properties-gtk
  gpg: /tmp/tmpikq74o/trustdb.gpg: trustdb created
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 162, in packages_for_modalias
      cache_map = packages_for_modalias.cache_maps[apt_cache_hash]
  KeyError: -1063478128

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/bin/software-properties-gtk", line 103, in <module>
      app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
    File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 178, in __init__
      self.init_drivers()
    File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 1097, in init_drivers
      self.devices = detect.system_device_drivers()
    File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 415, in system_device_drivers
      for pkg, pkginfo in system_driver_packages(apt_cache).items():
    File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 319, in system_driver_packages
      for p in packages_for_modalias(apt_cache, alias):
    File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 164, in packages_for_modalias
      cache_map = _apt_cache_modalias_map(apt_cache)
    File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 129, in _apt_cache_modalias_map
      m = package.candidate.record['Modaliases']
    File "/usr/lib/python3/dist-packages/apt/package.py", line 429, in record
      return Record(self._records.record)
  UnicodeDecodeError: 'utf-8' codec can't decode byte 0xeb in position 114: invalid continuation byte

  
  ---------------------------------------------
  Description:	Ubuntu 12.10
  Release:	12.10

  software-properties-gtk:
    Installed: 0.92.9
    Candidate: 0.92.9
    Version table:
   *** 0.92.9 0
          500 http://hu.archive.ubuntu.com/ubuntu/ quantal/main i386 Packages
          100 /var/lib/dpkg/status

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