software-properties-gtk (TypeError) detect_drivers → system_device_drivers → system_driver_packages → packages_for_modalias

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding software-properties. This problem was most recently seen with package version 0.96.24.24, the problem page at https://errors.ubuntu.com/problem/a98c6a0ffa437bac3d8c239431e0eedecffdbdfe contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 1205, in detect_drivers
    self.devices = detect.system_device_drivers(self.apt_cache)
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 390, in system_device_drivers
    for pkg, pkginfo in system_driver_packages(apt_cache).items():
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 294, in system_driver_packages
    for p in packages_for_modalias(apt_cache, alias):
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 145, in packages_for_modalias
    apt_cache_hash = hash(apt_cache)
TypeError: unhashable type: 'Cache'

[Andrea Azzarone (azzar1)]

This will be fixed once the version of python-apt in proposed gets in main.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

the fix is in https://launchpad.net/ubuntu/+source/python-apt/1.6.0~rc2ubuntu1