[Bug 1460607] Re: Erasing usb stick failed: AttributeError: 'NoneType' object has no attribute 'get_block'

[Laurent Bonnaud]

*** This bug is a duplicate of bug 1449019 ***
    https://bugs.launchpad.net/bugs/1449019

** This bug has been marked a duplicate of bug 1449019
   usb-creator-gtk does not create startup disk because of python error in Vivid

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https://bugs.launchpad.net/bugs/1460607

Title:
  Erasing usb stick failed: AttributeError: 'NoneType' object has no
  attribute 'get_block'

Status in usb-creator package in Ubuntu:
  Confirmed

Bug description:
  I tried erasing a standard USB stick on up to date Ubuntu 15.04. This caused
  another new error message:

  org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/dbus/service.py", line 707, in _message_cb
      retval = candidate_method(self, *args, **keywords)
    File "/usr/share/usb-creator/usb-creator-helper", line 292, in Format
      block = obj.get_block()
  AttributeError: 'NoneType' object has no attribute 'get_block'

  
  Looks like obj can be None in some situation and this is not handled properly.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: usb-creator-gtk 0.2.67ubuntu0.1
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: X-Cinnamon
  Date: Mon Jun  1 13:42:46 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-02-12 (108 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: usb-creator
  UDisksDump: Error: [Errno 2] No such file or directory: 'udisks'
  UpgradeStatus: Upgraded to vivid on 2015-05-12 (19 days ago)

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