[Bug 1101881] Re: software-properties-gtk crashed with TypeError in __new__(): object of type 'NoneType' has no len()

[Brian Murray]

** Description changed:

+ [ Impact ]
+ Users on architectures other than amd64 of i386 trying to use software-properties to choose a server from which to download software will receive a crash after closing the "Choose a Download Server" dialog.
+ 
+ [ Test Case ]
+ 1) Be on a not i386 or amd64 system (or be on amd64 and use a hack found in comment #11)
+ 2) Launch software-properties-gtk
+ 3) In the Download from: drop-down choose "Other..."
+ 4) Observe an empty list of download servers
+ 5) Click "Cancel"
+ 6) Observe a traceback in the terminal which you launched software-properties-gtk
+ 
+ Wit the version of software-properties-gtk from -proposed you will not
+ receive a crash.
+ 
+ -----------------------------------------------------------------------
+ 
  on nexus 7
  
- ProblemType: Crash
- DistroRelease: Ubuntu 13.04
+ ProblemType: CrashDistroRelease: Ubuntu 13.04
  Package: software-properties-gtk 0.92.13
  Uname: Linux 3.1.10-8-nexus7 armv7l
  ApportVersion: 2.8-0ubuntu2
  Architecture: armhf
  CrashCounter: 1
  Date: Sat Jan 19 14:44:31 2013
  ExecutablePath: /usr/bin/software-properties-gtk
  InstallationDate: Installed on 2013-01-16 (3 days ago)
  InstallationMedia: Ubuntu Raring Ringtail (development branch) - armhf (20130115-15:18)
  InterpreterPath: /usr/bin/python3.3
  MarkForUpload: True
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/bin/software-properties-gtk --open-tab 2
  ProcEnviron:
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
- PythonArgs: ['/usr/bin/software-properties-gtk', '--open-tab', '2']
- SourcePackage: software-properties
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
+ PythonArgs: ['/usr/bin/software-properties-gtk', '--open-tab', '2']SourcePackage: software-properties
  Title: software-properties-gtk crashed with TypeError in __new__(): object of type 'NoneType' has no len()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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https://bugs.launchpad.net/bugs/1101881

Title:
  software-properties-gtk crashed with TypeError in __new__(): object of
  type 'NoneType' has no len()

Status in software-properties package in Ubuntu:
  Fix Released
Status in software-properties source package in Wily:
  Triaged
Status in software-properties source package in Xenial:
  Triaged

Bug description:
  [ Impact ]
  Users on architectures other than amd64 of i386 trying to use software-properties to choose a server from which to download software will receive a crash after closing the "Choose a Download Server" dialog.

  [ Test Case ]
  1) Be on a not i386 or amd64 system (or be on amd64 and use a hack found in comment #11)
  2) Launch software-properties-gtk
  3) In the Download from: drop-down choose "Other..."
  4) Observe an empty list of download servers
  5) Click "Cancel"
  6) Observe a traceback in the terminal which you launched software-properties-gtk

  Wit the version of software-properties-gtk from -proposed you will not
  receive a crash.

  -----------------------------------------------------------------------

  on nexus 7

  ProblemType: CrashDistroRelease: Ubuntu 13.04
  Package: software-properties-gtk 0.92.13
  Uname: Linux 3.1.10-8-nexus7 armv7l
  ApportVersion: 2.8-0ubuntu2
  Architecture: armhf
  CrashCounter: 1
  Date: Sat Jan 19 14:44:31 2013
  ExecutablePath: /usr/bin/software-properties-gtk
  InstallationDate: Installed on 2013-01-16 (3 days ago)
  InstallationMedia: Ubuntu Raring Ringtail (development branch) - armhf (20130115-15:18)
  InterpreterPath: /usr/bin/python3.3
  MarkForUpload: True
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/bin/software-properties-gtk --open-tab 2
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  PythonArgs: ['/usr/bin/software-properties-gtk', '--open-tab', '2']SourcePackage: software-properties
  Title: software-properties-gtk crashed with TypeError in __new__(): object of type 'NoneType' has no len()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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