[Bug 1689495] Re: unattended-upgrade crashed with AttributeError in _write(): 'NoneType' object has no attribute 'write'

[Brian Murray]

Robie - Do you have any more information about how this crash occurs and
its effects?

** Tags removed: rls-aa-incoming

** Changed in: unattended-upgrades (Ubuntu)
       Status: Confirmed => Incomplete

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Title:
  unattended-upgrade crashed with AttributeError in _write(): 'NoneType'
  object has no attribute 'write'

Status in unattended-upgrades package in Ubuntu:
  Incomplete

Bug description:
  This happened after upgrading it to Artful.

  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: unattended-upgrades 0.93.1ubuntu3
  ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8
  Uname: Linux 4.10.0-20-generic x86_64
  ApportVersion: 2.20.4-0ubuntu6
  Architecture: amd64
  CrashCounter: 1
  Date: Tue May  9 08:20:24 2017
  ExecutablePath: /usr/bin/unattended-upgrade
  InstallationDate: Installed on 2017-05-05 (3 days ago)
  InstallationMedia: Ubuntu-MATE 17.04 "Zesty Zapus" - Release amd64 (20170412)
  InterpreterPath: /usr/bin/python3.5
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/bin/unattended-upgrade -d 3
  ProcEnviron:
   LANGUAGE=en_IE:en
   PATH=(custom, no user)
   LANG=en_IE.UTF-8
  PythonArgs: ['/usr/bin/unattended-upgrade', '-d', '3']
  SourcePackage: unattended-upgrades
  Title: unattended-upgrade crashed with AttributeError in _write(): 'NoneType' object has no attribute 'write'
  UpgradeStatus: Upgraded to artful on 2017-05-05 (3 days ago)
  UserGroups:

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