[Bug 1526267] Re: .../softwarecenter/backend/scagent.py : no module named "spawn_helper"

[Jeffery Wilkins]

ok so the solution is to purge software-center from your system
after which you will see this error

root at xubuntu:/tmp# update-apt-xapian-index --update
Reading .desktop files from /usr/share/app-install/desktop/: done.  
Reading Xapian index... 0%Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 109, in <module>
    indexer.incrementalUpdate()
  File "/usr/lib/python3/dist-packages/axi/indexer.py", line 703, in incrementalUpdate
    self.updateIndex(dbpath)
  File "/usr/lib/python3/dist-packages/axi/indexer.py", line 666, in updateIndex
    unchanged, outdated, obsolete = self.compareCacheToDb(cache, db)
  File "/usr/lib/python3/dist-packages/axi/indexer.py", line 633, in compareCacheToDb
    if not cache.has_key(pkg) or not cache[pkg].candidate:
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 238, in has_key
    return key in self
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 242, in __contains__
    return self.__is_real_pkg(self._cache[key])
TypeError: Expected a string or a pair of strings

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https://bugs.launchpad.net/bugs/1526267

Title:
  .../softwarecenter/backend/scagent.py : no module named "spawn_helper"

Status in apt-xapian-index package in Ubuntu:
  Confirmed
Status in software-center package in Ubuntu:
  New
Status in synaptic package in Ubuntu:
  New

Bug description:
  xenial install

  get that crash, but apport fails to report it; so i join the crash
  file here to get the details

  
  software-center 13.10-0ubuntu12
  --- 
  ApportVersion: 2.19.3-0ubuntu2
  Architecture: amd64
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 16.04
  NonfreeKernelModules: nvidia
  Package: apt-xapian-index 0.47ubuntu3
  PackageArchitecture: all
  ProcVersionSignature: Ubuntu 4.3.0-4.13-generic 4.3.2
  Tags:  xenial
  Uname: Linux 4.3.0-4-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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