[Bug 1772681] Re: python-swauth package dropped but not removed

[Corey Bryant]

** Also affects: cloud-archive/newton
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/ocata
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/pike
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/rocky
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/queens
   Importance: Undecided
       Status: New

** Also affects: swauth (Ubuntu Bionic)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1772681

Title:
  python-swauth package dropped but not removed

Status in Ubuntu Cloud Archive:
  New
Status in Ubuntu Cloud Archive newton series:
  New
Status in Ubuntu Cloud Archive ocata series:
  New
Status in Ubuntu Cloud Archive pike series:
  New
Status in Ubuntu Cloud Archive queens series:
  New
Status in Ubuntu Cloud Archive rocky series:
  New
Status in swauth package in Ubuntu:
  New
Status in swauth source package in Bionic:
  New

Bug description:
  Versions greater than 1.0.4-0 have dropped the python-swauth package
  but do not remove it such that an upgrade breaks with error like:

  Unpacking swauth (1.1.0-3~cloud0) over (1.0.4-0ubuntu1.16.04.1) ...
  dpkg: error processing archive /var/cache/apt/archives/swauth_1.1.0-3~cloud0_all.deb (--unpack):
   trying to overwrite '/usr/lib/python2.7/dist-packages/swauth/__init__.py', which is also in package python-swauth 1.0.4-0ubuntu1.16.04.1
  Processing triggers for libc-bin (2.23-0ubuntu10) ...
  Processing triggers for man-db (2.7.5-1) ...
  Processing triggers for shared-mime-info (1.5-2ubuntu0.1) ...
  Processing triggers for sgml-base (1.26+nmu4ubuntu1) ...
  Processing triggers for ureadahead (0.100.0-19) ...
  Processing triggers for systemd (229-4ubuntu21.2) ...
  Errors were encountered while processing:
   /var/cache/apt/archives/swauth_1.1.0-3~cloud0_all.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  
  If i remove python-swauth prior to upgrade it works just fine.

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