Comment 8 for bug 1772681

Ed,

Thanks for the patches. I think you're going to wan to use the following (more details at [1], [2], and [3]):

Package: swauth
  ...
  Breaks:
    python-swauth (<< 1.1.0-1),
  Replaces:
    python-swauth (<< 1.1.0-1),

Package: python-swauth
Depends:
 swauth,
 ${misc:Depends},
Architecture: all
Priority: optional
Section: oldlibs
Description: transitional dummy package for python-swauth
 This transitional package to swauth is safe to remove.

[1] https://wiki.debian.org/PackageTransition
[2] https://www.debian.org/doc/debian-policy/#packages-which-break-other-packages-breaks
[3] https://wiki.debian.org/RenamingPackages