On Thu, 2018-07-05 at 15:06 +0200, Andreas Beckmann wrote: > But the upgrade path from stretch is not clean: > > Selecting previously unselected package python3-cliapp. > Preparing to unpack .../python3-cliapp_1.20170827-1_all.deb ... > Unpacking python3-cliapp (1.20170827-1) ... > dpkg: error processing archive > /var/cache/apt/archives/python3-cliapp_1.20170827-1_all.deb (--unpack): > trying to overwrite '/usr/share/man/man5/cliapp.5.gz', which is also in > package python-cliapp 1.20160724-2 > Errors were encountered while processing: > /var/cache/apt/archives/python3-cliapp_1.20170827-1_all.deb > > So you will need some Breaks and Replaces against the old > package in stretch.
I see the problem now. I was confused by you calling it an upgrade problem, when it isn't. It's a problem with one package containing the same file as another package, and the two packages are only tangentially related. It doesn't seem to me to be a particularly likely scenario, to me. A user would need to change their sources.list to point from stretch to buster, and then not upgrade anything else, but install python3-cliapp. I'll add the Breaks and Replaces some day. Or have all of cliapp removed from Debian.
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