On Tue, Apr 13, 2021 at 10:59:22AM +0200, Andreas Beckmann wrote: > Package: apt > Version: 1.8.2.2 > Severity: important > User: debian...@lists.debian.org > Usertags: piuparts > > Hi, > > the following packages are installed in buster: > > Package: python-docutils > Version: 0.14+dfsg-4 > Depends: docutils-common (= 0.14+dfsg-4), python-roman, python:any (<< 2.8), > python:any (>= 2.7~) > Recommends: docutils-doc (= 0.14+dfsg-4), libpaper-utils, python-pil, > python-pygments > > Package: python3-docutils > Version: 0.14+dfsg-4 > Depends: docutils-common (= 0.14+dfsg-4), python3-roman, python3:any > Recommends: libpaper-utils, python3-pil, python3-pygments > > in bullseye python-docutils is gone and the other one has > > Package: python3-docutils > Version: 0.16+dfsg-3 > Depends: docutils-common (= 0.16+dfsg-3), python3-roman, python3:any > Recommends: libpaper-utils, python3-pil, python3-pygments > > but 'apt-get upgrade' fails to find an upgradable set in some cases as > can be seen in the attached log from catkin: > > [...] > Dependencies are not satisfied for catkin:amd64 < 0.7.14-10 -> 0.8.9-2 > @ii umU Ib > > Keeping package catkin:amd64 > Dependencies are not satisfied for python-docutils:amd64 < 0.14+dfsg-4 > @ii mK Ib > > Keeping package python-docutils:amd64 > Dependencies are not satisfied for python-docutils:amd64 < 0.14+dfsg-4 > @ii mK Ib > > Package python-docutils:amd64 python-docutils:amd64 Depends on > docutils-common:amd64 < 0.14+dfsg-4 -> 0.16+dfsg-3 @ii umU > (= 0.14+dfsg-4) > Keeping Package docutils-common:amd64 due to Depends > Policy breaks with upgrade of python-docutils:amd64 < 0.14+dfsg-4 @ii mK > IPb > > Policy breaks with upgrade of python-docutils:amd64 < 0.14+dfsg-4 @ii mK > IPb > > Policy breaks with upgrade of python-docutils:amd64 < 0.14+dfsg-4 @ii mK > IPb > > Policy breaks with upgrade of python-docutils:amd64 < 0.14+dfsg-4 @ii mK > IPb > > > Some packages could not be installed. This may mean that you have > requested an impossible situation or if you are using the unstable > distribution that some required packages have not yet been created > or been moved out of Incoming. > The following information may help to resolve the situation: > > The following packages have unmet dependencies: > python3-docutils : Depends: docutils-common (= 0.16+dfsg-3) but > 0.14+dfsg-4 is to be installed > E: Broken packages > > > This can be 'fixed' in python3-docutils by adding an explicit > Breaks: python-docutils (#986871) > (there is currently an implicit Breaks due to the strictly versioned > dependency on docutils-common).
I believe that's a sufficient answer to the bug. For analysing on the APT side, and adding it to the list of regression tests, we need an EDSP dump file: Set APT_EDSP_DUMP_FILENAME to a path, and run apt install/upgrade/etc --solver dump and then attach the file. Then you can also check if this is still an issue in 2.2, by piping it to /usr/lib/apt/solvers/apt. Not sure it's worth keeping a bug open in the bug tracker for solver improvements, probably better to just dump the EDSP into the solver test case repo. -- debian developer - deb.li/jak | jak-linux.org - free software dev ubuntu core developer i speak de, en
