Hi On Sun, Feb 26, 2012 at 07:06:31PM +0000, Andrea Crotti wrote: > For example I just installed python2-tinkerer from aur, which needs > python2-sphinx. > I had installed python-sphinx and they interfere with each other. > So I removed python-sphinx and reinstalled again. python{,2}-sphinx are both packages from [community]. Aur helpers may differ in the quality of dependency resolution they provide. The packages in question indeed conflict out of some reason, as one can see in [1]. > which seems wrong to me. > Is it maybe that packages from aur don't have the same weight when > checking for reverse dependencies? What? What software is it you mean that is checking for reverse dependencies here? If a package is installed as dependency of another (unspecified) package is stored by pacman in a boolean field. please post the following command's output: $ pacman -Qi python2-tinkerer After testing it myself, python2-sphinx disappeared from the output of -Qdt, which is correct. My guess is you did makepkg, but not makepkg -i / it failed installation by pacman and you in fact don't have python2-tinkerer installed. cheers! mar77i [1] http://projects.archlinux.org/svntogit/community.git/tree/trunk/PKGBUILD?h=packages/python-sphinx