I have two packages, python-modules and python-modules-foo. python-modules-foo does not require python-modules to be installed, but if python-modules is installed, it must be at least version X. In this scenario, a Python module foo is part of python-modules prior to version X; I then moved foo to its own package and removed it from python-modules as of version X.
Currently, I have Conflicts: python-modules < X in the spec file for python-modules-foo, which prevents python-modules-foo from being installed unless python-modules version X is already installed. Is there a way to configure the packages and/or yum so that yum install python-modules-foo will upgrade python-modules if necessary, but does not install otherwise?
I realize I can simply attempt to install python-modules-foo and, if it fails, repeat after upgrading python-modules myself. I am just curious if yum can handle this type of optional dependency on its own.
