After upgrading python to devel (python 2.4) yum stopped working and
failed to "import yumain". Installing a new yum-rpm from devel fixed
that problem, but "import rpm" failed. After upgrading rpm-python,
everything works fine again.

Obviously, the dependencies of yum, rpm-python and python are not
specified correctly. Since I considere it the yum-maintainers
responsibility to specify the yum-dependencies, I file this bug here.
My older yum-package should have specified that it depends on a
certain python-release. Since that can't be fixed now anymore one
might argue that the new python-package has to specify the conflict to
prevent yum from breaking.

However, I believe the yum-maintainer should be responsible to
organise the yum-dependencies either way. Next yum-rpms should state
their dependencies correctly to prevent future problems. See bug
114059 for more information.

Sadly, such python-dependency-problems are not seen for the first
time, compare Bug 138692.

It would be great if those dependency-issues could be fixed permanently.