rpm -Uvh yum-2.4.1-1.fc4.noarch.rpm

warning: yum-2.4.1-1.fc4.noarch.rpm: Header V3 DSA signature: NOKEY, key ID 4f2a6fd2
error: Failed dependencies:
        python-elementtree is needed by yum-2.4.1-1.fc4.noarch
        python-sqlite is needed by yum-2.4.1-1.fc4.noarch
        rpm-python is needed by yum-2.4.1-1.fc4.noarch
        urlgrabber is needed by yum-2.4.1-1.fc4.noarch