This is my solution:
Remove any plasmoid and its directory in $HOME/.kde/share/apps/
yum remove kdebase-workspace-python-applet
yum install python-dev compat-python24-devel.i386 compat-python24-tools.i386 dbus-python-devel.i386 gnome-python2-devel.i386 ipython.noarch pymol-wxpython.i386 python-devel.i386 python-fedora.noarch python-py.i386 python-pysctp.i386
yum install kdebase-workspace-python-applet
the re-install plasmoid with command:
plasmapkg -i plasmoid
plasmapkg -i 101229-gmail-plasmoid-0.7.3.plasmoid