Description of problem:
'sudo yum install scons' yields this error "Package scons-0.97-2.fc7.noarch.rpm
is not signed"
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. sudo yum clean packages
2. sudo yum install scons
This error mesage:
"Package plt-scheme-370-3.fc7.i386.rpm is not signed"
This is a problem with the release system and not of this package. Maybe you try
to completely clean the yum cache and try again later.