$ compare_packages -a --provides -- python-module-psycopg-1.1.21-alt1.0.i586.rpm -- python-module-psycopg-1.1.21-alt1.0.x86_64.rpm |grep '^[+-][^+-]' -python2.4(psycopg)
Fixed in python-module-psycopg-1.1.21-alt1.1