Look at the build.log from gettext for example (http://koji.fedoraproject.org/koji/getfile?taskID=84453&name=build.log): /usr/lib/rpm/pythondeps.sh: line 8: python: command not found Better do which python >/dev/null 2>&1 if [ $? == 1 ]; then exit 0; fi before calling python. Yes, it's cosmetic.... -of