To test the pyCRAC scripts after installing the package on Slackware: cp -R /usr/share/pyCRAC-$VERSION / cd /pyCRAC-$VERSION/tests sh test.sh If all tests complete without an error, the package is working. Note that the tests for pyReadAligner.py and pyPileup.py use as input alignments made with novoalign, which is no longer available from novocraft without a paid license. In case of any problems please email the SBo maintainer of pyCRAC