# $scratch/$dir set scratch directory for installation
# $require and $compiler set to VALET dependent package 
# $pythondir set to Python install directory
# $installhome set to pakcage install dirrectory
pushd $scratch/$dir
vpkg_rollback all
vpkg_require $require $compiler
export PYTHONPATH=$PYTHONPATH:$pythondir
python setup.py install --home=$installhome
popd