addPythonPath() { addToSearchPathWithCustomDelimiter : PYTHONPATH $1/lib/pypy2.3/site-packages } toPythonPath() { local paths="$1" local result= for i in $paths; do p="$i/lib/pypy2.3/site-packages" result="${result}${result:+:}$p" done echo $result } envHooks=(${envHooks[@]} addPythonPath)