先確定有EPEL，然後:
$sudo yum install python26
再裝 python26-virtualenv python-pip:
$yum install python26-virtualenv python-pip
製作環境：
$mkdir -p python-envs
$cd python-envs
$virtualenv-2.6 –no-site-packages –distribute myenv
$pip-python install -E myenv yolk
啟用:
$source myenv/bin/activate
$yolk -l