(1)  yaml

http://codyaray.com/2011/12/pyyaml-using-easy_install-on-mac-os-x-lion

1.报错

    ImportError: No module named yaml

2.安装

    sudo easy_install  pyyaml

error

   执行：sudo python -m easy_install pyyaml

   执行：sudo easy_install  pyyaml

(2)  Cheetah

    下载cheetah:http://pythonhosted.org//Cheetah/

Mac上 python 找不到 yaml模块