需要安装PIL模块： yum install python-devel yum install libjpeg libjpeg-devel zlib zlib-devel freetype freetype-devel lcms lcms-devel
yum install python-imaging
python 使用Django Simple Captcha之缺少PIL模块
原文：http://my.oschina.net/u/1429171/blog/490134
