Can't locate Filter/decrypt.pm in @INC (you may need to install the Filter::decrypt module)

在centos的宿主机上使用Ubuntu镜像时候，执行python脚本遇到 Can't locate Filter/decrypt.pm in @INC (you may need to install the Filter::decrypt module)报错

查阅很多博客 最后在
http://compgroups.net/comp.lang.perl.misc/can-t-locate-filter-decrypt.pm/47668
找到答案
perl -MCPAN -e 'install Filter::decrypt'
安装会需要很久 中途不要中断。