请问一下:安装 ultisnips 插件导致 vim 无法启动

RT:
github.com/SirVer/ultisnips
把 Plugin 'SirVer/ultisnips’放在.vimrc 文件后,启动 vim 报错:

Fatal Python error: Py_Initialize: Unable to get the locale encoding
ImportError: No module named 'encodings’
Vim: Caught deadly signal ABRT
Vim: Finished.
Aborted

请问怎么解决呢?