http://stackoverflow.com/a/15174760

Preferences -> Browse Packages -> Python -> Python.sublime-build

加上一句 env，比如这样：

{
    "cmd": ["/usr/local/bin/python3.3", "-u", "$file"],
    "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
    "selector": "source.python",
    "env": {"LANG": "en_US.UTF-8"}
}

注意 selector 最后的逗号！