windows下sys.exit()遇到的问题，求解求解求解求解求解求解求解求解

简明python教程里面的，处理异常：
import sys
try:
s=raw_input('enter something-->')
except EOFError:
print'\n why did you do an EOF on me?'
sys.exit()
except:
print'\n some error/exception occurred.'
print'Done'
运行后：
enter something-->
why did you do an EOFonme?
Traceback (most recent call last):
File "C:\Documents and Settings\Administrator\桌面\处理异常.py", line 7, in <module>
sys.exit()
SystemExit
这里面sys.exit()出现什么问题了？要怎么解决啊？求解求解求解求解求解

人呢

是哦，要在哪里执行呢？

thanks