scrapy startproject 不是直接在终端输入命令就好吗？

C:\Users\bo>python
Python 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit (AMD64)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> import scrapy
>>> scrapy startproject cnbeta
File "<stdin>", line 1
scrapy startproject cnbeta
^
SyntaxError: invalid syntax
>>>

试了几次，为什么总是错误呢。

谢谢大家。