官网下载python后安装，并将python路径(C:\Python27;C:\Python27\Scripts;)加入环境变量，验证是否安装ok：
>python Python 2.7.9 (default, Dec 10 2014, 12:28:03) [MSC v.1500 64 bit (AMD64)] on win 32 Type "help", "copyright", "credits" or "license" for more information. >>>
官网下载setuptools（http://pypi.python.org/pypi/setuptools）安装
pip install scrapy
原文：http://www.cnblogs.com/lurenjiashuo/p/python-note-scrapy.html