环境：windows10 64bit
需要安装:
1. wheel
pip3 install wheel
2. lxml
http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml
3. PyOpenssl
https://pypi.python.org/pypi/pyOpenSSL#downloads
4. Twisted
http://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
5. Pywin32
https://sourceforge.net/projects/pywin32/files/pywin32/Build%20220/
6. Scrapy
pip3 install scrapy
Linux Ubuntu 16.04
sudo apt-get install build-essential python3-dev libssl-deb libffi-dev libxml2 libxml2-dev libxslt1-dev zlib1g-dev
pip3 install scrapy