- Python 2.7
- lxml. Most Linux distributions ships prepackaged versions of lxml. Otherwise refer tohttp://lxml.de/installation.html
- OpenSSL. This comes preinstalled in all operating systems except Windows (see Platform specific installation notes)
- pip or easy_install Python package managers
http://doc.scrapy.org/en/latest/intro/install.html
error: Python.h: No such file or directory
安装python：sudo apt-get install python-dev
Try if this works sudo apt-get install python-dev and some time sudo apt-get update also it will install any missing header It helped me alot....
ImportError: No module named w3lib.http
pip install w3lib
ImportError: No module named twisted
pip install twisted
ImportError: No module named lxml.html
pip install lxml
error: libxml/xmlversion.h: No such file or directory
解决：apt-get install libxml2-dev libxslt-dev
apt-get install python-lxml
ImportError: No module named cssselect
解决：pip install cssselect
ImportError: No module named OpenSSL
pip install pyOpenSSL
附Python安装命令：
python setup.py install