网页抓取神器scrapy的安装搭建

1，安装pyhton2.7.x

#wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz
#tar xvf Python-2.7.3.tgz
#cd Python-2.7.3
#./configure
#make && make install

验证python

[root@~]# python
Python 2.7.3 (default, Feb 28 2013, 03:08:43) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()

2，安装setuptools

http://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c11.tar.gz

#wget http://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c11.tar.gz
#tar zxvf setuptools-0.6c11.tar.gz 
#cd setuptools-0.6c11
#python2.7 setup.py  install

3,安装Twisted

#cd setuptools-0.6c11
#easy_install Twisted

4,安装w3lib

#cd setuptools-0.6c11
#easy_install w3lib

5,安装libxml2或者用easy_install安装lxml

#cd setuptools-0.6c11
#easy_install lxml

验证lxml安装

[root@~]# python
Python 2.7.3 (default, Feb 28 2013, 03:08:43) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import lxml
>>> exit()

6,安装pyOpenSSL(这个是可选安装的，主要为了使scrapy能够支持https)

#wget http://launchpadlibrarian.net/58498441/pyOpenSSL-0.11.tar.gz
#tar zxvf pyOpenSSL-0.11.tar.gz 
#cd pyOpenSSL-0.11
#python setup.py install

7,安装pip

#cd setuptools-0.6c11
#easy_install pip

8,pip安装scrapy

#pip install scrapy

验证安装

[root@~]# scrapy
Scrapy 0.16.4 - no active project

Usage:
  scrapy  [options] [args]

Available commands:
  fetch         Fetch a URL using the Scrapy downloader
  runspider     Run a self-contained spider (without creating a project)
  settings      Get settings values
  shell         Interactive scraping console
  startproject  Create new project
  version       Print Scrapy version
  view          Open URL in browser, as seen by Scrapy

  [ more ]      More commands available when run from project directory

Use "scrapy  -h" to see more info about a command