Python安装Scrapy爬虫工具

原文出自：http://www.cnblogs.com/txw1958/archive/2012/07/12/scrapy_installation_introduce.html感谢作者。

一、 Scrapy简介

Scrapy is a fast high-level screen scraping and web crawling framework, used to crawl websites and extract structured data from their pages. It can be used for a wide range of purposes, from data mining to monitoring and automated testing.

官方主页： http://www.scrapy.org/

 

二、 安装Python2.7

官方主页：http://www.python.org/

下载地址：http://www.python.org/ftp/python/2.7.3/python-2.7.3.msi

 

1) 安装python

安装目录：D:\Python27

 

2) 添加环境变量

略System Properties -> Advanced -> Environment Variables - >System Variables -> Path -> Edit

 

3) 验证环境变量

T:\>set PathPath=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;D:\Rational\common;D:\Rational\ClearCase\bin;D:\Python27;D:\Python27\ScriptsPATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH

 

4) 验证Python

T:\>pythonPython 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32Type "help", "copyright", "credits" or "license" for more information.>>> exit()T:\>

 

 

三、 安装Twisted

Twisted is an event-driven networking engine written in Python and licensed under the open source

 

1) 安装setuptools

Download, build, install, upgrade, and uninstall Python packages -- easily!

官方主页：http://pypi.python.org/pypi/setuptools

下载地址：http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11.win32-py2.7.exe

安装过程：略

 

2) 安装Zope.Interface

官方主页：http://pypi.python.org/pypi/zope.interface/

下载地址：http://pypi.python.org/packages/2.7/z/zope.interface/zope.interface-4.0.1-py2.7-win32.egg

安装过程：

T:\>d:D:\>cd D:\Python27\ScriptsD:\Python27\Scripts>easy_install.exe zope.interface-4.0.1-py2.7-win32.eggProcessing zope.interface-4.0.1-py2.7-win32.eggcreating d:\python27\lib\site-packages\zope.interface-4.0.1-py2.7-win32.eggExtracting zope.interface-4.0.1-py2.7-win32.egg to d:\python27\lib\site-packagesAdding zope.interface 4.0.1 to easy-install.pth fileInstalled d:\python27\lib\site-packages\zope.interface-4.0.1-py2.7-win32.eggProcessing dependencies for zope.interface==4.0.1Finished processing dependencies for zope.interface==4.0.1D:\Python27\Scripts>

 

验证安装：

D:\Python27\Scripts>pythonPython 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32Type "help", "copyright", "credits" or "license" for more information.>>> import zope.interface>>>

 

3) 安装Twisted

官方主页：http://twistedmatrix.com/trac/wiki/TwistedProject

下载地址：http://pypi.python.org/packages/2.7/T/Twisted/Twisted-12.1.0.win32-py2.7.msi

安装过程：略

 

 

四、 安装w3lib

官方主页：http://pypi.python.org/pypi/w3lib

下载地址： http://pypi.python.org/packages/source/w/w3lib/w3lib-1.2.tar.gz

解压过程：略

安装过程：

T:\w3lib-1.2>python setup.py installrunning installrunning buildrunning build_pycreating buildcreating build\libcreating build\lib\w3libcopying w3lib\encoding.py -> build\lib\w3libcopying w3lib\form.py -> build\lib\w3libcopying w3lib\html.py -> build\lib\w3libcopying w3lib\http.py -> build\lib\w3libcopying w3lib\url.py -> build\lib\w3libcopying w3lib\util.py -> build\lib\w3libcopying w3lib\__init__.py -> build\lib\w3librunning install_libcreating D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\encoding.py -> D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\form.py -> D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\html.py -> D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\http.py -> D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\url.py -> D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\util.py -> D:\Python27\Lib\site-packages\w3libcopying build\lib\w3lib\__init__.py -> D:\Python27\Lib\site-packages\w3libbyte-compiling D:\Python27\Lib\site-packages\w3lib\encoding.py to encoding.pycbyte-compiling D:\Python27\Lib\site-packages\w3lib\form.py to form.pycbyte-compiling D:\Python27\Lib\site-packages\w3lib\html.py to html.pycbyte-compiling D:\Python27\Lib\site-packages\w3lib\http.py to http.pycbyte-compiling D:\Python27\Lib\site-packages\w3lib\url.py to url.pycbyte-compiling D:\Python27\Lib\site-packages\w3lib\util.py to util.pycbyte-compiling D:\Python27\Lib\site-packages\w3lib\__init__.py to __init__.pycrunning install_egg_infoWriting D:\Python27\Lib\site-packages\w3lib-1.2-py2.7.egg-infoT:\w3lib-1.2>

 

验证安装：

T:\>pythonPython 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32Type "help", "copyright", "credits" or "license" for more information.>>> import w3lib>>> 

 

 

五、 安装libxml2

官方主页：http://users.skynet.be/sbi/libxml-python/http://pypi.python.org/pypi/pyOpenSSL

下载地址：http://users.skynet.be/sbi/libxml-python/binaries/libxml2-python-2.7.7.win32-py2.7.exe

安装过程：略

验证安装：

T:\>pythonPython 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32Type "help", "copyright", "credits" or "license" for more information.>>> import libxml2>>> 

 

 

六、 安装pyOpenSSL

官方主页：http://pypi.python.org/pypi/pyOpenSSL

下载地址：http://pypi.python.org/packages/2.7/p/pyOpenSSL/pyOpenSSL-0.13.winxp32-py2.7.msi

安装过程：略

验证安装：

T:\>pythonPython 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32Type "help", "copyright", "credits" or "license" for more information.>>> import OpenSSL>>>

 

 

七、 安装Scrapy

官方主页：http://scrapy.org/

下载地址：http://pypi.python.org/packages/source/S/Scrapy/Scrapy-0.14.4.tar.gz

解压过程：略

安装过程：

T:\Scrapy-0.14.4>python setup.py install……Installing easy_install-2.7-script.py script to D:\Python27\ScriptsInstalling easy_install-2.7.exe script to D:\Python27\ScriptsInstalling easy_install-2.7.exe.manifest script to D:\Python27\ScriptsUsing d:\python27\lib\site-packagesFinished processing dependencies for Scrapy==0.14.4T:\Scrapy-0.14.4>

 

验证安装

T:\>scrapy
Scrapy 0.14.4 - no active project


Usage:
  scrapy <command> [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


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


T:\>

另外，我自己在安装过程中遇到了问题。安装pyOpenSSL会出错：一个C语言头文件找不到，接着安装Scrapy也会报这个错误。

解决方案是下载Python的另一个安装工具PIP，安装PIP之后把C:\Python27\Scripts路径加入环境变量path，在控制台输入pip显示如下表示安装成功：

我们找到下载的pyOpenSSL文件位置，在那里打开cmd直接输入pip pyOpenSSL-0.14.tar.gz回车，接着就安装OK了。

然后用pip安装下Scrapy包，OK，搞定。