ubuntu14.04安装Scrapy框架
ubuntu14.04安装Scrapy框架，首先，安装scrapy 需要以下程序或者库：
- python 2.7
- lxml
- OpenSSL
- pip or easy_install
一、pip是作为python包索引器easy_install的替代品，用于安装和管理Python包。
sudo apt-get install python-pip
二、我们必须要用下面的命令安装python开发库。如果包没有安装那么就会在安装scrapy框架的时候报关于python.h头文件的错误。
sudo apt-get install python-dev
三、验证是否安装Python 2.7 和 lxml 和 OpenSSL 和 pip
1、验证Python 2.7 ： python -V
2、验证lxml和OpenSSL：
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root@hoster:~# python Python 2.7.6 (default, Jun 22 2015, 17:58:13) [GCC 4.8.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import lxml >>> import OpenSSL |
3、验证pip:
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root@hoster:~# pip Usage: pip <command> [options] Commands: ...... |
注：如何安装lxml？：
1、sudo apt-get update
2、sudo apt-get install libxml2-dev libxslt-dev python-dev
3、sudo apt-get build-dep python-lxml（依赖包）
4、pip install lxml
四、scrapy框架既可从deb包安装也可以从源码安装。我们用pip（Python 包管理器）安装了deb包了。
sudo pip install scrapy（注：如果安装错误，请执行以下命令，安装依赖环境 sudo apt-get install libssl-dev libffi-dev，sudo pip install pyopenssl）
五、验证是否安装scrapy成功：
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root@hoster:~/testing# scrapy Scrapy 1.0.5 - project: testing Usage: scrapy <command> [options] [args] Available commands: bench Run quick benchmark test check Check spider contracts commands crawl Run a spider edit Edit spider fetch Fetch a URL using the Scrapy downloader genspider Generate new spider using pre-defined templates list List available spiders parse Parse URL (using its spider) and print the results 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 |
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