Centos7安装Scrapy过程

不多说，直接开整

一、安装开发包组、升级操作系统

#yum groupinstall "Development Tools" -y

#yum update -y

注：

1、如果你的系统上的python不是python2.7以上版本请升级到python2.7以上版本（由于Scrapy 需要python 2.7 以上的版本）

#下载python2.7

#wget http://python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2

#解压

#tar -jxvf Python-2.7.3.tar.bz2

#cd Python-2.7.3

#安装

#./configure

#make all

#make install

#make clean

#make distclean

#查看python 版本

#/usr/local/bin/python2.7 -V

#建立软连接，使系统默认的 python指向 python2.7

#mv /usr/bin/python /usr/bin/python2.6.6

#ln -s /usr/local/bin/python2.7 /usr/bin/python

#解决系统 Python 软链接指向 Python2.7 版本后，因为yum是不兼容 Python 2.7的，所以yum不能正常工作，我们需要指定 yum 的Python版本

vim /usr/bin/yum

将文件头部的

#!/usr/bin/python

改成

#!/usr/bin/python2.6.6

2、强烈建议升级python2.7后再安装pip与setuptools,如果不这样操作会出现很多莫明的问题，让你酸爽到天明！！

3、如果你是升级到python2.7，更大的可能性是全部通过python setup.py 编译安装，所需要的包含但不限于这些包

lxml,zope.interface,Twisted,characteristic,pyasn1-modules,service-identity,Scrapy

PS:我一开始就是编译安装的，其中最多的问题是:

error:command 'gcc' failed with exit status 1

后来我发现，如果有这样的提示不是缺少devel包就是少某一个lib库文件;最令我哭笑不得是安装Scrapy 提示成功，但无法创建项目，测试样例都跑不了，最终我果断的换centos7了！

###################以下内容都是Centos 7上的操作，升级到python2.7的同学请绕行##############

二、vim /etc/yum.repo/rpmforge.repo 指定rpmforge,来安装liffi-devel【如果不指定源，yum install liffi-devel会提示没有找到】

[rpmforge]

name = Red Hat Enterprise $releasever - RPMforge.net - dag

#baseurl = http://apt.sw.be/redhat/el5/en/$basearch/dag

mirrorlist = http://apt.sw.be/redhat/el7/en/mirrors-rpmforge

#mirrorlist = file:///etc/yum.repos.d/mirrors-rpmforge

enabled = 1

protect = 0

gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmforge-dag

gpgcheck = 1

#rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt

#yum install liffi-devel -y

三、如果系统中安装有audit这个包请先移除，它会影响到Scrapy的安装

#yum remove audit

四、安装Scarpy 所需要的开发包

#yum install -y python-devel openssl-devel libxslt-devel libxml2-devel

五、安装pip与setuptools

#yum install python-pip -y

#pip install setuptools

#pip install setuptoos --upgrade

六、安装Scrapy

# pip install Scrapy

Collecting Scrapy

Using cached Scrapy-1.0.3-py2-none-any.whl

Requirement already satisfied (use --upgrade to upgrade): cssselect>=0.9 in /usr/lib/python2.7/site-packages (from Scrapy)

Requirement already satisfied (use --upgrade to upgrade): queuelib in /usr/lib/python2.7/site-packages (from Scrapy)

Requirement already satisfied (use --upgrade to upgrade): pyOpenSSL in /usr/lib/python2.7/site-packages (from Scrapy)

Requirement already satisfied (use --upgrade to upgrade): w3lib>=1.8.0 in /usr/lib/python2.7/site-packages (from Scrapy)

Collecting lxml (from Scrapy)

Using cached lxml-3.4.4.tar.gz

Collecting Twisted>=10.0.0 (from Scrapy)

Using cached Twisted-15.4.0.tar.bz2

Requirement already satisfied (use --upgrade to upgrade): six>=1.5.2 in /usr/lib/python2.7/site-packages (from Scrapy)

Collecting service-identity (from Scrapy)

Using cached service_identity-14.0.0-py2.py3-none-any.whl

Requirement already satisfied (use --upgrade to upgrade): cryptography>=0.7 in /usr/lib64/python2.7/site-packages (from pyOpenSSL->Scrapy)

Collecting zope.interface>=3.6.0 (from Twisted>=10.0.0->Scrapy)

Using cached zope.interface-4.1.3.tar.gz

Collecting characteristic>=14.0.0 (from service-identity->Scrapy)

Using cached characteristic-14.3.0-py2.py3-none-any.whl

Collecting pyasn1-modules (from service-identity->Scrapy)

Using cached pyasn1_modules-0.0.8-py2.py3-none-any.whl

Requirement already satisfied (use --upgrade to upgrade): pyasn1 in /usr/lib/python2.7/site-packages (from service-identity->Scrapy)

Requirement already satisfied (use --upgrade to upgrade): idna>=2.0 in /usr/lib/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL->Scrapy)

Requirement already satisfied (use --upgrade to upgrade): setuptools in /usr/lib/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL->Scrapy)

Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/lib/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL->Scrapy)

Requirement already satisfied (use --upgrade to upgrade): ipaddress in /usr/lib/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL->Scrapy)

Requirement already satisfied (use --upgrade to upgrade): cffi>=1.1.0 in /usr/lib64/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL->Scrapy)

Requirement already satisfied (use --upgrade to upgrade): pycparser in /usr/lib/python2.7/site-packages (from cffi>=1.1.0->cryptography>=0.7->pyOpenSSL->Scrapy)

Installing collected packages: lxml, zope.interface, Twisted, characteristic, pyasn1-modules, service-identity, Scrapy

Running setup.py install for lxml

Running setup.py install for zope.interface

Running setup.py install for Twisted

Successfully installed Scrapy-1.0.3 Twisted-15.4.0 characteristic-14.3.0 lxml-3.4.4 pyasn1-modules-0.0.8 service-identity-14.0.0 zope.interface-4.1.3

七、创建项目

[root@localhost workspace]# scrapy startproject tutorial

2015-10-15 21:54:24 [scrapy] INFO: Scrapy 1.0.3 started (bot: scrapybot)

2015-10-15 21:54:24 [scrapy] INFO: Optional features available: ssl, http11

2015-10-15 21:54:24 [scrapy] INFO: Overridden settings: {}

New Scrapy project 'tutorial' created in:

/workspace/tutorial

You can start your first spider with:

cd tutorial

scrapy genspider example example.com

八、目录结构

[root@localhost workspace]# tree

└── tutorial

├── scrapy.cfg

└── tutorial

├── __init__.py

├── items.py

├── pipelines.py

├── settings.py

└── spiders

└── __init__.py

3 directories, 6 files

九、Scrapy相关文档

http://www.tuicool.com/articles/URNVV3E 【编译安装Scrapy，但很不幸，我没成功】
https://scrapy-chs.readthedocs.org/zh_CN/0.24/intro/overview.html 【很早之前Scrapy中文翻译】
http://scrapy.org/
http://doc.scrapy.org/en/master/

十、总结

再次证明了度娘确实不好用；
一定要看官方的文档，搜索出来的不全面。这样可以少走很多弯路，减少不必要的工作量；
遇到的问题要先思考，冷静3s【也就一个Q[三重爪击]的时间】，再去搜索问题；
解决问题要形成文档，方便自己也方便别人。

(责任编辑：IT)

搜索

热门标签:

Centos7安装Scrapy过程