安装scrapy提示Could not find a version that satisfies the requirement twisted

安装scrapy提示

Couldnotfind a version that satisfies the requirement twisted(fromversions:)Nomatching distribution foundfortwisted

各种折腾....

最后发拦唯返现是因为系统centos，当时将自带的python2.6 升级到2.7引起的问题，升级之后一切都好，pip安装其他包都没毛病，就是安装twisted有问题

解决办法：

sudo yum install bzip2-devel，

然简饥后在python源码目录重山桐新configure    make   make install

ubuntu的朋友sudo apt-get install libbz2-dev

注：所有命迹则令均在root下执行

1、Couldn't find index page for 'incremental' (maybe misspelled?)

解决：

pip install --upgrade incremental -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com

2、 unable to execute '局迹gcc': No such file or directory

error: command 'gcc' failed with exit status 1

解决：

yum install gcc -y

3、安装scrapy相姿腊棚关

pip install -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com -r rule文件

rule文件.eg:

scrapy>=1.3.3

scrapy-redis>=0.6.8

scrapyd>=1.2.0

scrapyd-client>=1.1.0

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