python升级2.6到2.7 和 pip的安装

安装依赖, 解决一些奇怪的问题

例如安装pip时遇到:

Traceback (most recent call last): 
  File "<string>", line 1, in <module> 
zipimport.ZipImportError: can't decompress data; zlib not available 

 

yum -y install gcc gcc-c++  make automake autoconf kernel-devel ncurses-devel libxml2-devel openssl-devel curl-devel libjpeg-devel libpng-devel  pcre-devel libtool-libs libtool-ltdl-devel freetype-devel gd zlib-devel file bison patch mlocate flex diffutils   readline-devel glibc-devel glib2-devel bzip2-devel gettext-devel libcap-devel libmcrypt-devel

 

 

安装python2.7

下载2.7源码

　　wget https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tgz

解压

　　tar -xf ./Python-2.7.13.tgz

创建文件夹

　　mkdir /usr/local/python2.7/

安装

　　cd ./Python-2.7.13
　　./configure  --prefix=/usr/local/python2.7/

备份当前版本

　　mv /usr/bin/python /usr/bin/python_bak

建立新版本软链接

　　ln -s /usr/local/python27/bin/python2.7 /usr/bin/python

检查版本

　　python -V

 

安装pip

下载安装脚本

　　wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py

安装

　　python get-pip.py

copy pip脚本到bin(可以先检查是否已经存在pip命令)

　　cp /usr/local/python27/bin/pip /usr/bin/pip