Centos6安装Python2.7.13

 [root@localhost ~]# python --version
 Python 2.6.6

 [root@localhost ~]# cat /etc/redhat-release
 CentOS release 6.10 (Final)

 [root@localhost ~]# yum groupinstall -y "Development tools"
 [root@localhost ~]# yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel

 [root@localhost ~]# wget https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tgz
 [root@localhost ~]# tar zxf Python-2.7.13.tgz
 [root@localhost ~]# cd Python-2.7.13
 [root@localhost Python-2.7.13]# ./configure
 [root@localhost Python-2.7.13]# make && make install
 ##默认 Python 2.7.13 会安装在 /usr/local/bin 目录下
 [root@localhost Python-2.7.13]# ll -tr /usr/local/bin/python*
 -rwxr-xr-x1root root 626156810月 1217:17 /usr/local/bin/python2.7
 -rwxr-xr-x1root root    168710月 1217:17 /usr/local/bin/python2.7-config
 lrwxrwxrwx 1root root       710月 1217:17 /usr/local/bin/python -> python2
 lrwxrwxrwx 1root root       910月 1217:17 /usr/local/bin/python2 -> python2.7
 lrwxrwxrwx 1root root      1610月 1217:17 /usr/local/bin/python2-config -> python2.7-config
 lrwxrwxrwx 1root root      1410月 1217:17 /usr/local/bin/python-config -> python2-config
 ##而系统自带的 Python 是在 /usr/bin 目录下
 [root@localhost Python-2.7.13]# ll -tr /usr/bin/python*
 -rwxr-xr-x. 2root root 48648月  182016/usr/bin/python2.6
 -rwxr-xr-x. 2root root 48648月  182016/usr/bin/python
 lrwxrwxrwx. 1root root    61月  252019/usr/bin/python2 -> python

 ##先把系统默认的旧版 Python 重命名
 [root@localhost Python-2.7.13]# mv /usr/bin/python /usr/bin/python.old
 ##再删除系统默认的 python-config 软链接
 [root@localhost Python-2.7.13]# rm -f /usr/bin/python-config
 ##最后创建新版本的 Python 软链接
 [root@localhost Python-2.7.13]# ln -s /usr/local/bin/python /usr/bin/python
 ##以上步骤做完以后，目录 /usr/bin 下的 Python 应该是
 [root@localhost Python-2.7.13]# ll -tr /usr/bin/python*
 -rwxr-xr-x. 2root root 48648月  182016/usr/bin/python.old
 -rwxr-xr-x. 2root root 48648月  182016/usr/bin/python2.6
 lrwxrwxrwx. 1root root    61月  252019/usr/bin/python2 -> python
 lrwxrwxrwx  1root root   2110月 1217:20 /usr/bin/python -> /usr/local/bin/python

 [root@localhost Python-2.7.13]# python --version
 Python 2.7.13
 ##返回 Python 2.7.13 为正常

 [root@localhost Python-2.7.13]# wget https://bootstrap.pypa.io/ez_setup.py -O - | python
 ##setuptools 正确安装完成后，easy_install 命令就会被安装在 /usr/local/bin 目录下了

 [root@localhost Python-2.7.13]# easy_install pip
 ##正确安装完成后，pip 命令就会被安装在 /usr/local/bin 目录下了

 [root@localhost Python-2.7.13]# vim /usr/bin/yum
  1#!/usr/bin/python2.6
 ##修改配置文件头部#!/usr/bin/python改为--->#!/usr/bin/python2.6

 [root@localhost Python-2.7.13]# pip install distribute
 DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
 Collecting distribute
 Downloading https://files.pythonhosted.org/packages/5f/ad/1fde06877a8d7d5c9b60eff7de2d452f639916ae1d48f0b8f97bf97e570a/distribute-0.7.3.zip (145kB)
     |████████████████████████████████| 153kB 252kB/s 
 Requirement already satisfied: setuptools>=0.7 in/usr/local/lib/python2.7/site-packages/setuptools-33.1.1-py2.7.egg (from distribute) (33.1.1)
 Installing collected packages: distribute
 Running setup.py install fordistribute ... done
 Successfully installed distribute-0.7.3