目的：不想改变linux 自带的python,只想要用特定的非root用户运行特定版本的python

1、进入非root用户

2.新建一个python3.5的安装目录

[a4_csbdc@bdc8165 ~]$  mkdir /opt/aspire/product/a4_csbdc/python/python3.5.2

3.解压下载的 python包

[a4_csbdc@bdc8165 pythoninstall]$  tar  -xvf Python-3.5.2.tgz

[a4_csbdc@bdc8165 pythoninstall]$ cd  Python-3.5.2    #进入解压后的目录

4.进行configure

[a4_csbdc@bdc8165 Python-3.5.2]$./configure   --prefix=/opt/aspire/product/a4_csbdc/python/python3.5.2   # 重要！！！，--prefix=后面的就是安装目录

5.make

[a4_csbdc@bdc8165 Python-3.5.2]$ make

......

Fatal Python error: Py_Initialize: Unable to get the locale encoding

LookupError: unknown encoding: GB2312

Current thread 0x00002b7164be6050 (most recent call first):

/bin/sh: line 5:  8742 已放弃                  ./python -E -S -m sysconfig --generate-posix-vars

generate-posix-vars failed

make: *** [pybuilddir.txt] 错误 1

出错了：字符编码的问题

[a4_csbdc@bdc8165 Python-3.5.2]$cat $HOME/.bash_profil

......

export LANG=zh_CN.GBK   #其中有这么一句

.......

6.暂时改变一下字符编码

[a4_csbdc@bdc8165 Python-3.5.2]$  export LANG="en_US.UTF-8"

[a4_csbdc@bdc8165 Python-3.5.2]$ echo $LANG   #确认一下

en_US.UTF-8

7.再来make一下

[a4_csbdc@bdc8165 Python-3.5.2]$ make

........

Python build finished successfully!

8.make install

[a4_csbdc@bdc8165 Python-3.5.2]$make install

....

Collecting setuptools

Collecting pip

Installing collected packages: setuptools, pip

Successfully installed pip-8.1.1 setuptools-20.10.1

9. 安装完成

10.配置一下环境变量

[a4_csbdc@bdc8165 python3.5.2]$ vi  $HOME/.bash_profile

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

. ~/.bashrc

fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH

export PATH=/opt/aspire/product/a4_csbdc/jdk/bin:${PATH}

export PATH=${PATH}:/opt/aspire/product/a4_csbdc/python/python3.5.2/bin  #在export PATH 之前加入python安装路径

export JAVA_HOME=/opt/aspire/product/a4_csbdc/jdk

export CLASSPATH=/opt/aspire/product/a4_csbdc/jdk/lib

export LC_CTYPE=zh_CN

export LANG=zh_CN.GBK

export PATH

alias python="/opt/aspire/product/a4_csbdc/python/python3.5.2/bin/python3.5"  #设置一下别名

注：如果环境变量不配置，则要进入到安装目录/opt/aspire/product/a4_csbdc/python/python3.5.2/bin 中执行命令python3.5

11、生效环境变量

[a4_csbdc@bdc8165 python3.5.2]$ source  $HOME/.bash_profile

12、运行一下

[a4_csbdc@bdc8165 ~]$python

Python 3.5.2 (default, Nov 12 2018, 11:55:21)

[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux|

Type "help", "copyright", "credits" or "license" for more information.

>>>

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