Centos7.1搭建pyenv环境并安装python 2.7.10

[root@p168 ~]# cat /etc/redhat-release

CentOS Linux release 7.1.1503 (Core)
-----------------------------------------------------------------------

A.安装依赖包

yum install readline readline-devel readline-static -y

yum install openssl openssl-devel openssl-static -y

yum install sqlite-devel -y

yum install bzip2-devel bzip2-libs -y

yum install git -y

yum install gcc-c++ -y

B.开始安装pyenv

git clone git://github.com/yyuu/pyenv.git ~/.pyenv

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc

echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc

echo 'eval "$(pyenv init -)"' >> ~/.bashrc

exec $SHELL -l

注意:考虑到多用户通用性,可考虑改成如下脚本:

git clone git://github.com/yyuu/pyenv.git /opt/.pyenv

echo 'export PYENV_ROOT="/opt/.pyenv"' >> /etc/bashrc

echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> /etc/bashrc

echo 'eval "$(pyenv init -)"' >> /etc/bashrc

exec $SHELL -l

C.安装Python 2.7.10

pyenv install 2.7.10 -v

#############################################

假如上面的执行失败,可以换个思路,就是手工安装,到$PYENV_ROOT/versions/2.7.10

wget https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tgz

tar zxf Python-2.7.10.tgz;

cd Python-2.7.10;

./configure --prefix=$PYENV_ROOT/versions/2.7.10;make && make install && make clean

----------------------------------------------------------------------------

刷新数据库：

pyenv rehash

到现在系统中已经有两套不同版本的python，但是系统默认的还是python 2.7.5版本的，现在进行切换：

pyenv global 2.7.10

[root@p168 ~]# python

Python 2.7.10 (default, Dec 4 2015, 16:59:08)

[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)] on linux2

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

>>>

现在系统默认的python版本就是2.7.10了，yum可以正常使用，因为yum注释是 “/usr/bin/python”,我们自己写的python用的是 “/usr/bin/env python”,这个对于的就是系统环境中python 2.7.10 ！