python之安装

1.python控制软件pyenv

依赖软件：git

[root@localhost ~]# curl https://raw.github.com/yyuu/pyenv-installer/master/bin/pyenv-installer| bash
...
Seems you still have not added 'pyenv' to the load path:

export PYENV_ROOT="${HOME}/.pyenv"

if [ -d "${PYENV_ROOT}" ]; then
  export PATH="${PYENV_ROOT}/bin:${PATH}"
  eval "$(pyenv init -)"
fi
[root@localhost ~]# vim /etc/profile.d/pyenv.sh

export PYENV_ROOT="${HOME}/.pyenv"

if [ -d "${PYENV_ROOT}" ]; then
  export PATH="${PYENV_ROOT}/bin:${PATH}"
  eval "$(pyenv init -)"
fi
[root@localhost ~]# . /etc/profile.d/pyenv.sh 

2.安装python

例如安装2.7.5版本

[root@localhost ~]# pyenv install 2.7.5

3.利用pyenv进行版本切换

pyenv versions

pyenv local|glocal 2.7.5

pyenv versions

python -V

此处local和glocal的区别在于local仅对当前目录及子目录起作用，glocal是全局生效

4.安装python的增强版本ipython

安装ipython，需要安装python-pip（python的包管理工具，如果是通过pyenv安装的python，则默认安装pip，否则不会安装）

pip install ipython

来自为知笔记(Wiz)