CENTOS7 deploying pyenv To install Python multiple versions

in the CentOS7 through pyenv installation Python3 and virtualenv

centos default installation python version is 2.7 centos installation on the server Span style= "FONT-FAMILY:CALIBRI;" >python3

because Many of the tools in the CentOS system are dependent on the Python2.7.5 of the system , so in order not to affect the use of Python2.7.5 , use Pyenv for environmental isolation. virtualenv is used to create a separate python environment for each Python app .

Step 1. Update System

$ sudo yum-y update

Step 2. Install dependent environments

$ sudo yum install-y gcc git openssl-devel zlib-devel readline-devel sqlite-devel bzip2-devel patch

Step 3. installation pyenv

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

Step 4. Configuring environment Variables

$ Echo ' Export path= ' $HOME/.pyenv/bin: $PATH "' >>. BASHRC

$ Echo ' eval ' $ (pyenv init-) ' >>. BASHRC

$ source. BASHRC

The following results have been successfully installed.

$ pyenv Version

System (set By/home/logan/.pyenv/version)

Step 4. installation Python3

You can use pyenv install-lto view supported versions of the installation

$ pyenv Install--list

Available Versions:

2.1.3

2.2.3

... ..

3.5.1

3.5.2

3.6.0b3

3.6-dev

Installing 3.5.2

$ pyenv Install 3.5.2

Version switching

$ pyenv Global 3.5.2

$ pyenv Rehash

View Python version

$ python –version

Step 5. installation virtualenv

$ pip Install virtualenv

Create a virtual environment

$ virtualenv ENV

Start the virtual environment

$ source Env/bin/active

Exit the Environment

Deactivate

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CENTOS7 deploying pyenv To install Python multiple versions