Learn How To Install Python 2.7 or Python 3.6 and Setup Virtual Environment on CentOS 6
Table of Contents
- Install Prerequisites
- Build Python 2.7 From Source
- Build Python 3.6 From Source
- Install Pip, Setuptools, and Virtualenv for Python 2.7
- Conclusion
This tutorial will help you install Python 2.7 and Python 3.6, as well as setup Virtualenv on CentOS 6.
Virtualenv is a tool to create isolated Python environments which can keep the dependencies required by different projects in separate folders.
Install Prerequisites
Update the operating system to the latest kernel.
[root@itweb.services ~]# yum update
<some_output>
Is this ok [y/N]: y
Install development tools.
[root@itweb.services ~]# yum groupinstall -y 'development tools'
Install required packages.
[root@itweb.services ~]# yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
Build Python 2.7 From Source
Download the latest source code and extract it.
[root@itweb.services opt]# cd /opt/ & wget https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tgz && tar xvf Python-2.7.13.tgz
Compile Python source code.
[root@itweb.services opt]# cd Python-2.7.13
[root@itweb.services Python-2.7.13]# ./configure --prefix=/usr/local --enable-unicode=ucs4 --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
Create and install Python binaries.
[root@itweb.services Python-2.7.13]# make && make altinstall
Add Python to search PATH
.
[root@itweb.services Python-2.7.13]# export PATH="/usr/local/bin:$PATH"
Build Python 3.6 From Source
Download the latest source code and extract it.
[root@itweb.services opt]# cd /opt/ && wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tgz && tar xvf Python-3.6.2.tgz
Compile Python source code.
[root@itweb.services opt]# cd Python-3.6.2
[root@itweb.services Python-3.6.2]# ./configure --prefix=/usr/local --enable-unicode=ucs4 --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
Create and install Python binaries.
[root@itweb.services Python-3.6.2]# make && make altinstall
Add Python to search PATH
.
[root@itweb.services Python-3.6.2]# export PATH="/usr/local/bin:$PATH"
Install Pip, Setuptools, and Virtualenv for Python 2.7
Python-3.6 has Pip built-in, which can be accessed using the command pip3.4
.
Download the setuptools and Pip installation script for Python-2.7.
[root@itweb.services]# cd /tmp/
[root@itweb.services tmp]# wget https://bootstrap.pypa.io/get-pip.py
[root@itweb.services tmp]# python2.7 get-pip.py --prefix=/usr/local/
Install Virtualenv.
[root@itweb.services tmp]# pip2.7 install virtualenv
Conclusion
You can now use the commands python2.7
and python3.6
to run your scripts. If you need to install any new packages, you can do that with pip2.7 install package_name
and pip3.6 install package_name
.
Need help?
Do you need help setting up this on your own service?
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