Howto- Install Python 3.x in Ubuntu, Debian, Fedora & Centos

erlang and dependencies

Question: How to install Python 3.x in Ubuntu, Fedora &  Centos?

Answer:

1- To be able to compile Python Source, you will need few packages. Open terminal and execute this command

– For Centos/Fedora

 yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel

– For Ubuntu/ LinuxMint/Debian

sudo apt-get install build-essential libncursesw5-dev libreadline5-dev libssl-dev libgdbm-dev libc6-dev libsqlite3-dev tk-dev

2- Download latest release of Python

Fetch and extract source. Please refer to http://www.python.org/download/releases to ensure the latest source is used.

wget http://www.python.org/ftp/python/3.x/Python-3.x.tar.bz2

3- Extract and cd the extracted directory

tar -xjf Python-3.xtar.bz2 cd Python-3.x

4- Configure the build with a prefix (install dir) of /opt/python3, compile, and install.

./configure --prefix=/opt/python3 
make 
sudo make install

Python 3 will now be installed to /opt/python3.

$ /opt/python3/bin/python3 -V Python 3.x

5- Ensure your python 3 scripts and applications query the correct interpreter.

#!/opt/python3/bin/python3

That is all.