Ubuntu 14.04 LTS and Python 3.4.2

Question

Is it possible update default Python 3.4 to 3.4.2? How?

Answer 1

1. Download the 3.4.2 source files from here
2. Extract it to a temporary directory within your Downloads folder
3. Open a terminal session.
4. Navigate to the folder with cd ~/Downloads/Python-3.4.2

5. As per the Python documentation, run the following commands from the terminal:

   ./configure
   make
   make test
   sudo make install
   

This will upgrade your existing Python-3.4 installation to Python-3.4.2 (accessible as python3)

Answer 2

You can also use pyenv as your python manager. pyenv

It will allow you to install any version of python, pypy, python3, stackless etc.

it uses shims and also has a nice plugin for virtualenv which makes it a very easy option to use pyenv-virtualenv

Very simple installation.

curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash

find out which versions are available to install

$ pyenv install --list

install python 3.4.2

sayth@sayth-TravelMate-5740G:~/scripts$ pyenv install 3.4.2
Downloading Python-3.4.2.tgz...
-> https://www.python.org/ftp/python/3.4.2/Python-3.4.2.tgz 
Installing Python-3.4.2...

Answer 3

trusty-updates release channel of Ubuntu 14.04 LTS provides Python 3.4.3 (if you want simply newer version of Python than 3.4.0, not exactly 3.4.2).

You can enable trusty-updates in Software & Updates settings (they should be enabled by default):