I want to install python 2.7.2.tgz on Ubuntu, (You may downloaded from http://python.org/download/). In this post I want to say how to install python 2.7.2 on ubuntu by terminal.

Steps:
First open terminal install some dependencies:  
A) sudo apt-get install build-essential
B) sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev 
libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev
 
Then download using the following command: 
C) cd ~/Downloads/
D) wget http://python.org/ftp/python/2.7.5/Python-2.7.5.tgz
 
Extract and go to the dirctory: 
E) tar -xvf Python-2.7.5.tgz
F) cd Python-2.7.5 
 
Now, install using the command you just tried:
G) ./configure
H) make
I) sudo make altinstall 

Now you can run python code by terminal by the command:
J) Press CRT+ALT+t to open terminal
K) python <filename>.py