In order to be immediately operative, we start to see the simplest of the programs we can write: that is, a simple sequence of commands.
The Python prompt will be of the type:
Python 3.3.2 (v3.3.2: d047928ae3f6, May 16 2013, 00:06:53) [MSC v.1600 64 bit (AM
D64)] on win32
Type “help”, “copyright”, “credits” or “license” for more information.
So let’s start working with the Python prompt, writing the individual commands directly, then print the programmer’s greeting on the screen:
>>> print (‘Hello world!’)
How you can verify the print command does nothing but ask Python to show us on the video the string contained in the brackets. In our case it will write the sequence of characters ‘Hello world’.
This sequence of characters is defined in the jargon of the character string programmers or simply string.