First Steps

Mny operating systems have Python 3 installed. If you’re lucky enough to have one, you should be able to execute Python 3 with python3 command in the command prompt / terminal window. Text similar to the following text should be displayed on your terminal.

Python 3.5.2+ (default, Sep 22 2016, 12:18:14)
[GCC 6.2.0 20160927] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

The >>> is a prompt, where Python programming statements can be entered interactively. The first programming construct we use is the exit which exits the interpreter. Type in exit() and press the enter key:

>>> exit()

You will see that the Python interpreter exits and you have returned back to the command prompt.