Start the intepreter on the command line by entering python at the
shell prompt. Now enter print 'Hello World'
followed by the
Enter key. You should see the words
Hello World
as output.
For Windows users, you can run the interpreter in the command line if you have set
the PATH
variable appropriately. Alternatively, you can use the
IDLE program. IDLE is short for Integrated DeveLopment Environment.
Click on -> ->
-> .
Linux users can use IDLE too.
Note that the <<< signs are the prompt for entering Python statements.
Example 3.1. Using the python interpreter prompt
$ python Python 2.3.4 (#1, Oct 26 2004, 16:42:40) [GCC 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> print 'hello world' hello world >>>
Notice that Python gives you the output of the line immediately! What you just entered
is a single Python statement. We use print
to (unsurprisingly) print any value that you supply to it. Here, we are supplying the
text Hello World
and this is promptly printed to the screen.
To exit the prompt, press Ctrl-d if you are using IDLE or are using a Linux/BSD shell. In case of the Windows command prompt, press Ctrl-z followed by Enter.