Hardware Reference
In-Depth Information
2.
Press Return. You should see Python run your irst line of code and display the greet-
ing shown in Figure 2-2.
Figure 2-2:
Python says
“Hello World”.
Many programmers write a “Hello World” program whenever they learn a new language. It is
about the simplest program and is a good way to check that it is possible to write some code
and then run it. It dates back to the irst tutorials of how to program in the 1970s. There's even
an equivalent in hardware to “Hello World” that you'll see in Chapter 9, “Test Your Reactions.
If you got the result shown in Figure 2-2, then welcome to the club - you're now a computer
programmer! If not, go back and make sure that you typed the code
exactly
as shown in the
example (sometimes even the number of spaces matter in Python), because computers need
to be told precisely what to do. his strict rule means that unlike English, a statement can
only be interpreted with one meaning.
