Game Development Reference
In-Depth Information
17 - Graphics and Animation
Figure 17-2: The "Hello World" program.
Importing the Pygame Module
Let's go over each of these lines of code and find out what they do.
1. import pygame, sys
2. from pygame.locals import *
First we need to import the
pygame
module so we can call the functions in the Pygame
software library. You can import several modules on the same line by delimiting the
module names with commas. Line 1 imports both the
pygame
and
sys
modules.
The second line imports the
pygame.locals
module. This module contains many
constant variables that we will use with Pygame such as
QUIT
or
K_ESCAPE
(which we
will explain later). However, using the form
from moduleName import *
we can
import the
pygame.locals
module but not have to type
pygame.locals
in front of
each time we use the module's functions and variables in our program. The
*
symbol
means we should import everything inside the module.
The
pygame.locals
module contains some constant variables we will use in this
program . If you have
from sys import *
instead of
import sys
in your program,
