1. Let's Learn Python and Pygame
Aj. Andrew Davison, CoE, PSU Hat Yai Campus
3. Modules
Using modules to give Python even more POWER
Look at built-in modules: random, math, turtle, winsound
Start turtle graphics.
Look at installing easygui using pip

2. 1. What is a Module?
A module is a program that adds extra features to Python
e.g. for 3D graphics, for writing games
There are lots of modules that come with Python
called built-in or standard modules
It is easy to add more
called third-party modules

3. Python's Design A small … plus lots language … of modules turtle math
winsound

4. 2. Using the random Module

5. Module Documentation
click on "modules"

7. Information on random
Look under 'r' in the Python Module Index

8. 3. The math Module import math or from math import * Function name
Description
abs(value)
absolute value
ceil(value)
rounds up
cos(value)
cosine, in radians
degrees(value)
convert radians to degrees
floor(value)
rounds down
log(value, base)
logarithm in any base
log10(value)
logarithm, base 10
max(value1, value2, ...)
larger of two (or more) values
min(value1, value2, ...)
smaller of two (or more) values
radians(value)
convert degrees to radians
round(value)
nearest whole number
sin(value)
sine, in radians
sqrt(value)
square root
tan(value)
tangent
Constant
Description e pi
import math or
from math import *

10. Information on math
Look under 'm' in the Python Module Index

11. 4. The turtle Module
The turtle moves about in a drawing window with a pen for drawing lines.
The turtle can be told to turn a number of degrees, move a distance, move to a new position, and change its pen's color and line width
If the turtle’s pen is down, it draws a line; otherwise, it moves without drawing

12. The Turtle Drawing Window
90°
The turtle is an icon
Initial position: (0, 0)
Initial direction: East (0°)
Color: black
Line width: 1 pixel
Pen: down (ready to draw)
x-axis
(0,0)
180° 0°
270°
y-axis

13. Create a Turtle Tell Python to add the Turtle command to its
built-in commands
>>> from turtle import Turtle
>>> sleepy = Turtle()

14. Move a Distance Move 50 pixels in the current direction.
>>> from turtle import Turtle
>>> sleepy = Turtle()
>>> sleepy.forward(50)
Move 50 pixels in the current direction.
There's also a backward() command.

15. Turning Left or Right
A turtle can turn left or right by a number of degrees
e.g. sleepy.left(45)
This angle is offset from the turtle's current forward direction.
left(45)
forward
left(45)
forward

16. Tell the turtle to draw a square
Square.py

17. Draw a House
House.py

18. A Blue Equilateral Triangle
Triangle.py

19. A Faster Turtle
Square.py

21. Filling the Shape with Color
Square.py

22. Drawing (Bits of) Circles
Circles.py

23. Writing Text
HelloWorld.py

24. goto(x,y) The usual turtle window has -200 ≤ x ≤ 200 and
Also used in setpos(x,y)

25. Information on turtle
Look under 't' in the Python Module Index

26. 6. Getting More Modules https://pypi.python.org/pypi
I'll search for "GUI"

27. lots more off the bottom of this picture

28. the "easygui" looks good; click on it for
lots more details

29. Info on easygui The easygui webpage: An easygui tutorial:
you can also download easygui from there, but pip is easier
An easygui tutorial:

30. 7. Installing a PyPI Module
Use the pip program that comes as part of the Python download.
Use it from the Command window.

31. Use pip to Search PyPI

32. Use pip to Install easygui

33. More pip commands pip help pip list
gives help on using pip
pip list
lists the extra (thitd-party) modules that you have added to Python
pip install <downloaded file>
installs a module that you've downloaded yourself

34. 9. Use easygui in Python

35. Dialog Box with Buttons
IceButtons.py

36. Text Input
IceEnter.py

37. Response