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I'm using the following tutorial to learn Python: How to think like a computer scientist

I'm running the following code and I get an error:

from gasp import *


begin_graphics(800, 600, title="Catch", background=color.yellow)
set_speed(120)

ball_x = 10
ball_y = 300
ball = Circle((ball_x, ball_y), 10, filled=True)
dx = 4
dy = 1

while ball_x < 810:
    ball_x += dx
    ball_y += dy
    move_to(ball, (ball_x, ball_y))
    update_when('next_tick')

end_graphics()

I get the following error when Attempting to run the code:

Traceback (most recent call last):
File "C:/Documents and Settings/zodkoyj/Desktop/Python/pitch.py", line 6, in <module>
set_speed(120)
NameError: name 'set_speed' is not defined

From everything I can find it should be part of the GASP module, but it doesn't appear to be. In the example code located HERE all I need to import is GASP. Any suggestions on where I can find the set_speed definition? Any help would be appreciated.

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Last Post by pyromjm
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To find all functions/methods in a module like gasp use:

import gasp
print "List the functions within module gasp:"
for f in dir(gasp):
    print f

Look at the output, maybe it's just a minor spelling difference.

Info:
GASP (Graphics API for Students of Python) is a library built on pygame that enables absolute beginners to write 1980's style arcade games as an introduction to python

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It doesn't appear to be in the list

Arc
Box
Circle
Image
Line
Oval
Plot
Point
Polygon
Screen
Shape
Sound
Text
__builtins__
__doc__
__file__
__name__
__path__
api
backend
begin_graphics
clear_screen
color
create_sound
end_graphics
key_pressed
keys_pressed
make_it_a_point
math
mouse_buttons
mouse_position
move_by
move_to
pause
play_sound
random
random_between
random_choice
read_number
read_string
read_yesorno
remove_from_screen
rotate_by
rotate_to
screen_shot
sleep
stop_sound

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There are other functions missing too, like update_when(). Where did you get the code sample from? Maybe you have an outdated version of gasp.

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There are other functions missing too, like update_when(). Where did you get the code sample from? Maybe you have an outdated version of gasp.

I downloaded the source from this site: http://dev.laptop.org/pub/gasp/downloads/

They say the installer for windows is out of date so I should download the source.

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Interested in gasp?
See the post at:
http://www.daniweb.com/forums/post606877-137.html

Also take a look at the post from vegaseat on pygame just above that one.

Note: The missing function set_speed() sounds like something that would use pygame's clock() function. I heard the newer vesion 0.2.0 of gasp has incorporated clock().

Awesome. Thank you! the 0.2.0 beta works. I appreciate the help.

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Awesome. Thank you! the 0.2.0 beta works. I appreciate the help.

I am glad it works now. Where did you download the new beta version from?

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Im following that same tutorial. If i use the stable version of gasp 0.1.1, i get those same errors of course( the missing elements of the module)
If i use the beta, 0.2.0, it of course includes the missing things. begin_graphics() works, and whatever i specify is drawn to the screen, but once you try to do anything like capture an input or even end_graphics(), python locks up. does this happen for anyone else?

ps. you can download any of the versions at
https://launchpad.net/gasp-code/+download

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