----- Message from [EMAIL PROTECTED] ---------
Date: Tue, 24 Jun 2008 18:27:59 -0700
From: Ben <[EMAIL PROTECTED]>
Hi,
I'm trying to learn Python in Windows XP. I've been going through the
Python version of Allen Downey's open source textbook. I frequently
find that the instructions he gives don't work for me when I try to
run them in IDLE. For example, in Ch. 4 he says you should load up
GASP (http://openbookproject.net//thinkCSpy/ch04.xhtml#auto10) and
play around with it. Here's what happens when I try what he says to
do:
IDLE 1.2.2
from gasp import *
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
from gasp import *
ImportError: No module named gasp
Hi Ben,
gasp isn't part of python; it is a module specific to the book you are
reading. There should be a link somewhere on the book's site from
which you can dowload it.
When I try to put all the information in a module, save it, and run
it, I get "there's an error in your program: invalid syntax", and it
highlights instance. Below is what my module looks like.
from gasp import *
begin_graphics()
Circle((200, 200), 60)
Circle instance at (200, 200) with radius 60
Line((100, 400), (580, 200))
Line instance from (100, 400) to (590, 250)
Box((400, 350), 120, 100)
Box instance at (400, 350) with width 120 and height 100
end_graphics()
If you look at the page again, you will see that the relevant text looks like:
from gasp import *
begin_graphics()
Circle((200, 200), 60)
Circle instance at (200, 200) with radius 60
Line((100, 400), (580, 200))
Line instance from (100, 400) to (590, 250)
Box((400, 350), 120, 100)
Box instance at (400, 350) with width 120 and height 100
end_graphics()
The `>>>' are the prompts for the interactive interpreter[*] and the
lines without them are the results of running the commands typed at
the prompts. So, if you want to put it into a module, you will have to
include only the `>>>' lines (don't include the `>>>'s themselves,
though.
[*] Do you know what I mean by `interactive interpreter'?
Trying to run that will take you back to your first problem. So, see
if you can find a download link for the module on the book's site, and
give it another go. Report back if still stymied.
Best,
Brian vdB
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