[Tutor] Various Topics from IDLE to ImageDraw Options

Wayne Watson sierra_mtnview at sbcglobal.net
Wed Feb 13 15:26:42 CET 2008

I'm just getting started in Python but have begun with a challenging 
project. It's a 2000+ line program that provides works with a GUI for 
essentially a video device. As such, it displays dialogs, still images, 
push buttons, menus, and the like. It uses OOP. Ten years ago I was into 
OOP with C++ and Java for several years. It's been awhile. I'm 
interested in modifying the GUI interface.

I've begun with IDLE and have a few questions about it. Although, I've 
been able to set breakpoints, I see no way to clear then all. Is there a 
way, and is there a way to tell what line # I'm on when examining source 
text? I'm not quite sure why, but when I start the Python shell via 
IDLE, an Open leads me to the Python 2.4.4 folder. This is not where my 
programs are. Is there some way to start in a directory closer where I 
want to be?

Although I have a popular book on Python (Lucas?), I just found a short 
intro to Python OOP on the web that looks like a good quick start into 
the subject. <http://www.voidspace.org.uk/python/articles/OOP.shtml> 
Maybe there are others.

I just figured out how to draw a line on one of the still images the 
program. I'm not quite sure how I did that, but it did work. Eventually, 
the line effort will allow me to draw a compass over the image. In any 
case, for that, I started getting acquainted with the ImageDraw class 
(Object). <http://effbot.org/imagingbook/imagedraw.htm>  My question 
here is are there more detailed explanations somewhere for the options? 
For example, I found a rather helpful document at New Mexico Tech, which 
goes into considerable detail on options for Tkinter. See page 4 of 
<http://infohost.nmt.edu/tcc/help/pubs/tkinter.pdf> by John Shipman.

           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

             (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
              Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 feet
              "I know that this defies the law of gravity, but 
               you see, I never studied law." -- Bugs Bunny
                    Web Page: <www.speckledwithstars.net/>

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