Format for Python/Tkinter program

Russell E. Owen no at spam.invalid
Sat Mar 22 00:59:06 CET 2003


I didn't read every word but basically it looks good to me.

I like the fact that you aren't doing "from Tkinter import *" and that 
you are using SimpleCallback (aka currying functions) instead of using 
lambdas.

Regarding packaging: I tend to have a separate module or package for 
each widget, unless the widget is really simple. If a window or widget 
is sufficiently complex, I create a separate file for each major 
component, so I can easily test and work on each component separately. 
For instance in a recent control interface for a complicated instrument 
named DIS I created:
DIS (folder)
  __init__.py  contains "from DISWdg import *"
  DISWdg.py  the main widget that uses the other files in this package
  Model.py a set of Tk variable-like things that contains current info 
about DIS
  ConfigInput.py the main set of input controls for setting the 
configuration of DIS
  ConfigWdg.py: combines ConfigInput.py and the main command buttons
  Status.py a panel showing the status

I also make each widget into a subclass of Frame (or some other obvious 
Tkinter class), so I can directly grid or pack it. For instance:
(file MyWdg.py):
import TkInter
class MyWdg(Tkinter.Frame):
  def __init__(self, master, myWdg inputs, **kargs):
    Tkinter.Frame.__init__(self, master, **kargs)
    ...do my own initialization

(another file):
import Tkinter
import MyWdg
root = Tk()
aWdg = MyWdg.MyWdg(root)
aWdg.pack()
# or get fancier and pack or grid several widgets together...

I hope you find PMW reliable. When I tried it on a Mac a year or two ago 
I found some bugs and gave up on it. A pity, because it does a lot of 
nice things.

In article <8761b8c9.0303211200.66811084 at posting.google.com>,
 vicki at stanfield.net (Vandl) wrote:

>I am new to Python/Tkinter, having programmed quite a bit in C/Motif.
>I am trying to get a feel for the appropriate format for my new
>programs....




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