Computer locks up when running valid stand alone Tkinter file.

[jim-on-linux]

Thanks for responding,

For those who care.
The solution to the problem was;

First, I did not give a parent to the Yview 
scrollbar.

Next, I used the pack geometry for this class and 
everything else is grid geometry.

When run stand alone it ran fine because the Yview 
scrollbar attached itself to the default parent, 
but when run from another module, it locked up.

The difficulty is really in the fact that 
scrollbar Yview without a parent tried to attach 
itself to the root Tk, already built and running 
with grid geometry.

Pack and grid in the same Frame don't get along 
(computer lockup).

Give Yview a parent, problem solved. 
Changed pack to grid anyway.


jim-on-linux

http://www.inqvista.com




On Wednesday 25 October 2006 23:05, you wrote:
> > But, when I call it from another module it
> > locks
>
> methinks this "other module" has the answer.
>
> jim-on-linux wrote:
> > py help,
> >
> > The file below will run as a stand alone
> > file. It works fine as it is.
> >
> > But, when I call it from another module it
> > locks my computer, The off switch is the only
> > salvation.
> >
> > This module when run as a stand alone, it
> > will open a jpeg image and add a vertical and
> > horizontal scrollbar to the canvass. That's
> > all it does.
> >
> > Replace the img9.jpg file with one of your
> > own, put the image in the current working
> > dir., and run.
> >
> > If you think you can help, I would appreciate
> > it.
> >
> >
> > jim-on-linux
> >
> >
> >
> >
> >
> > ############################################
> >
> > #!/usr/bin/env python
> >
> > """
> > #############################################
> > import Tkinter as Tk
> >
> >     Do not do
> >     ( from Tkinter import * )
> >     because of  name space conflict with
> > Image.open
> >
> > #############################################
> >#
> >
> > ####    below imports  Image and ImageTk are
> > from ####    Imaging-1.1.5, PIL  in Python
> >
> > """
> >
> >
> > import Image
> > import  ImageTk
> > import Tkinter as Tk
> > import os
> >
> > vpath = os.getcwd()+os.sep+'img9.jpg'
> >
> >
> >
> > class Kshow_0 :
> >
> >     def __init__(self ) :
> >         self.Fimgshow0()
> >
> >     def Fimgshow0(self ) :
> >         window = Tk.Tk()    # used for stamd
> > alone
> >
> >        #  window = Tk.Toplevel()
> >          # Above Toplevel call used when
> > running # from another file
> >
> >
> >
> >         window.title(' Image Location '+vpath
> > ) window.protocol('WM_DELETE_WINDOW',
> > window.destroy)
> >
> >         vcanvas = Tk.Canvas(window, width =
> > 375, height=375, borderwidth = 1, bg=
> > 'white')
> >
> >         sbarY=Tk.Scrollbar()
> >         sbarX = Tk.Scrollbar(
> > orient='horizontal') sbarY.config(command=
> > vcanvas.yview) sbarX.config(command=
> > vcanvas.xview)
> >
> >        
> > vcanvas.config(yscrollcommand=sbarY.set)
> > vcanvas.config(xscrollcommand=sbarX.set)
> >
> >         sbarY.pack(side='right', fill='y')
> >         sbarX.pack(side='bottom', fill='x')
> >         vcanvas.pack(expand='yes', 
> > fill='both')
> >
> >         im= Image.open( vpath)
> >         tkim = ImageTk.PhotoImage(im)
> >
> >         imgW = tkim.width()
> >         print imgW, '## imgW, jpg 58\n'
> >
> >         imgH = tkim.height()
> >         print imgH, '## imgH, jpg 61\n'
> >
> >         # Draw the image on the canvas
> >         vcanvas.create_image(0, 0, 
> > image=tkim, anchor = 'nw'  )
> >
> >         vcanvas.config(scrollregion= (0, 0,
> > imgW, imgH)) window.mainloop ()
> >
> >
> > if __name__ == '__main__' :
> >
> >     Kshow_0()