Calling a module function in another class..........

[Jørgen Cederberg]

perl lover wrote:
> hi,
>    How to call a member function of one module from
> another class function? i have created a module and
> defined a function in that. I called this function
> from another class. But i got some errror message. My
> program is given below.

Hi Perl Lover (might I suggest a name change? :) )

first of, your indentation is way off. Perhaps it is your mail program, 
but i looks all screwed up. Second, the canvas widget doesn't have a 
'event' variable. You can merely pass the event variable and print the x 
and y coordinates. Below are the corrected programs:

##############################################
#               classtest.py
##############################################
def print_mousepos(event):
     print event.x,event.y

#############################################
# mainprg.py
#############################################
import classtest
from Tkinter import *
class App:
     def __init__(self,parent):
         self.myparent = parent
         self.canvas = Canvas(parent,width="1000m",height="1000m")
         self.canvas.create_rectangle(100,100,200,200,fill='blue')
         self.canvas.bind('<B1-ButtonRelease>',self.ZoomIn)
         self.canvas.bind('<Motion>',self.mousemove)
         self.canvas.pack()

     def ZoomIn(self,event):
         self.canvas.scale(ALL,2,2,1.5,1.5)

     def mousemove(self,event):
         classtest.print_mousepos(event)

root = Tk()
myapp = App(root)
root.mainloop()


HTH

Jorgen Cederberg