How to change Tkinter Label widget text without global variable in a class?

[Thomas Hoffend]

Never mind, I figured it out as soon as I graduated to list boxes.  Silly
me, here is the new code snippet:

....
      # Put some text under the button to show the path
          self.PathStr = fullpath
          self.label1 = Label(frame, text=self.PathStr)
          self.label1.pack()

     # The class will store the full path:
     PathStr = fullpath

     # Here is a function to go up one directory - eventually (right now it
just manipulates the path name):
     def go_up_one(self):
         print "Going Up!"
          self.PathStr = (os.path.dirname(self.PathStr))
          print self.PathStr
          self.label1['text']=self.PathStr
...

"Thomas Hoffend" <trhoffend at mediaone.net> wrote in message
news:ZtB57.5672$X6.251588 at typhoon.mn.mediaone.net...
>
> I am new to Python and working on learning Tkinter.
>
> I ordered some of the books recommended on the Python web site, and also
> have been going
> through the online tutorial on Tkinter and reading old newgroup articles.
> There is one point which
> I found that sort of bugs me, and that is I can't figure out how to change
a
> Label widget text
> without using some sort of global variable.  It seems that declaring a
> global variable inside a class
> is not the best thing to do, especially if there is the possibility that
you
> will create multiple instances of
> the class (unless maybe I don't understand the scope of the global
> variable - is it
> global just inside the class?).  So is there some way to change the label
> text without a global
> variable?  For example:
>
> #
> # Script to pop up the current directory name in a window and go up one
> directory;
> #     I hope to turn this into a directory selector.
> #
>
> from Tkinter import *
> import os
> import os.path
>
> path = os.path.abspath('.')
> fullpath = os.path.normpath(path)
>
> class mywidget:
>     #
>     def __init__(self, master):
>
>     frame = Frame(master)
>     frame.pack()
>
>     # Make a button to go up one directory (well, at least manipulate a
> string with the path name for now):
>     self.upbutton = Button(frame, text="Up", command=self.go_up_one)
>     self.upbutton.pack(side=TOP)
>
>     # Put some text under the button to show the path:
>     global vCurrentPath
>     vCurrentPath = StringVar()
>     label1 = Label(frame, textvariable=vCurrentPath)
>     label1.pack()
>     vCurrentPath.set(self.PathStr)
>
>     # The class will store the full path:
>     PathStr = fullpath
>
>     # Here is a function to go up one directory - eventually (right now it
> just manipulates the path name):
>     def go_up_one(self):
>         print "Going Up!"
>         self.PathStr = (os.path.dirname(self.PathStr))
>         print self.PathStr
>         vCurrentPath.set(self.PathStr)
>
> root = Tk()
> app = mywidget(root)
> root.mainloop()
>
>