Touble with Tkinter menus (code included)

[Eric Brunel]

James Ash wrote:
> I'm writing a very simple and small Ptyhon/Tkinter application and I'm
> having trouble getting the menus to appear correctly. Rather than a name
> appearing on the menu bar, I see "()" instead.  Clicking on these "()" does
> nothing (other than changing the appearance of them to indicated they've
> been pressed).
> 
> I'm using Python 2.2.3 on Win2K, using a release downloaded from one
> of the Cygwin mirrors.
> 
> This is most likely a simple mistake on my part, but I can't find it. I'm new
> to Python and Tkinter both.
> 
> Any help appreciated!
> Jim
> 
> 
> #! /usr/bin/env python
> 
> # $Id$
> #
> # File: timecard.py
> 
> import string
> 
> 
> from Tkinter import *
> 
> 
> 
> class App:
> 
>     def callback(self):
> 	print "called the callback!"
> 
>     def __init__(self, master):
> 	frame=Frame(master)
> 	master.title("Timecard, Implemented in Cygwin supplied Python!")
> 	master.maxsize(1000, 400)
> 	frame.pack()
> 
> 	self.b = Button(frame, text="Clock In", width=8, command=self.callback)
> 	self.b.pack(side=LEFT, padx=2, pady=2)
> 
> 	self.b = Button(frame, text="Clock Out", width=8, command=self.callback)
> 	self.b.pack(side=LEFT, padx=2, pady=2)
> 
> 	self.b = Button(frame, text="Report", width=8, command=self.callback)
> 	self.b.pack(side=LEFT, padx=2, pady=2)
> 
> 	self.menubar = Menu(master)
> 
> 	self.filemenu=Menu(self.menubar)
> 	self.filemenu.add_command(master, label="Exit", command=self.callback)
> 	self.menubar.add_cascade(master, label="File", menu=self.filemenu)

No need for master in the two previous calls: doing just

self.filemenu.add_command(label="Exit", command=self.callback)
self.menubar.add_cascade(label="File", menu=self.filemenu)

solves the problem.

Please refer to http://www.pythonware.com/library/tkinter/introduction/index.htm 
for further details.

> 
> 	master.config(menu=self.menubar)
> 
> root = Tk()
> 
> app = App(root)
> root.mainloop()
> 

HTH
-- 
- Eric Brunel <eric dot brunel at pragmadev dot com> -
PragmaDev : Real Time Software Development Tools - http://www.pragmadev.com