confusion between global names and instantiated object variable names

[Piet van Oostrum]

>>>>> "wanwan" <ericwan78 at yahoo.com> (w) wrote:

>w> I'm trying to make a GUI, but for some of the instantiated object
>w> variable names, the interpreter is looking at them as global names.
>w> Here is an example of what I did:


>w> class mygui:


>w> 	def __init__(self, root):

>w> 		self.menubar = Menu(root)

>w> 		# Game Menu
>w> 		self.menu1 = Menu(self.menubar, tearoff=0)
>w> 		self.menu1.add_command(label="Open File", command=donothing)
>w> 		self.menu1.add_separator()
>w> 		self.menu1.add_command(label="Exit", command=root.quit)
>w> 		self.menubar.add_cascade(label="File", menu=self.menu1)

>w>                 # ignoring the rest of the program  ...


>w> when I run my example, an error shows:
>w> "NameError: global name'menubar' is not defined"

If it talks about global name, it can't be self.menubar or
anything.menubar. So there must be a soloist menubar reference somewhere.
Doesn't it tell you the line number?
-- 
Piet van Oostrum <piet at cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4]
Private email: piet at vanoostrum.org