Creating a Text widget in a Dialog (Tkinter)

[Aki Niimura]

Hi,

I'm trying to create a simple dialog which has a Text with
scrollbars(H and V)
in a dialog. (I'm inherting Tkinter Dialog class)

I'm using a grid to attach two scrollbars to the Text widget.
I don't know why but the text widget is disappeared (not mapped) while
two
scrollbars are displayed correctly. 

If I use pack instead of grid then all of them appear (but Horizontal 
scrollbar are not placed correctly). I used the same code in the main
window
and it worked fine.

Is there anything I'm overlooking?

Any insights are highly appreciated.

Thanks,
Aki-

###     
###     Class HelpDlg
###         
                
class HelpDlg(Dialog):
    def __init__(self, parent, excerpt, title = None):
        self.lines = excerpt
        Dialog.__init__(self, parent, title)
 
    def body(self, master):
        self.usage = Text(master, height=26, width=80)
        self.grid = Frame(master)
        self.yscroll = Scrollbar(master, command=self.usage.yview)
        self.xscroll = Scrollbar(master, orient=HORIZONTAL,
command=self.usage.xview)
        self.usage.configure(xscrollcommand=self.xscroll.set,
yscrollcommand=self.yscroll.set)
        
        for line in self.lines:
            self.usage.insert(END, line+'\n')
        
        self.grid.pack(expand=YES, fill=BOTH)
        self.usage.grid(in_=self.grid, row=0, column=0)
        self.yscroll.grid(in_=self.grid, row=0, column=1,
sticky='news')
        self.xscroll.grid(in_=self.grid, row=1, column=0,
sticky='news')