TKinter, buttonwidget response problem(1) and all btns the same size(2)!

[skanemupp at yahoo.se]

1st question:

when i run this program 1 will be printed into the interpreter when i
run it BUT without me clicking the actual button.
when i then click the button "1", nothing happens.

obv i dont want any output when i dont push the button but i want it
when i do.

what am i doing wrong here?



2nd question:

i want all the buttons to have the same size. i thought i should use
row/columnspan but i dont get that to work.
how should i do?



[code]
#! /usr/bin/env python
from Tkinter import *
import tkMessageBox

class GUIFramework(Frame):
    """This is the GUI"""

    def __init__(self,master=None):
        """Initialize yourself"""

        """Initialise the base class"""
        Frame.__init__(self,master)

        """Set the Window Title"""
        self.master.title("Calculator")

        """Display the main window"
        with a little bit of padding"""
        self.grid(padx=10,pady=10)
        self.CreateWidgets()

    def CreateWidgets(self):

        self.enText = Entry(self)
        self.enText.grid(row=0, column=0, columnspan=8, padx=5,
pady=5)

        self.enText = Entry(self)
        self.enText.grid(row=1, column=0, columnspan=8, padx=5,
pady=5)

        self.btnDisplay = Button(self, text="1",
command=self.Display(1))
        self.btnDisplay.grid(row=3, column=0, padx=5, pady=5)

        self.btnDisplay = Button(self, text="2", default=ACTIVE)
        self.btnDisplay.grid(row=3, column=1, padx=5, pady=5)

        self.btnDisplay = Button(self, text="3", default=ACTIVE)
        self.btnDisplay.grid(row=3, column=2, padx=5, pady=5)

        self.btnDisplay = Button(self, text="+", default=ACTIVE)
        self.btnDisplay.grid(row=3, column=3, padx=5, pady=5)

        self.btnDisplay = Button(self, text="4", default=ACTIVE)
        self.btnDisplay.grid(row=4, column=0, padx=5, pady=5)

        self.btnDisplay = Button(self, text="5", default=ACTIVE)
        self.btnDisplay.grid(row=4, column=1, padx=5, pady=5)

        self.btnDisplay = Button(self, text="6", default=ACTIVE)
        self.btnDisplay.grid(row=4, column=2, padx=5, pady=5)

        self.btnDisplay = Button(self, text="-", default=ACTIVE)
        self.btnDisplay.grid(row=4, column=3, padx=5, pady=5)

        self.btnDisplay = Button(self, text="7", default=ACTIVE)
        self.btnDisplay.grid(row=5, column=0, padx=5, pady=5)

        self.btnDisplay = Button(self, text="8", default=ACTIVE)
        self.btnDisplay.grid(row=5, column=1, padx=5, pady=5)

        self.btnDisplay = Button(self, text="9", default=ACTIVE)
        self.btnDisplay.grid(row=5, column=2, padx=5, pady=5)

        self.btnDisplay = Button(self, text="*", default=ACTIVE)
        self.btnDisplay.grid(row=5, column=3, padx=5, pady=5)

        self.btnDisplay = Button(self, text="0", default=ACTIVE)
        self.btnDisplay.grid(row=6, column=0, padx=5, pady=5)

        self.btnDisplay = Button(self, text="C", default=ACTIVE)
        self.btnDisplay.grid(row=6, column=1, padx=5, pady=5)

        self.btnDisplay = Button(self, text="r", default=ACTIVE)
        self.btnDisplay.grid(row=6, column=2, padx=5, pady=5)

        self.btnDisplay = Button(self, text="/", default=ACTIVE)
        self.btnDisplay.grid(row=6, column=3, padx=5, pady=5)

    def Display(self, xbtn):
        if xbtn==1:
            print 1

if __name__ == "__main__":
    guiFrame = GUIFramework()
    guiFrame.mainloop()

[/code]