Tkinter(2)

[vijayca]

my python installation is:Active python 2.5.1
i am using Red Hat Linux
i have the Tkinter module installed but any simple script produces an
error....

script:
from Tkinter import Label
widget = Label(None, text='Hello GUI world!')
widget.pack()
widget.mainloop()


error:
Traceback (most recent call last):
  File "guy.py", line 2, in <module>
    widget = Label(None, text='Hello GUI world!')
  File "/root/Desktop/pythonall/ActivePython-2.5.1.1-linux-x86/
INSTALLDIR/lib/python2.5/lib-tk/Tkinter.py", line 2464, in __init__
    Widget.__init__(self, master, 'label', cnf, kw)
  File "/root/Desktop/pythonall/ActivePython-2.5.1.1-linux-x86/
INSTALLDIR/lib/python2.5/lib-tk/Tkinter.py", line 1923, in __init__
    BaseWidget._setup(self, master, cnf)
  File "/root/Desktop/pythonall/ActivePython-2.5.1.1-linux-x86/
INSTALLDIR/lib/python2.5/lib-tk/Tkinter.py", line 1898, in _setup
    _default_root = Tk()
  File "/root/Desktop/pythonall/ActivePython-2.5.1.1-linux-x86/
INSTALLDIR/lib/python2.5/lib-tk/Tkinter.py", line 1636, in __init__
    self.tk = _tkinter.create(screenName, baseName, className,
interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: no display name and no $DISPLAY environment
variable


please help me....
i hate those error messages...
vijay