Tkinter error

Finally started trying to build a simple gui form for inserting text
data into a mysql db of quotations.

I found this nice Tkinter tutorial,

http://www.ibiblio.org/obp/py4fun/gui/tkPhone.html

but midway I'm getting an error.

from Tkinter import *

win = Tk()
f = Frame(win)
b1 = Button(f, "One")

Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1936, in __init__
Widget.__init__(self, master, 'button', cnf, kw)
File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1859, in __init__
BaseWidget._setup(self, master, cnf)
File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1839, in _setup
if cnf.has_key('name'):
AttributeError: 'str' object has no attribute 'has_key'

.