error when using Pmw.BLT

Yang Yang yyangbian at
Wed Oct 21 17:50:41 CEST 2009


I tried to follow the following code demonstrating the use of Pmw.BLT:

>>> from Tkinter import *
>>> import Pmw
>>> master = Tk()
>>> g = Pmw.Blt.Graph( master )

I got the following error message after I typed the last line:

Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
 File "C:\Python26\lib\site-packages\Pmw\Pmw_1_3\lib\", line
260, in _
   Tkinter.Widget.__init__(self, master, _graphCommand, cnf, kw)
 File "C:\Python26\lib\lib-tk\", line 1932, in __init__
   (widgetName, self._w) + extra + self._options(cnf))
_tkinter.TclError: invalid command name "::blt::graph

I am a newbie in python. Does anybody know what causes this error? I
am running python 2.6.3 under windows xp.

Thanks for your help!!
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