Timothy Grant <tjg at avalongroup.net>
> I know I am missing something ridiculously simple here, but how come I
> cannot do the following...
>
> >>> class test:
> ... def __init__(self):
> ... self.x = StringVar()
> ...
> >>> tjg = test()
> Traceback (innermost last):
> File "<stdin>", line 1, in ?
> File "<stdin>", line 3, in __init__
> File "/usr/lib/python1.5/lib-tk/Tkinter.py", line 110, in __init__
> Variable.__init__(self, master)
> File "/usr/lib/python1.5/lib-tk/Tkinter.py", line 85, in __init__
> self._tk = master.tk
> AttributeError: 'None' object has no attribute 'tk'
>
> I am trying to create a class that has several StringVar instances as
> attributes, but it doesn't seem to work the way I'd like.
>
> All help is greatly appreciated.
If you create a `Tk' object first, the error goes away:
-------------------------------------------------------------------------------
Python 1.5.2 (#5, Jan 4 2000, 11:37:02) [GCC 2.7.2.1] on linux2
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> from Tkinter import *
>>> StringVar()
Traceback (innermost last):
File "<stdin>", line 1, in ?
File "/usr/lib/python1.5/lib-tk/Tkinter.py", line 110, in __init__
Variable.__init__(self, master)
File "/usr/lib/python1.5/lib-tk/Tkinter.py", line 85, in __init__
self._tk = master.tk
AttributeError: 'None' object has no attribute 'tk'
>>> root = Tk()
>>> StringVar()
<Tkinter.StringVar instance at 8270ed0>
>>>
-------------------------------------------------------------------------------
--
Christian Tanzer tanzer at swing.co.at
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