Re: textvariable help
Thanks - actually I have some of those books on the way from amazon. The first couple of days with a new language are always the hardest! -- http://mail.python.org/mailman/listinfo/python-list
Re: textvariable help
swisscheese wrote: > Thanks for the quick reply. With your reply and another tutorial I get > it now. I needed "self.Rows = ..." in the constructor. I find myself > wasting a lot of time with poor python docs. I have found the standard library documentation amazingly well written: http://www.python.org/doc/ > Whatever time Python is > supposed to save I'm losing so far in looking up things. I suppose that > will change as I get past the learning curve. Python will save you a lot of time when you come back to your code 6 months later and when you begin to get some competence at the more esoteric aspects of python, like generators, closures, and magic methods. > Are you aware of any good > docs on python that make it easy to find things? It depends on your task. Jumping into GUI programming without a solid grasp of the language you are writing in can be frustrating. In fact jumping into GUI programming at all can be frustrating. I learnt from Learning Python by O'Reilly. Beyond that I highly recommend Python Programming. I especially recommend chapters 2, 3, 6, 7, and 8 of the latter. If you have the time, try to get through as much of both of those as you can. Beyond that, you may want to keep a copy of Python in a Nutshell by your keyboard. I use the classic Python Essential Reference, which is now pretty dated. If you have not worked through a tutorial on python basics, you should really stop what you are doing and spend a few hours doing that. It will make you much more pleased with the language. James -- http://mail.python.org/mailman/listinfo/python-list
Re: textvariable help
None - it was a false impression I got somehow. -- http://mail.python.org/mailman/listinfo/python-list
Re: textvariable help
"swisscheese" wrote: > Thanks for the quick reply. With your reply and another tutorial I get > it now. I needed "self.Rows = ..." in the constructor. I find myself > wasting a lot of time with poor python docs. Whatever time Python is > supposed to save I'm losing so far in looking up things. I suppose that > will change as I get past the learning curve. Are you aware of any good > docs on python that make it easy to find things? just curious, but what documentation told you to use a class variable in the way you did ? -- http://mail.python.org/mailman/listinfo/python-list
Re: textvariable help
Thanks for the quick reply. With your reply and another tutorial I get it now. I needed "self.Rows = ..." in the constructor. I find myself wasting a lot of time with poor python docs. Whatever time Python is supposed to save I'm losing so far in looking up things. I suppose that will change as I get past the learning curve. Are you aware of any good docs on python that make it easy to find things? -- http://mail.python.org/mailman/listinfo/python-list
Re: textvariable help
swisscheese wrote:
> I must be missing something basic.
> Can anyone explain why 'A' does not show on the entry widget?
>
> import Tkinter
> root = Tkinter.Tk()
> class Col:
> Rows = [0]
> def __init__(self):
> Frame = Tkinter.Frame(root);
> Frame.pack (side='left')
> self.Rows[0] = Tkinter.StringVar();
> Tkinter.Entry(Frame,textvariable=self.Rows[0]).pack ();
> X = Col()
> # X.Rows[0].set ('A') # 'A' displays in Entry this way
> Y = Col()
> X.Rows[0].set ('A') # Why not also this way?
> Y.Rows[0].set ('B')
> root.mainloop()
Rows is a class variable, and since you're modifying it in place, Rows[0] will
always be set to the most recently created Entry widget.
what is it you're trying to do here ?
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