Iterate creating variables?

tdahsu at gmail.com tdahsu at gmail.com
Fri Jun 13 17:56:12 CEST 2008


On Jun 13, 11:48 am, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
> tda... at gmail.com schrieb:
>
>
>
> > On Jun 13, 11:21 am, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
> >> tda... at gmail.com schrieb:
>
> >>> I have twenty-five checkboxes I need to create (don't ask):
> >>> self.checkbox1 = ...
> >>> self.checkbox2 = ...
> >>> .
> >>> .
> >>> .
> >>> self.checkbox25 = ...
> >>> Right now, my code has 25 lines in it, one for each checkbox, since
> >>> these are all variables.
> >>> Is there a way to write a loop so that I can have fewer lines of code
> >>> but still keep the variables?
> >>> I've tried:
> >>> for o in xrange(25):
> >>>     self.checkbox[o] = ...
> >>> which didn't work, and
> >>> for o in xrange(25):
> >>>     self.checkbox[''%d'%(o)] = ...
> >>> which also didn't work.
> >>> Both give the error message: "Attribute error: Main.App has no
> >>> attribute "checkbox"", which clearly indicates that I'm not keeping
> >>> the "variability" aspect I want.
> >>> Is there a way?
> >> Keep either a list or dictionary around. Like this:
>
> >> checkboxes = []
>
> >> for o in xrange(25):
> >>      checkboxes.append(....create a checkbox...)
>
> >> self.checkboxes = checkboxes
>
> >> Diez
>
> > I don't understand... how do I then complete the assignment statement?
>
> > If I have:
>
> > self.checkbox1 = xrc.XRCCTRL(self.panel01, 'Checkbox1')
> > .
> > .
> > .
> > self.checkbox25 = xrc.XRCCTRL(self.panel01, 'Checkbox25')
>
> > using your method, wouldn't I still need to figure out my original
> > question?
>
> > If I have a list of checkboxes, then I'll have:
>
> > checkboxes = [checkbox1, checkbox2 ... checkbox25]
>
> > in which case I'd still need to figure out how to get the variable at
> > the end of checkbox to do the rest of the "=" statement.
>
> I don't fully understand that. But if your code is uniform and looks
> like the above, it appears that
>
> for o in xrange(25):
>      checkboxes.append(xrc.XRCCTRL(self.panel01, 'Checkbox%i' % o))
>
> is the way to go.
>
> Diez

Thank you, this is much closer to where I need to be...

The issue is (and this is the part that you don't know, because I
didn't tell you!) is that I later need to call methods on
"self.checkbox1", for instance:

self.checkbox1.GetValue()

to determine if the box is checked or not.

I should have included that piece in the initial problem description;
my apologies.



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