[Tutor] passing arguments via an instance of a class

[Kent Johnson]

Alan Gauld wrote:
> #This is now the button which is supposed to feed the PlotPanel
> #the points it needs.  It is a method of the wxFrame (code not shown)
>> def OnButton1Button(self, event):
>> #these are the points I want to be plotted when I push this button
>>        xpoints=[2,4,6]
>>        ypoints=[10,20,30]
>>        self.weightplot = PlotPanel(self.notebook1,xpoints,ypoints)
> 
> But this needs to use self to access the member values:
> 
>         self.weightplot = 
> PlotPanel(self.notebook1,self.xpoints,self.ypoints)

A minor correction to an otherwise excellent explanation - xpoints and 
ypoints are not member variables here - they are ordinary local 
variables - so 'self' is not needed.

Kent