[Python-talk] Speaking of oops. How to call a method in another class in another file?

[bruce.labitt at autoliv.com]

python-talk-bounces at dlslug.org wrote on 07/28/2009 02:49:30 PM:

> bruce.labitt at autoliv.com wrote:
> > I'm plodding along with wxpython.  I mostly have the graphic part set 
up. 
> > Now I am trying to connect the display to bits of my program.  The 
first 
> > bit is to plot an existing data file.  I used filepicker to get the 
full 
> > file name.  I don't quite understand how to invoke/use one of the 
methods 
> > that I created in the class Xambig.
> >
> > Xambig is in the file genwave.py.  Inside of Xambig is a method named 
> > plotMe. 
> > 
> (snip)
> 
> >                 if ( plot =="Plot existing"):
> >                         p = genwave.Xambig()
> >                         plotme(p, filepath, myrange)  ??? 
> > 
> > 
> 
> The call would be:
> 
>     p.plotme(filepath, myrange)
> 
> When you call it that way, the object itself ('p' in this case) is 
> implicitly passed as the first ('self') parameter of the method.
> 
> Larry
> 

That was my first approach.  I got the following error
AttributeError: Xambig instance has no attribute 'plotme'

What do I need to do in the __init__ part of the class?  Right now it is 
empty.
Do I need to do something like

class Xambig:
        def __init__(self):
                # initialization stuff here... then
                myfile = "ambig.dat"
                myrange = 200.00
                self.plotme = plotMe(myfile, myrange)

        def plotMe(self, fileName, myRange):
                """plot all kinds of stuff"""

Then 

                        if ( plot=="Plot existing" ):
                                p = genwave.Xambig()
                                p.plotme( myfile, myrange )


-Bruce

<snip>

 
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