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

[Larry Keber]

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


> Runtime error is NameError: global name 'plotme' is not defined.  Looking 
> for answers in the vast internet have not yielded too much.  I hope this 
> is simple.  Rick Werme's example code is great, but I couldn't infer what 
> to do from it.  I learned a lot from doing this, but apparently not quite 
> enough yet.
>
> Anyone got a suggestion?  Besides "Step away from the terminal Sir"!  This 
> has been quite a good learning experience overall.  I'm pleased with the 
> overall project to date.