TypeError

[Steve Holden]

joonas wrote:
> 
> I used the "print type(first)" method and it printed
> 
> "<type 'Button'>"
> 
> but when i wrote used "print first" it gave me
> 
> "100"
> 
> So. How can i make first substractable.
> 
> Joonas.

If you can tell me how to subtract three from a banana, I'll tell you
how to subtract one hundred from a button!

The confusion seens to be that you want to get some numeric property
of the button (probably its caption) and subtract that from it.  A button
is a complex graphical object, with many properties.

When you see "100" as the value of the button in printing it, the print
statement is actually asking the Python system to produce a printable
representation of itself.

Look in the Tkinter documentation at the properties of buttons, and
you'll probably find what you need is something like

	sppedgear.text = str(int(first.text) - int(second.text))

Hope this helps.

regards
 Steve
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