newbie: binding args in callbacks

[Gerhard Haering]

In article <3D2C3CAB.BE7084F1 at tds.net>, Edward K. Ream wrote:
> I would like to create a set of Tkinter callbacks that vary only in the
> bindings of a single argument. For example,  I would like to do:
> 
> for val in vals:
>   b = Tk.Button(...,command=self.myCallback(val))
> 
> But this doesn't work: it executes callback, rather than returning the
> callback function with the second arg bound to val.

I've no idea about Tkinter at all, but this should accomplish what you
need:

    command=lambda: self.myCallback(val)

I don't know for sure, but I think this needs nested scopes. So if you're
using Python 2.1, be sure to "from __future__ import nested_scopes". In
Python 2.2, this is the default.

Gerhard
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