On Sat, 23 Jun 2007 09:06:36 -0700, John Henry wrote:
>>
>> > But then how do I create the on_Button1_mouseClick function?
>>
>> That depends on what it is supposed to do, but in general you want a
>> factory function -- a function that returns functions. Here's a simple
>> example:
>>
> <snip>
>
> Steven,
>
> May be I didn't explain it clearly: the PythonCard package expects to
> see a function by the name of on_Button1_mouseClick. I don't do
> anything to register the callback function. The package assumes that
> there is a function by that name whenever I create a button named
> Button1. So, if I don't use exec, how can I create a function by that
> exact name?
def mouseclick_factory(name):
def function(self, event):
print "You clicked '%s'." % name
function.name = "on_%s_mouseClick" % name
return function
class Parrot:
def __init__(self, name):
function = mouseclick_factory(name) # as before
method = new.instancemethod(function, self, self.__class__)
setattr(self, function.name, method)
And here it is in action:
>>> p = Parrot("Button1")
>>> p.on_Button1_mouseClick("event")
You clicked 'Button1'.
--
Steven.
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