How do you subclass various wx.Windows?

[Christopher Barker]

Hi all,

When I subclass a wx.Window (could be a panel, Dialog, whatever), I 
often need to pass in a small set of parameters. In addition to these, 
I'd like to be able to pass in the usual wx.Window set: size, position, 
flags, etc. I'm not sure the best way to do this, so I thought I'd see 
what you all do.

For just a couple, I tend to do something like this:

class MyDialog(wx.Dialog):

     def __init__(self, param1, param2, *args, **kwargs):
         wx.Dialog.__init__(self, *args, **kwargs)

	# Do something with param1 and param2

Which then needs to be called with:

MyDialog(p1,p2, parent, ....)

The problem with this is that param1 and param2 are non-keyword, 
required arguments. That's usually fine if there are just a couple, but 
if there are 6 or seven , and many are optional, I'm not sure what to 
do. Also, we're all so used to passing the parent in first.
I could do:

class MyDialog(wx.Dialog):

     def __init__(self, parent, param1=None, param2=None, **kwargs):
         wx.Dialog.__init__(self, *args, **kwargs)

	# Do something with param1 and param2

That would be OK, but then all the usual arguments need to be passed in 
with keywords -- not too bad.

Another option is this:

class MyDialog(wx.Dialog):
     def __init__(self, *args, **kwargs):

         self.param1 = kwargs.pop("param1", None)
         self.param2 = kwargs.pop("param2", None)

         wx.Dialog.__init__(self, *args, **kwargs)



But that requires that all extra parameters be given as keyword args 
(not too bad, I like to do that anyway), and also is a bit confusing, 
and the function signature doesn't give you any info about what's expected.

Any thoughts?

-Chris

-- 
Christopher Barker, Ph.D.
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