Checking for invalid keyword arguments?

[Roy Smith]

Peter Hansen <peter at engcorp.com> wrote:
> By the way, you didn't explain why you don't want to get passed arguments
> you didn't expect.  Can't you simply ignore them?

I'm taking some early prototype code and changing the API around a bit 
as the design evolved.  I thought I had changed everything, but had a 
bug due to having missed a change in one place.  I was calling a routine 
using the old API and the now incorrect argument was just being silently 
ignored.

Upon further consideration (i.e. having several people point out the 
obvious to me!), I've come to realize that I don't really need the 
kwArgs mechanism at all.  The simplier default mechanism does exactly 
what I want!  Not clear what got me thinking I needed something more 
complicated in the first place.

Thanks for the help.