Avi Kak wrote:
> Hello:
>
> Suppose I write a function that I want to be called
> with ONLY keyword argumnts, how do I raise an
> exception should the function get called with
> what look like position-specfic arguments?
>
> Any help would be appreciated.
Say you want the signature to be foo(a, b, c) with no positional
arguments allowed. You can do this:
def foo(*args, **kwargs):
a = kwargs.pop('a')
b = kwargs.pop('b')
c = kwargs.pop('c')
if args or kwargs:
raise TypeError("foo takes only keyword arguments: foo(a,b,c)")
# ...
Or something similar.
-tim
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