After nine months, no support has grown beyond the original poster. The
PEP did however generate some negative responses when brought-up on
comp.lang.python (it made some people's stomach churn).
The PEP fails the tests of obviousness and necessity. The PEP's switch
example is easily handled by replacing the callable None with a simple,
null lambda:
def __call__(self, input):
return {1 : self.a,
2 : self.b,
3 : self.c
}.get(input, lambda *args: 0)(input)
The PEP does not address conflicts with other uses of None (such as
default arguments or indicating values that are not applicable).
Mysteriously, the PEP consumes only *args but not **kwargs.
It also fails with respect to clarity and explicitness. Defining a
short, explicit default function is a hands-down winner in these two
important measures of merit.
Raymond
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