[Python-ideas] Positional only arguments
Greg Ewing
greg.ewing at canterbury.ac.nz
Mon May 21 09:07:12 CEST 2007
Steven Bethard wrote:
> That means that in the following signature::
>
> def f(*, a, b=None, *args, **, c=42, **kwargs)
I don't like this. Having more than one * or ** in
the same signature seems like it would be very confusing.
I think the desire for positional-only args would be
addressed well enough using a naming convention. Even
without further explanation, if I saw something like
def f(_a, _b, _c):
...
it would be pretty clear to me that the author intended
the parameter names to be an implementation detail.
This could even be enforced if relying on a convention
were not considered strong enough, although it would
be more consistent to insist on a double underscore to
get automatic enforcement.
--
Greg
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