On Wed, Jun 20, 2012 at 1:28 PM, Yury Selivanov <yselivanov...@gmail.com> wrote:
> On 2012-06-19, at 11:24 PM, Nick Coghlan wrote:
>> The constructor accepts an iterable of Parameter objects rather than a
>> mapping.
>
> That's the code I've ended up with:
>
> sig = signature(obj.__func__)
> return Signature(OrderedDict(tuple(sig.parameters.items())[1:]),
> **sig.optional)
Why require a mapping as the argument? A simple iterable of Parameter
objects seems like a more convenient constructor API to me. The
constructor can take care of building the mapping from that internally
via:
param_map = OrderedDict((param.name, param for param in parameters))
> Still looks better than creating implicit & explicit copies ;)
Indeed :)
>
> As for slices support in OrderedDict -- it would return values, so
> it won't solve the problem anyways.
You wouldn't want to do it anyway - while slices happen to not be
hashable *now*, there's no strong reason behind that.
Cheers,
Nick.
--
Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia
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