[Python-Dev] Updated PEP 362 (Function Signature Object)

Benjamin Peterson benjamin at python.org
Sun Jun 10 19:59:35 CEST 2012


2012/6/5 Brett Cannon <brett at python.org>:
> * is_keyword_only : bool
>     True if the parameter is keyword-only, else False.
> * is_args : bool
>     True if the parameter accepts variable number of arguments
>     (``\*args``-like), else False.

How about "vararg" as its named in AST.

> * is_kwargs : bool
>     True if the parameter accepts variable number of keyword
>     arguments (``\*\*kwargs``-like), else False.

Can the "is_" be dropped? It's quite ugly. Even better, since these
are all mutually exclusive, they could be cascaded into a single
"type" attribute.

> * is_implemented : bool
>     True if the parameter is implemented for use.  Some platforms
>     implement functions but can't support specific parameters
>     (e.g. "mode" for os.mkdir).  Passing in an unimplemented
>     parameter may result in the parameter being ignored,
>     or in NotImplementedError being raised.  It is intended that
>     all conditions where ``is_implemented`` may be False be
>     thoroughly documented.




-- 
Regards,
Benjamin


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