[Python-Dev] Proposing "Argument Clinic", a new way of specifying arguments to builtins for CPython

Georg Brandl g.brandl at gmx.net
Sun Dec 9 09:09:58 CET 2012

Am 04.12.2012 20:35, schrieb Antoine Pitrou:
> On Tue, 04 Dec 2012 11:04:09 -0800
> Larry Hastings <larry at hastings.org> wrote:
>> Along these lines, I've been contemplating proposing that Clinic 
>> specifically understand "path" arguments, distinctly from other string 
>> arguments, as they are both common and rarely handled correctly.  My 
>> main fear is that I probably don't understand all their complexities 
>> either ;-)
>> Anyway, this is certainly something we can consider *improving* for 
>> Python 3.4.  But for now I'm trying to make Clinic an indistinguishable 
>> drop-in replacement.
> [...]
>> Naturally I agree Clinic needs more polishing.  But the problem you fear 
>> is already solved.  Clinic allows precisely expressing any existing 
>> PyArg_ "format unit"** through a combination of the type of the 
>> parameter and its "flags".
> Very nice then! Your work is promising, and I hope we'll see a version
> of it some day in Python 3.4 (or 3.4+k).

Looks good to me to, and as someone who once tried to go the "preprocessor
macro" route, much saner.

One small thing: May I propose to make the "special comments" a little more
self-descriptive? Yes, "argument clinic" is a nice name for the whole thing,
but if you encounter it in a C file there's nothing it tells you about what
happens there.


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