[Python-Dev] A Desperate Plea For Introspection (aka: BDFAP Needed)

Yury Selivanov yselivanov.ml at gmail.com
Fri Jun 22 22:44:39 CEST 2012


On 2012-06-22, at 4:20 PM, Terry Reedy wrote:

> On 6/22/2012 3:24 PM, Yury Selivanov wrote:
>> On 2012-06-22, at 3:18 PM, Guido van Rossum wrote:
> 
>>> Hardly, because that's not valid syntax. I'd write name(arg1, *,
>>> arg2=<default>).
>> 
>> Like
>> 
>>     replace(*, name=<default>, kind=<default>, default=<default>,
>>                                   annotation=<default>) -> Parameter
>> 
>> or
>> 
>>     replace(*, name=<optional>, kind=<optional>, default=<optional>,
>>                                   annotation=<optional>) -> Parameter
> 
> I do not undertand the 'or'. I hope you mean default argument expressions in the standard manner rather than '<default>' or '<optional>'.

It's now in the updated PEP.  We use '<optional>' notation
just to specify that the parameter is optional, i.e. can
(or in some cases should) be omitted.

-
Yury


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