[Python-Dev] PEP 457: Syntax For Positional-Only Parameters (original) (raw)

Larry Hastings larry at hastings.org
Wed Oct 9 09:44:53 CEST 2013

On 10/09/2013 03:57 AM, Joao S. O. Bueno wrote:

def a([b],/,**kw): print (b)

does calling "a(b=5)" should raise a TypeError, or put "5" in """kw["b"]""" and leave "b" as "undefined" ?

The latter. This is how they are "similarly to *args and **kwargs":

 >>> def foo(*a, **kw):
...   print(a, kw)
...
 >>> foo(a=3, kw=5)
() {'kw': 5, 'a': 3}
 >>>

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