[IronPython] Error message for duplicate keyword arguments
Dino Viehland
dinov at microsoft.com
Tue Sep 8 18:27:07 CEST 2009
Filed as 24576 (http://ironpython.codeplex.com/WorkItem/View.aspx?WorkItemId=24576)
I don't know that it'll get fixed for 2.6 (although I will take a look). But
I think keyword arg calling needs some general work post-2.6 so that
polymorphic and megamorphic cases work faster and this fix could at least be
done at the same time as that.
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-
> bounces at lists.ironpython.com] On Behalf Of Michael Foord
> Sent: Monday, September 07, 2009 9:11 AM
> To: Discussion of IronPython
> Subject: [IronPython] Error message for duplicate keyword arguments
>
> Hello all,
>
> A confusing error message from IronPython 2.6 B2:
>
> >>> def f(a=None):
> ... pass
> ...
> >>> f(1, a=3)
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: f() takes at most 1 non-keyword argument (1 given)
>
>
> CPython:
>
> >>> def f(a=None):
> ... pass
> ...
> >>> f(100, a='fish')
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: f() got multiple values for keyword argument 'a'
> >>>
>
>
>
> --
> http://www.ironpythoninaction.com/
> http://www.voidspace.org.uk/blog
>
>
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