On 4/16/2010 11:22 AM, Dino Viehland wrote:
Mark Dickinson wrote:
Removing it certainly seems in keeping with the goal of making life
easier for alternate implementations.  (Out of curiosity, does anyone
know what IronPython does here?)

I've opened http://bugs.python.org/issue8419


It looks like IronPython reports a type error as well:

IronPython 2.6.1 DEBUG (2.6.10920.0) on .NET 2.0.50727.4927
Type "help", "copyright", "credits" or "license" for more information.
def f(**kwargs):
...     print(kwargs)
...
kwargs = {1: 3}

dict({}, **kwargs)
Traceback (most recent call last):
   File "<stdin>", line unknown, in<module>
TypeError: expected string for dictionary argument got 1
d = {1:2}
d.update({3:4}, **{5:6})
Traceback (most recent call last):
   File "<stdin>", line unknown, in<module>
TypeError: expected string for dictionary argument got 5

If the current CPython behavior is deprecated in 3.2, then I think IronPython should keep its current behavior (and future Cpython behavior) in IP 3.2 and not change it for one version.

tjr



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