[Python-Dev] nonlocal x = value

[Benjamin Peterson]

2010/12/17 Stefan Behnel <stefan_ml at behnel.de>:
> Hi,
>
> it seems that Py3 doesn't support setting a "nonlocal" value as part of the
> "nonlocal" command
>
>    Python 3.2a4+ (py3k:86480, Nov 16 2010, 16:43:22)
>    [GCC 4.4.3] on linux2
>    Type "help", "copyright", "credits" or "license" for more information.
>    >>> def x():
>    ...   y = 5
>    ...   def f():
>    ...     nonlocal y = 6
>      File "<stdin>", line 4
>        nonlocal y = 6
>                   ^
>    SyntaxError: invalid syntax
>
> even though the PEP clearly describes this feature.
>
> http://www.python.org/dev/peps/pep-3104/#proposed-solution
>
> Either the PEP or the implementation should be updated. Personally, I think
> the PEP should be changed as I think that the syntax complicates the grammar
> more than it's worth. Also, the moratorium applies here, given that Py3.1
> does not implement this.
>
> Comments?

There's a issue and a patch for this somewhere. I personally don't
care; it's not too painful to write two lines.



-- 
Regards,
Benjamin