[Python-Dev] Re: method decorators (PEP 318)

[Phillip J. Eby]

At 10:38 PM 3/29/04 -0500, Shane Hathaway wrote:
>On 03/29/04 18:51, Greg Ewing wrote:
>>Shane Hathaway <shane at zope.com>:
>>
>>>That would be nice, but here is what I would like it to mean:
>>>
>>>   def _f():
>>>     do_something()
>>>   lock(foo)(_f)
>>
>>But what about
>>   x = 17
>>   with lock(foo):
>>     x = 42
>>   print x
>>?
>
>Hmm, yep, that won't work.  A pity.

It would work if the code in the block was treated as a nested scope but 
with write access to the immediately surrounding scope.  But that's quite a 
bit of compiler change, I'd imagine.  Anyway, this is one of the very few 
places where I'd actually be in favor of allowing rebinding variables from 
an enclosing scope.