[Python-Dev] PEP 343 - Abstract Block Redux

[Greg Ewing]

Phillip J. Eby wrote:

> Why?  If "with" is a "scope statement", then it doesn't make any sense 
> to use it with something you intend to reuse later.  The statement 
> itself is an assertion that you intend to "release" the resource at the 
> end of the block, for whatever "release" means to that object.  
> Releasing a file is obviously closing it, while releasing a lock is 
> obviously unlocking it.

I've stopped arguing against giving with-protocol
methods to files, etc., since it was pointed out that
you'll get an exception if you try to re-use one.

I still think it's conceptually cleaner if the object
you use to access the resource is created by the
__enter__ method rather than being something pre-
existing, but I'm willing to concede that PBP here.

-- 
Greg Ewing, Computer Science Dept, +--------------------------------------+
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